ASTRONOMY WEATHER FORECAST
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London

This forecast is updated at 7am, 1pm and 7pm

Issued by Weather Consultancy Services on:
Wednesday 26 February 2020 18:00 hrs
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UK & Ireland Weather Summary for Wednesday
An area of low pressure wil be passing east through the English Channel early on Thursday morning, clearing into the Low Countries in the afternoon. A weak ridge builds behind the low. A complex area of low pressure is north of Scotland.


Forecast for astronomy in London for the next 5-days
Data based on GFS model updated: Wed 26 February 2020 18:00
Time SFC Wind Rain * Total cloud Low cloud Med cloud High cloud Temp Sfc RH Pressure Seeing Clarity
6pm WednesdayW 5g21mph0.4mm49%49%0%0%6C56%1007mb23
9pm WednesdaySW 5g17mph0mm96%0%63%63%5C58%1008mb30
00:01am ThursdaySW 4g16mph0mm98%0%81%81%4C66%1006mb20
3am ThursdayS 3g17mph0mm100%66%100%100%4C67%1002mb20
6am ThursdayNE 1g11mph2mm100%83%100%100%4C93%998mb00
9am ThursdayNW 5g3mph3.1mm100%100%100%100%4C92%994mb40
Midday ThursdayNW 9g23mph3.9mm100%100%93%93%3C93%998mb40
6pm ThursdayW 7g23mph0.1mm74%74%17%17%5C60%1007mb32
00:01am FridaySW 4g17mph0mm0%0%0%0%3C67%1014mb35
6am FridayS 5g15mph0mm84%0%55%55%3C67%1013mb41
Midday FridayS 10g30mph2.4mm100%82%99%99%4C91%1007mb40
00:01am SaturdayS 10g38mph0.5mm100%100%87%87%10C82%994mb30
Midday SaturdaySW 14g40mph6.1mm100%96%100%100%8C47%983mb40
00:01am SundayW 24g50mph0.4mm100%83%99%99%6C70%982mb40
Midday SundayW 16g34mph0.4mm43%42%17%17%7C48%992mb43
00:01am MondaySW 3g16mph0mm0%0%0%0%4C67%995mb15
Midday MondayNW 6g17mph0.8mm100%100%33%33%3C90%994mbN/A0
00:01am TuesdayW 6g19mph0mm0%0%0%0%3C76%1006mb45
[* rainfall is previous 6-hours. Gusts are over open ground.]


Planning outlook:
Tuesday low pressure and a cold front will move south across England and Wales with high pressure north west of Scotland. A colder day as rain and snow spreads south. Mainly dry in the channel with sunny spells. Visibilities will be good in the channel but moderate to poor elsewhere in rain and snow.
Wednesday a cell of high pressure is centered west of Ireland and will be ridging east. A cold, windy day with sunny spells and scattered showers of rain and snow. Visibilities will be good but moderate in rain showers, poor in snow showers.
Thursday sees high pressure centred south of Ireland and this will give much of the country a dry, settled, day with sunny spells. Visibilities will be good.
Friday a cold front spreads rain down across Scotland, the Irish Sea and northern England. Fair and dry in the south and in the channel with varying cloud and sunny spells. Visibilities will be good in the south and in the channel, but falling to moderate or locally poor as the rain sets in across the north.
Saturday high pressure to the west of Britain is ridging into Scotland with a front into the far north west. Most areas will be fair and dry with sunny spells today after some patchy mist clears. Visibilities will be good but moderate at first.
Sunday a front moves south east across Britain. Outbreaks of rain will clear western areas in the afternoon. Visibilities will be moderate improving to good as the front clears.



Synoptic charts based on data from 0001 GMT, Wednesday 26 February 2020 (Updated daily by 9am)
Tomorrow (Day 2)

Day after tomorrow (Day 3)

This forecast is for planning purposes only.
Forecast is copyright Weather Consultancy Services.