Weather Watch 15th November 2021

Welcome to our Monday’s Weather Watch taking a look at the weather for the Western Isles and the UK in detail for the next 3 days.

On this Monday evening, we are seeing an overcast evening with some clear skies. Rain slowly edging in from the West. Winds gusting 30 to 40 mph. Todays high so far of 10.8C

Now we are going to look at a series of weather charts and model data for the next 3 days.

Tuesday – On Tuesday weather fronts sweep across the UK with tight isobars we are going to see a fairly windy day. Nothing too significant. For us in the Western Isles spells of rain will move across the islands during the night into Tuesday morning where will see longer spells of heavy rain for the morning and afternoon becoming persistent for a time before clearing to showers later in the day with clear skies and cloud. Winds of 20 to 40 mph gusting 50 mph during the morning. Some coastal gusts reaching 60 mph. Winds will be from the West and South West. Temps of 5C to 11C

Surface pressure - Forecast chart

Below we have the 03Z model run of the UKV model showing winds gusting widely 50 with some gusts reaching 60 mph.

Chart image

Wednesday – High pressure across the far South of the UK and a brisk airflow further North. For us in the Western Isles, we are going to see an overcast day with occasional sunny spells. Showery morning squally at times wintry. Winds of gusting 40 to 50 mph. Showers easing down for a time before more rain moves in later into the evening. Winds will gradually ease under 20 mph by the end of the day. Winds will be the West and South West. Temps of 7C to 11C

Surface pressure - Forecast chart

Thursday – Low pressure between the UK and Iceland with weather fronts moving across Northern Scotland. Another overcast day with further spells of rain heavy at times. At this stage, the heaviest of the rain is expected across Lewis and Harris but will all depend on the position of the weather fronts. Winds of 20 to 40 mph gusting 50 mph at times during the evening. Winds will be from the West and South West. Temps of 9C to 13C

Surface pressure - Forecast chart

Thanks for reading any feedback is welcome.

Links to the charts used https://www.metoffice.gov.uk/weather/maps-and-charts/surface-pressure and https://www.theweatheroutlook.com/twodata/ukv.aspx?run=03&charthour=43&chartname=gust_wind&chartregion=uk-region&charttag=Wind%20gust%20mph

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