Hello and welcome all to this blog post talking about the Met Office snow and ice warning issued for Wednesday into Thursday. In this blog we cover the warning and look at the possible impacts for the Western Isles in the coming days.
Snow is inherently difficult to forecast and one of my least favorite forecasts I do. In a blog post I wrote last month it explains the complexities of forecasting snow in the UK. This can be found here https://westernislesweather.com/2020/11/22/lets-it-snow/
A great explanation from the Met Office about why its so hard to forecast snow
So the Met Office has issued a yellow weather warning for both Snow and Ice for Wednesday into Thursday the warning comes into force at 1800 Wednesday evening and expires at 1200 Thursday afternoon.
The full warning and latest updates can be found here https://www.metoffice.gov.uk/weather/warnings-and-advice/uk-warnings#?date=2020-12-02&id=d589b817-2359-491b-ad67-a0af5ea814f6&details
Impacts for the Western Isles
So we are going to see rain, sleet and snow over the coming days with wintry showers starting early tomorrow before the warning kicks in. The greatest risks for accumulated snowfall do appear to be over higher ground. We are going to see some snow to lower levels with the greatest risk as mentioned by the Met Office being overnight Wednesday into Thursday. We could see 2cm to lower levels. Wintry showers and colder temperatures are expected to persist into Friday.
Not all places will see snow. It will be quite wet snow so this will again reduce the risk of staying around too long. Again there is quite a bit of uncertainty. Temps will drop close to or below freezing across the Western Isles so there will be additional hazards from frost and ice. Again there is an ice warning in force. Winds gusting 20 to 30 mph whilst not particularly strong will make it feel chilly in the wind chill.
This here is the council gritting times list here https://www.cne-siar.gov.uk/roads-travel-and-parking/roads-maintenance-winter-gritting/road-gritting-priorities/
My full forecast for Wednesday will be online later this evening.
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.
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