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

Issued by Weather Consultancy Services on:
Wednesday 29 November 2023 18:00 hrs
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UK & Ireland Weather Summary for Wednesday
An area of low pressure will rack east along northern France on Thursday. Fronts associated with the low pressure will afect southern England. An occluded front extends from eastern Scotland to northeast England. The flow remains a generally cold northeasterly.

Forecast for astronomy in London for the next 5-days
Data based on GFS model updated: Wed 29 November 2023 18:00
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Time SFC Wind Rain * Total cloud Low cloud Med cloud High cloud Temp Sfc RH Pressure Seeing Clarity
6am WednesdayNW 2g12mph0.1mm92.9%67.8%5%5%3C90%1006mb21
9am WednesdayN/A 1g4mph0mm100%40.9%100%100%3C83%1006mb10
Midday WednesdayNE 2g5mph0mm100%23.5%35.3%35.3%4C71%1005mb40
3pm WednesdayE 2g4mph0mm96.7%5%96.7%96.7%4C66%1005mb40
6pm WednesdayE 2g8mph0mm99.5%5%56.5%56.5%3C76%1005mbN/A0
9pm WednesdayNE 2g9mph0mm100%5%100%100%2C79%1005mb40
00:01am ThursdayNE 3g14mph0mm59.8%5%59.8%59.8%1C84%1004mb33
6am ThursdayNE 6g24mph0mm97.1%95.5%75.5%75.5%2C80%1003mb40
Midday ThursdayNE 8g20mph0.5mm100%100%71.9%71.9%3C89%1004mb40
6pm ThursdayNE 4g24mph0.5mm5%5%0%0%3C75%1005mb25
00:01am FridayNW 3g19mph0mm1.2%1.2%0%0%1C70%1006mb25
Midday FridayN 4g17mph0.1mm80.2%80.2%0%0%4C70%1008mb31
Midday SaturdaySW 2g12mph0mm100%41.8%100%100%3C68%1015mb00
00:00am SundaySW 3g5mph0mm5%5%0%0%1C92%1015mb45
Midday SundayW 4g10mph0mm5%5%5%5%4C72%1016mb45
00:00am MondayW 0g2mph0mm5%5%0%0%1C87%1017mb 45
Midday MondayE 1g4mph0mm4.5%4.5%0%0%3C74%1018mb45
[* 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 29 November 2023 (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.