Weekend weather forecast for the Western Isles 30th of September

Good afternoon Western Isles and welcome to the weekend ahead forecast for the islands. Normally I would post this on a Thursday but yesterday I was busy doing the forecast update for today’s severe weather.

At this stage on this Friday afternoon, the Met Office yellow weather warning for wind remains in force till 15:00 Friday afternoon.

Saturday and Sunday –

We are going to see a day of sunshine and showers on both Saturday and Sunday along with winds of 20 to 40 mph. These winds will be from the West and South West. Temps of 9C to 15C

As you can see from this surface pressure chart for Saturday from the Met Office low pressure will dominate the weather as it sits between us and iceland

Monday – We will see a dry start to the day but heavy rain will move in across the islands during the afternoon and evening which will be accompanied by strengthening winds gusting 50 to possibly 60 mph. Winds will be from the South and South West. Temps of 9C to 15C

This spell of wet and windy weather will come about due to a low pressure system skirting past the Western Isles. The track and strength of the low pressure could change over the coming days so I will keep you updated. This image comes from the GFS 06Z run from the website WX charts.

Tuesday –

Not quite the weekend granted but worth talking about as it looks like we will see another area of low pressure whipping in off the Atlantic which will give further spells of heavy rain to the islands and winds gusting 50 to 60 mph. Again a long way off as yet but it is something to keep an eye on.

Thanks for reading.

Friday’s forecast – Strong winds and heavy rain

Good evening Western Isles on this Thursday evening we are seeing plenty of cloud with rain moving in from the West. Winds gusting 30 mph. Today’s high of 12.8C

Please do NOT use Western Isles Weather for the protection of life and property please follow local and national government issued warnings and advice. Please have more than one source for weather information in extreme weather, Such as the Met Office and follow any advice and instructions from emergency responders.

The Met Office has issued a yellow weather warning for wind for the Western Isles. The warning comes into force at 08:00 Friday morning and expires at 15:00 Friday afternoon the full warning and latest updates can be found on the Met Office website or app.

Now please note despite the warning coming into force at 08:00 we will see stronger winds across our islands before that time. I have got to the honest I am a little surprised at the warning doesn’t come into force before 08:00. Another factor of the weather which will accompany the strong winds will be heavy rain. With the likely be rains of 20 to 40 mm. Which could result in some surface flooding. The islands are also seeing spring tides at the moment so high tides could result in some road closures. I will try and update the page the best I can on this but I will be limited at times please keep an eye on the council updates for road closures. Some transport services in the Uist and Barra are not running on Friday or working on a reduced timetable and some schools are starting later in the day.

Winds this strong are nothing unusual for the island but it’s quite early in the season to see possible wind gusts in excess of 65 / 70 mph. It will be a fairly shortlived strong wind event with the worst of the strong winds being cleared away by the afternoon and it’s not in the same ballpark strong wind wise as Storm Corrie earlier this year or the 2005 or 2015 storms to calm any concerns.

Overnight and Morning – Heavy rain will sweep across the Western Isles and become persistent and slow moving. We will see winds increasing as the night goes on gusting 30 to 40 mph. By around 6 and 7 am we will see winds gusting 50 to 60 mph and thus will be the peak of the wind speeds lasting till around 10 am with winds gusting 65 to 70 mph in some spots we could see 75 mph but this is quite a low chance. The area of the very strongest winds is expected over a fairly narrow area. The heavy rain will continue for much of the morning. Winds will be from the South and shifting mid morning to come from the South West.

Afternoon and evening – The winds will ease slightly still gusting 20 to 40 mph with sunshine and showers. Some longer spells of rain at times. Winds will be from the West and South West.

Temps of 8C to 15C

Sunrise and Sunset

Stornoway – 07:27 and 19:03

South Uist – 07:30 and 19:08

Outlook

Saturday and Sunday – Sunshine and showers with brisk winds gusting 20 to 40 mph from the South West. Temps of 12C to 15C

Monday – Heavy rain and plenty of cloud with winds of 20 to 40 mph gusting to 50 mph. Temps of 11C to 14C

Tuesday – Once again looks like we could see some strong winds across the islands. Some of the models are suggesting we could see winds gusting 70 mph again with further rain. At this stage, a long way off yet first will be seeing what tomorrow brings but following the trends, I will get you a further update on this tomorrow

Have a great evening,

Friday 30th of September severe weather for the Western Isles and Tiree

Good afternoon Western Isles and welcome to this severe weather blog. Covering the severe weather for the Western Isles and Tiree for Friday 30th of September. Our first spell of severe of the season so far. Just for awareness, this severe weather is not the tale end of a hurricane. This is caused by a deep area of low pressure to the North and North West of the islands and a vigorous frontal system.

So let’s start with the Met Office warning. So earlier today the Met Office issued a yellow weather warning for wind which covers Tiree and The Western Isles. The warning comes into force at 08:00 Friday morning and expires at 15:00 Friday afternoon. The full warning and latest updates can be found via the Met Office website or app. It is worth noting that despite the warning not coming into force until 08:00 we will see stronger winds increasing before that time.

and from the Met Office chief forecaster

https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings#?date=2022-09-29

Now a Yellow weather warning for rainfall has also been issued by the Met Office this does not cover the Western Isles or Tiree. However please note that we will see heavy and persistent rainfall in the islands. You can see this in the tweet below from the Met Office.

Another tweet from the Met Office shows the larger scale view of Fridays weather system

So in this stage of the blog, we are going to break the day down.

I feel this weather event could catch some people off guard with it being the first severe weather event of the season. 70 mph in late September is not unusual but something we would normally expect later in the Autumn and Winter.

So winds will start to increase this evening gusting 30 mph and increase further overnight gusting 40 to 50 mph. The peak across the islands will be from around 5 am till around 11 am with winds gusting 60 to 70 mph. Not everyone will see the strongest of these winds. it will be quite localised at times. There is good model consistency about these wind speeds. From my point of view, it could be quite hard to get verification with only having three Met Office sites on these islands. Tiree, South Uist and Stornoway to confirm how strong the winds get. I wouldn’t be surprised if some exposed coastal areas had wind gusts reaching 75 mph. Some of the models are indicating winds could be that strong but the overall consensus seems to indicate winds gusting 60 to 70 mph.

Rainfall will be another issue. The cloud will increase this afternoon with heavy rain moving in from the West gradually during the late evening and overnight hours. Becoming heavy and persistent at times. The heavy rain will clear as we go into the afternoon and will be replaced by sunshine and showers these will be heavy at times. Models are indicating rainfall totals of 20 to 40 mm as indicated by the image below from the WX charts website and its the ECMWF model from 00z this morning,

Thank you for reading. I will do another forecast update later this evening with my full in depth forecast for Friday.

Please do NOT use Western Isles Weather for the protection of life and property please follow local and national government issued warnings and advice. Please have more than one source for weather information in extreme weather, Such as the Met Office and follow any advice and instructions from emergency responders.

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Thursdays forecast – Sunshine and cloud

Good evening Western Isles on this Wednesday evening we are seeing clear skies and cloud with some rain and drizzle but for most it’s dry. Winds under 20 mph and today’s high of 12.7C

Please do NOT use Western Isles Weather for the protection of life and property please follow local and national government issued warnings and advice. Please have more than one source for weather information in extreme weather, Such as the Met Office and follow any advice and instructions from emergency responders.

For Thursday we are going to see a slack pressure pattern which will result in a mostly settled day before fronts move in to end the day.

Overnight – Clear skies and cloud with a few scattered showers. Winds under 20 mph.

Morning and afternoon – Sunshine and cloud. Some decent spells of sunshine. A few isolated showers but for most, it will be dry. Winds under 20 mph

Evening – Clear skies and cloud which will build in from the West. Some rain moving in by late evening to the West. Winds of 10 to 30 mph.

Winds will be from the North shifting South West. Temps of 9C to 14C

Sunrise and Sunset

Stornoway – 07:24 and 19:06

South Uist – 07:28 and 19:10

Outlook

Friday – We will see heavy and persistent rain sweep across the islands overnight Thursday into Friday with stronger winds gusting 40 to 50 mph. Peaking between 7 am and 11 am with winds gusting 60 to 70 mph in some spots. No weather warning has been issued at this stage by the Met Office but regardless of a warning being issued these kind of wind speeds should be taken seriously. Along with a lot of surface water on the roads. Yes, we get strong winds of this speed every winter but this is the first of the season and will be at a busy time of the day for people. In to the afternoon and it will be rain and showers with winds easing gusting 40 mph. Winds will be from the South shifting South West by the afternoon and temps of 9C to 14C

Saturday and Sunday – Sunshine and showers with brisk winds gusting 20 to 40 mph. Temps of 9C to 13C

Monday and Tuesday – Heavy rain will move across the islands and once again winds will increase gusting 40 to 50 mph. Temps of 10C to 16C

Fridays 30th September Weather for the Western Isles and Tiree

Good afternoon and welcome to this blog taking a look at the potential for some severe weather on Friday. At the time of writing, no weather warnings have been issued and it would probably be borderline for a warning to be issued.

So the reason I am writing this is it could our first day of the Autumn with wind speeds in excess of 60 mph. We have seen the various forecast models showing winds gusting 50 to 60 mph for a few days across the Western Isles and Tiree. I have had a few people message asking questions about the windy weather for Friday so I thought I would break it down for you and what we are expecting so far. There is also the chance of some very heavy rainfall over a short period of time as well.

The Met Office has tweeted the following about Friday

So at this stage the winds will increase late Thursday night in Friday morning. The strongest winds are expected between 07:00 and 12:00 with wind speeds gusting 50 to 60 mph widely. Some gusts reaching 65/ 70 mph could be possible. Winds are expected to ease down during the afternoon and evening gusting 30 mph.

Below we have a chart from the UK Met Office UKV model from the Weather Outlook which highlights max wind gusts for 09:00 Friday morning. Please note this is one model run. The highest gust on here is 68 mph for the Western isles and 65 mph for Tiree

Now using the excellent Windy.com we can see that both the GFS and ECMWF models are showing strong winds for the islands on Friday morning.

Firstly the ECMWF is a bit more conservative with the strong winds with gusts of 55 to 60 mph.

The GFS on the other hand is on the stronger side with the UKV the Met Office model as mentioned above with winds gusting 60 to 70 mph.

Again is important to stress this is just a single model runs from each model but gives you an idea of the potential risk of strong winds.

With regards to rainfall both the GFS and ECMWF have similar rainfall totals. The 24 hour accumulation totals from the 6z model run from the GFS show up to 30 mm of rainfall falling for the Western Isles and 20/25 mm for Tiree from midnight Friday until Midnight Saturday. This is shown in the image below from WXcharts. This amount of rainfall has been the general census across the previous 4 model runs. With a slight uptick in expected rainfall amounts.

So it is looking like our first spells of Wet and windy weather for the season and the first 60 mph of the season. It’s nothing too unusual for us at this stage but I will keep you updated. I won’t do another blog on this tomorrow unless the Met Office issues a warning. I will however drop another blog on Thursday warning or note to give you the latest. It would be a good time to prep your garden and store any loose items and make sure you are well stocked for power cuts etc.

Please do NOT use Western Isles Weather / Tiree for the protection of life and property please follow local and national government issued warnings and advice. Please have more than one source for weather information in extreme weather, Such as the Met Office and follow any advice and instructions from emergency responders.

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Thanks for reading

Week ahead forecast for the Western Isles 25th September

Good afternoon Western Isles strengthening winds across the islands during with rain moving in. It’s to be a theme of the upcoming week’s weather and in this blog, I will give you a preview of the week’s weather. This will be supplemented with charts and graphics.

Great tweets from Gisueppe Petricca highlighting the front and and colder air.

Monday –

As highlighted by the Met Office surface pressure chart we are going to see a strong North Westerly airflow across the UK. We will see much colder airmass across the North of Scotland so it will feel much colder than of late. In the Western Isles we will see plenty of cloud with rain and showers. These heavy at times. Winds of 20 to 40 mph from the North West. Temps of 6C to 11C but it will feel colder in the wind chill.

Tuesday

So on Tuesday we are in a sandwich across the UK with high pressure across the Atlantic and low pressure moving down Southwards across the North sea which will keep the cooler air across Scotland. For us in the the Western Isles we are going to see rain and showers with plenty of cloud. Winds of 20 to 40 mph from the North West easing under 20 mph by the end of the day. Temps of 6C to 13C

Wednesday and Thursday

A little bit of uncertainty for the middle of next week. But pressure will increase and winds that dominated the early half of the week will ease. For us in the Western Isles we are going to see a mixture of sunshine and showers. Heavy at times. Winds under 20 mph from the North and North West shifting South West later in the day on Thursday. Temps of 8C to 14C

Friday and Saturday

There is a lot of uncertainty with the end of the week at the moment and the exact placement of the areas of low pressure and how strong winds will get but we are likely to see heavy rain and blustery winds. The strongest of the winds gusting 50 to possibly 60 mph. So either this weekend but more likely next weekend we could see our first 60 mph of the season. It will very much depend on low pressure systems. Both the main models the GFS and ECMWF show a deep area of low pressure moving across our islands and the GFS keeps it further North but the ECMWF has it further south keeping the worst of the winds to our South. But I am keeping an eye on it and will keep you updated.

Below is the ECMWF chart for Friday this is from the 00Z model run and is just one model run and not a forecast and comes from WX Charts

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Weekend forecast for the Western Isles 22nd September 2022

Good afternoon Western Isles and welcome to your weekend forecast for the Western Isles. In this blog, we examine each day for the next 4 days. We use, Tweets, Images or graphics to highlight the weather and at the end, we will take a look at the longer range forecast.

This Thursday we have seen the cold front clear away from the Western Isles with plenty of sunshine and a few scattered showers.

Friday

So from the Met Office surface Pressure chart below for Friday we can see the cold front way to the South East. High pressure building across the UK. The flow of air across the Western Isles will be from the West and North West and finally, you can see tropical Storm Gaston almost trapped by high pressure well to the South on this image.

For us in the Western Isles, it will be a similar feel to many days we saw last week. Sunshine and cloud with light winds. Feeling cool. We will also see some rain and showers these will be heavy in places. Winds under 20 mph from the West and North West. Temps of 8C to 14C

Saturday

We are expecting Saturday to be similar to Friday. Again we are on the periphery of the high pressure and we will see a day of sunshine and cloud. More cloud on Saturday than Friday. Scattered showers which will occasionally be heavy. Winds under 20 mph from the North West. Temps of 8C to 15C

Sunday

For Sunday high pressure declines away as highlighted on this Surface pressure chart from the Met Office below. A complex area of low pressure sits far to the North but its it will influence our weather on Sunday. Tight isobars and a cold front will bring wind and rain.

I am not expecting at this stage anything too severe from this system with a fairly dry start to the day with plenty of cloud. Heavy rain will move in during the afternoon and evening along with strengthening winds gusting 40 to 45 mph with some gusts reaching 50 mph in some exposed coastal areas. The rain will ease as the evening progresses but the strong winds will linger on into Monday.

Monday

We are going to see a colder feeling day with a colder airmass moving across the North of Scotland. Sunday’s low pressure upon exiting to the East we will see colder air coming down from the North.

There is some uncertainty yet but for us in the Western Isles, it’s going to be a day of sunshine and cloud with scattered showers. These heavy at times. I wouldn’t rule out some of them being wintry. Winds of 20 to 40 mph. Again a fair amount of uncertainty about how strong the winds get. The winds will be from the North and North West and Temps of 4C to 12C

The colder air is highlighted on this chart from the WX Charts website and is the ECMWF model run for Monday evening. Please note this is upper atmosphere temperature but gives you an idea of the colder airmass.

Long range – Looking further ahead into next week and the pattern really is high pressure to the South West of the UK. North Westerly winds for us with showers and longer spells of rain at times.

Have a great weekend and thanks for reading. You can support me and Western Isles weather here https://ko-fi.com/westernislesweather

Thursdays forecast – Sunshine and showers

Good evening Western Isles on this Wednesday evening we are seeing rain moving across the Western Isles this is heavy in places with plenty of cloud. Winds gusting 40 mph. The Met Office site at South Uist has recorded 23 mm of rain. Laxdale on Harris has recorded 33 mm since this morning.

Wednesday across our islands was a wet and blustery day. The top wind speed was 47 mph at the Met Office site in South Uist and the highest official rainfall total I have seen so far is 33 mm as mentioned above but there is a chance some locations recorded closer to 40 mm but that is just going off rainfall estimates on accumulation.

Thursday – The cold front clears away from the North West of the UK which in its wake we are going to see showery conditions. One thing to notice is tropical storm Gaston which is on the Surface pressure chart for Thursday. This won’t directly impact the UK as high pressure keeps it well south of the UK and it will meander around the North Atlantic.

Overnight – We are going to see heavy rain moving across the Western Isles. This will be heavy but clearing away as the night progress. Cloud will slowly break to a mixture of clear skies and cloud by sunrise. Winds of 10 to 30 mph.

Morning and afternoon – Some decent and prolonged sunshine. Variable amounts of cloud. Showers which will be heavy at times. Some parts will stay dry. Winds of 10 to 25 mph.

Evening – Sunshine and cloud with a few scattered showers. Clear skies after sunset. Winds of under 20 mph.

Winds will be from the West and temps of 8C to 16C

Sunrise and Sunset

Stornoway – 07:09 and 19:26

South Uist – 07:14 and 19:30

Outlook

Friday and Saturday – Sunshine and cloud. Scattered showers. Winds under 20 mph from the North West. Temps of 7C to 15C

Sunday – Dry start but rain moves in later in the day. Winds increasing gusting 40 to 50 mph. Temps of 8C to 15C

Monday – Feeling colour on Monday with rain and showers. There is a slight chance some of these could be wintry ( sleet) and yes its September. Winds will be from the North West around 20 to 40 mph with temps of 4C to 15C

Have a great evening

Tuesday’s forecast – Winds increasing

Good evening Western Isles on this Monday evening we are seeing plenty of cloud with some rain and showers and these are heavy in places. Winds under 20 mph and today’s high of 16.1C

Monday was another fairly dull day across the islands with some sunshine at times. Outbreaks of rain and drizzle but nothing too significant. Winds remained fairly light.

For Tuesday high pressure declines further away as it does weather fronts will move in from the Atlantic. We will see spells of rain and increasing rain.

Overnight – We are going to see a cloud dominated night with spells of rain and drizzle. Some heavier showers at times. Winds of 10 to 30 mph.

Morning and afternoon – Fairly overcast with spells of rain and drizzle. Heavy rain at times. Some sunny spells but mainly staying cloud. Winds of 10 to 30 mph.

Evening – Again plenty of cloud with some clear spells. Patchy rain and drizzle at times. Winds of 10 to 30 mph.

Winds will be from the South West. Temps of 12C to 16C

Sunrise and Sunset

Stornoway – 07:05 and 19:32

South Uist – 07:10 and 19:35

Outlook

Wednesday – Overcast with spells of rain and drizzle. Winds of 20 to 40 mph. Heavy and persistent rain to end the day. Winds gusting 50 mph by the end of the day from the South West. Temps of 12C to 16C

Thursday – Heavy and persistent overnight rain then sunshine and cloud with scattered showers Winds gusting 50 mph during the night. Winds easing under 20 mph during the day from the South West. Temps 11C to 15C

Friday and Saturday – Sunshine and cloud with a few scattered showers. But mainly dry. Winds under 20 mph and feeling cooler again. Winds will shift from the North West. Temps of 7C to 15C

The weekend and beyond – We are likely to see an area of low pressure bring rain and stronger winds for a time during Sunday possibly gusting 50 mph. Once that clears away it could bring down some much colder air from the North. Similar to what we saw end of last week but possibly lower temperatures. Something I am keeping an eye on.

Have a great evening

Monday’s forecast – Becoming milder

Good evening Western Isles on this Sunday evening we are seeing a mainly fine and dry end to the day with some light rain and drizzle. The cloud is dominating with some clear spells. Winds under 20 mph and today’s high of 14.3C

Sunday’s weather was dominated by cloud with low cloud at times. Further spells of rain and drizzle with the highest rainfall totals being a couple of mm. The rut pattern we have been in the last few days will become more mobile during the coming week. More on that below.

For Monday high pressure will gradually start to move away Eastwards allowing frontal systems to creep in from the West. A warm front is expected to move across the islands during the night on Monday and the start of the more mobile conditions.

Overnight – An overcast night with some clear spells. Winds under 20 mph, Some light rain and drizzle. Some heavier rain for Barra and South Uist.

Morning and afternoon – Overcast with light rain and drizzle at times. This will be heavy in places. For most, it will stay dry. Some sunny spells. Winds under 20 mph.

Overnight – A cloud dominated evening with some light rain and drizzle. Some sunny spells before sunset. Winds will start to increase 10 to 30 mph.

Winds will be from the South and South West. Temps of 12C to 16C

Sunrise and Sunset

Stornoway – 07:03 and 19:35

South Uist – 07:07 and 19:38

Outlook

Tuesday – An overcast day with spells of rain and drizzle. Winds of 10 to 30 mph from the South West. Temps of 12C to 16C

Wednesday – Showery with spells of heavy rain moving in during in the evening which could be persistent for a time. Winds of 20 to 40 mph gusting 50 mph. Temps of 12C to 16C

Thursday and Friday – Sunshine and showers these will be heavy at times. Winds will be from the South West and temps of 12C to 16C but turning Northerly late Friday

Have a great evening

Week ahead Weather for the Western Isles 18th September

Good afternoon in this blog we are going to take a look at the week ahead for the Western Isles as well as taking a look at the trends.

So the past week has been fairly settled across the Western Isles with a mixture of sunshine and cloud. Chilly and light winds.

Monday – We are going to see a largely cloud dominated day with some light rain and drizzle. Some sunshine at times. Winds will be under 20 mph but we will see a milder day then off later across the islands as milder air moves in. Temps reaching 16C

Tuesday – high pressure declines away further. We are going to see spells of rain heavy at times. Some showers. Winds will also increase gusting 20 to 30 mph from the South West with temps possibly reaching 17C

Wednesday – The computer models have been highlighting a wet day across our islands on Wednesday. This is highlighted by the chart below from WX charts highlighting the 24 hour rainfall totals from midnight Wednesday until Midnight Thursday

The heaviest of the rain we are expecting to see during the later afternoon and into the evening. Some places could see between 20 to 30 mm of rainfall. This will accompanied by strengthening winds gusting 40 to 45 mph I would not be surprised if we saw some places reaching 50 mph.

Thursday – We are expecting to see a day of sunshine and showers these will be heavy at times along with brisk winds gusting 20 to 40 mph. Some decent spells of sunshine in the breaks in the cloud.

Friday – High pressure builds back in from the West and once again we find ourselves in a North Westerly airflow with light winds along with sunshine and showers. Wind under 30 mph.

Next weekend – More of the same for Saturday with high pressure in charge, sunshine and cloud with rain and drizzle at times. Winds under 20 mph. Sunday an area of low pressure is expected to move in with spells of rain and showers heavy at times with winds gusting 40 mph.

For the last week of September, we are expecting high pressure to anchored off the South West of the UK bringing areas of low pressure across the Western Isles keeping conditions unsettled. Lots of uncertainty at this stage but I will keep you updated.

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Sundays forecast – Staying fairly cloudy

.

Good evening Western Isles on this Saturday evening we are seeing plenty of cloud with some rain and drizzle. Winds under 20 mph and todays high of 13.3C

Saturday was another dull and damp day in the islands. Plenty of cloud with some sunny spells. Barra was the driest and some parts of South Uist recorded 4 mm of rain. Its been feeling chilly as well.

For Sunday high pressure still holds on and couple of weakening weather fronts move across the UK. But a change is on the way.

Overnight – Plenty of cloud with spells of rain and drizzle. The rain will be heavy at times across Uist and Barra. Some clear skies. Winds under 20 mph.

Morning and afternoon – Overcast with some sunny spells at times. Some scattered showers with rain and drizzle for South Uist and Barra which will be slow to clear. Winds under 15 mph.

Evening – Plenty of cloud with some scattered showers. Plenty of cloud. Winds under 10 mph.

Winds will be from the North West shifting South East to end the day. Temps of 11C to 15C

Sunrise and Sunset

Stornoway – 07:01 and 19:38

South Uist – 07:05 and 19:41

Outlook

Monday – Changes for the start of the week. Turning milder. Plenty of cloud with some rain at times. Sunny spells. Winds of 10 to 25 mph from the South West. Temps of 11C to 17C

Tuesday and Wednesday – Overcast with rain and at times becoming heavy. Winds of 20 to 40 mph from the South West. Some heavy and persistent rain will move in during late Wednesday. Winds will be from the South West. Temps of 12C to 17C

Thursday – A wet night will clear to sunshine and showers. Some decent and prolonged sunshine a times. Winds will be from the South West. Temps of 10C to 16C

Have a great evening

Friday’s forecast – Sunshine and cloud with scattered showers

Good evening Western Isles on this Thursday evening we are seeing clear skies and cloud with some showers and heavy in places. Winds under 20 mph and today’s high of 13.9C

A day of mixture fortunes across the Western isles on Friday with 3.4 mm of rain at Stornoway and 4.3 hours of sunshine. Showers over the Uist and Barra this evening. Some parts of Harris got 6 mm of rain in the past 24 hours. It did feel noticeably cooler as well.

So Friday we are going to see high pressure strengthen across the Western Isles with the high centred to our West. As a result, we should see some single figure temperatures for the overnight low.

Overnight – Clear skies and cloud. Under clearing skies, we are going to see temps getting down to 5C in some spots but for Uist and Barra are expected to stay closer to 10C. A few showers and these will be heavy at times. Winds of 10 to 25 mph.

Morning and afternoon – Sunshine and cloud. Some decent and prolonged sunshine. A few showers again, but fairly scattered. Some of these will be heavy. Winds of 10 to 25 mph.

Evening – Sunshine and cloud with some clear skies after sunset. A few scattered showers but mainly dry. Winds under 20 mph.

Winds will be from the North and North West. Temps of 5C to 14C

Sunrise and Sunset

Stornoway – 06:56 and 19:43

South Uist – 07:01 and 19:47

Outlook

Saturday – We are going to see an overcast day with spells of rain and drizzle. Heavy at times. Winds of 10 to 30 mph from the North and North West. Temps of 10C to 14C

Sunday and Monday – Sunshine and cloud with scattered showers. Winds under 20 mph as high pressure continues to dominate. Winds will be from variable directions. Temps of 10C to 15C

Tuesday – Turning milder again. Plenty of cloud with some rain and drizzle. Winds of 10 to 30 mph from the South and South West. Temps of 10C to 17C

Looking further ahead into next week and we could see some heavier rainfall totals into the middle of next week. I will take a more detailed look at that tomorrow evening,

Have a great evening

Meteor over Scotland. 14th September

Good evening an bright meteor has been spotted across large parts of Scotland and Ireland this evening. Below is some of the stunning footage that has been captured.

The UK Meteor Network says that it was sighted at 21:00 but I think they were meant to say 22:00 as that was the time of most of the reports.

Glasgow

Belfast

Unfortunately I missed it and wasn’t outside at the time till about 10 mins later. Let me know in the comments below if you saw it

Thursday’s forecast – Feeling cool with rain

Good evening Western Isles on this Wednesday evening we are seeing a mixture of clear skies and cloud with some rain and drizzle. Winds gusting 20 mph and today’s high of 14.4C

So for Thursday, we see high pressure close to Iceland and low pressure over Scandinavia feeding colder air across the UK with winds coming down from the North and North West.

Overnight – Clear skies and cloud. Overnight low down to 7C but for most staying in double figures. Rain and showers these heavy at times. Winds of 10 to 20 mph.

Morning and afternoon – Sunshine and cloud with spells of rain and showers. Heavy in places. Feeling cool in the brisk winds. Some decent spells of sunshine in the breaks in the cloud. Winds of 10 to 25 mph.

Evening – Sunshine and cloud before sunset. Showers again heavy at times. Clear skies and cloud after sunset. Winds of 10 to 35 mph.

Winds will be from the North and North West. Temps of 7C to 14C

Sunrise and Sunset

Stornoway – 06:54 and 19:46

South Uist – 06:59 and 19:49

Outlook

Friday – Another chilly day with cooler air as winds come down from the North. Sunshine and cloud. We will see showers on Friday but they are expected to fade but that will very much depend on the position of the high pressure to our West. Winds of 10 to 30 mph. Temps of 7C to 14C

Saturday – Little change we are expecting to see an overcast with day with winds coming from the North West with winds from North West. Spells of rain and drizzle. Temps of 9C to 14C

Sunday – We are expecting to see high pressure to build back in across our islands. As it does winds will ease back under 20 mph. Some morning showers then sunshine and cloud. Winds will become more variable under 20 mph. Temps of 10C to 15C

Monday – High pressure looks set to dominate the start of the new week. With light winds but plenty of cloud. Winds from variable directions and temps of 12C to 16C

Long range trends – Tend to keep us on the edge of high pressure with some dry days but also spells of rain and drizzle and a lot of cloud as we move towards the end of September.

Have a great evening

Wednesday 14th September forecast for the Western Isles

Good evening Western Isles on this Tuesday evening we are seeing a mixture of clear skies and cloud. Some drizzle and low cloud. Winds under 20 mph. Today’s high of 14.3C

As high pressure dominates across the Western Isles weather conditions are fairly settled at the moment and not too much to report on with today’s weather. Certainly worth making the most of as things will eventually change as autumn progresses.

Wednesday – forecast for the Western Isles and general synopsis.

High pressure still sits out to the West of Scotland on Wednesday. We will see a North Westerly airflow across our islands. A few things to note on this chart is the broad area of low pressure at 993 mb was hurricane Earl and continues to swirl around mid Atlantic. Off the coast of Portugal there is another area of low pressure and this was at one stage hurricane Danielle. We are currently at the peak of hurricane season and these systems can have an influence on our weather so I do like to keep an eye on these systems. You can see all of the above on the pressure chart below.

Overnight – Plenty of cloud with spells of rain and drizzle. Heavy at times. Some low cloud in places. Winds under 20 mph.

Morning and afternoon – Sunshine and cloud. Some decent spells of sunshine. Some lingering drizzle will clear. A few scattered showers. Winds under 20 mph.

Evening – Sunshine and cloud before sunset with scattered showers. These occasionally heavy at times. Winds under 20 mph.

Winds will be from the West and North West. Temps of 8C to 15C

Sunrise and Sunset

Stornoway – 06:52 and 19:49

South Uist – 06:57 and 19:52

Outlook

As we move towards the end of the week and the weekend things will turn cooler. This is highlighted by the chart below from the upper atmosphere which highlights the cooler air. This is not ground level temperature but the blues indicated cooler air. The image comes from WX charts and is the 12Z ECMWF model run.

Thursday – Sunshine and showers. These heavy at times. Winds of 10 to 25 mph from the North West. Temps of 8C to 15C cooler in the early morning and late evenings.

Friday – Overcast with scattered showers. Feeling cool in the Northerly winds. Temps of 7C to 14C

Saturday – Overcast with some rain and showers. Winds of 10 to 25 mph. Temps of 9C to 15C

Sunday – Sunshine and cloud. A few scattered showers but mostly dry. Winds under 20 mph. Again from the North West. Temps of 9C to 15C

Longe range – Looking longer range and we are likely to see a fairly high pressure dominated end to the month. We will still see spells of rain at times. But looks mainly settled. Of course, things will change and I will keep you updated.

Have a great evening

Tuesday 13th September forecast for the Western Isles

Good evening Western isles on this Monday evening we are seeing plenty of cloud with some rain and drizzle. Low cloud with some clear skies. Winds gusting 30 mph. Today’s high of 15.3C

We had some thunderstorm activity across North Lewis this morning and was picked up by Netweather lightning dector as highlighted below.

Tuesday

For Tuesday across Scotland high pressure is expected to build in further but a weather front is expected to move in later in the day. We are still under a North Westerly wind. This is highlighted by the Met Office surface pressure chart below.

Overnight – A cloud dominating night with some rain and drizzle. Plenty of cloud. With some clear spells. Winds of 10 to 30 mph.

Morning and afternoon – Sunshine and cloud with some rain and showers. Fairly well scattered with some drizzle at times. Some decent and prolonged sunshine at times. Winds of 10 to 25 mph.

Evening – The cloud will increase across the Western Isles with some rain and drizzle. Some sunshine before sunset. Winds under 20 mph.

Winds will be from the West and North West. Temps of 8C to 15C

Sunrise and Sunset

Stornoway – 06:50 and 19:52

South Uist – 06:55 and 19:55

Outlook

Wednesday and Thursday – Sunshine and cloud with a few scattered showers. Slowly turning cooler towards the end of Thursday. Winds of 10 to 30 mph. Temps of 9C to 15C

BBC Weather has highlighted how things will turn cooler then average on Friday

Friday – A mixture of sunshine and cloud with light winds from the North. Feeling cool and temps of 7C to 14C

Saturday – Sunshine and showers heavy at times. Winds under 20 mph from the North West. Temps of 8C to 15C

Have a great evening

Monday 12th September forecast for the Western Isles

Good evening Western Isles and we are back with our daily forecasts for the islands. You can find daily in depth forecasts on our Western Isles Weather blog. We have twice daily updates on our Facebook page and Twitter usually in the morning and the evening. Our morning briefing is shared on our Instagram page.

We will once again this autumn and winter be guiding you across all the severe weather across the islands and updating you with all the latest warnings and severe weather updates.

Back to this evening. We are seeing plenty of cloud across the Western Isles with some rain and drizzle. This is heavy in places. Winds gusting 30 mph and today’s high of 16.2C

Monday

On the surface pressure chart below from the Met Office, we can see low pressure has moved across the island on Monday with weather fronts bringing the unsettled weather on Sunday and again on Monday. To the far South West, a broad area of low pressure is the leftovers of former hurricane Earl. High pressure will keep that system away from the UK

Overnight – Sunday into Monday will see further heavy rain and this will clear away as the night goes on to a mixture of clear skies and cloud then scattered showers. Winds of 10 to 30 mph.

Morning and afternoon – Some decent and prolonged spells of sunshine at times. Further showers heavy at times and at times in the late morning and afternoon we will see some longer spells of rain at times. Winds of 20 to 40 mph.

Evening – The heaviest of the rain will clear away from the islands. For most, it will be a drier end to the day with a few scattered showers. Some decent and prolonged sunshine before sunset. Winds of 20 to 40 mph.

Winds will be from the North West. Temps of 11C to 15C

Sunrise and Sunset

Stornoway – 06:48 and 19:55

South Uist – 06:53 and 19:58

Outlook

High pressure is expected to build back in as we move into the middle of the week. But it isn’t likely to be as warm as we saw for the first full week of September.

Tuesday – Sunshine and cloud. A few scattered showers. The best of the sunshine will be in the morning. Winds under 20 mph from the North West. Temps of 11C to 15C

Wednesday and Thursday – More of the same really. A mixture of sunshine and cloud with a few scattered showers. These will be heavy at times. Winds of 10 to 30 mph. Temps of 9C to 15C

Friday – We will see a cooler day with a mixture of sunshine and cloud. Scattered showers. Winds will be from the North and North West. Temps of 8C to 13C

This is highlighted in this chart from the GFS for next Friday from WX Charts which shows the cooler air moving across Northern Scotland. Daytime lows down to 8C and I wouldn’t be surprised if we saw lower overnight lows. I will keep you updated.

Next weekend – A long way off as yet but looking like a fairly settled weekend with plenty of cloud and turning milder towards the end of the weekend with temps back into the mid teens.

Thanks for reading and for your continued support.

Met Office yellow weather warning for Tiree and Flood alerts for Tiree and Western Isles.

Good evening all. We are going to take a look at the rainfall warning and flood alerts for our islands this weekend. The full warnings and latest updates on all this can be found via the Met Office website or the Scottish Environment Protection Agency website.

Earlier today the Met Office issued a yellow weather warning for rainfall for Tiree on Saturday. The warning comes into force at 00:00 Saturday morning and expires at 23:59 Sunday evening.




The full warning and latest updates can be found below.

https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings#?date=2022-09-02

Below are the two flood alerts for Tiree and the Western Isles from the Scottish Environment Protection Agency.

Tiree

Western Isles

The latest can be found here from SEPA https://floodline.sepa.org.uk/floodupdates/

Please do NOT use Western Isles Weather / Tiree Weather for the protection of life and property please follow local and national government issued warnings and advice. Please have more than one source for weather information in extreme weather, Such as the Met Office and follow any advice and instructions from emergency responders.