Weekend Weather Forecast 29/4/10

Forecasts and WeatherWebTV news from our resident weather guru Simon Keeling

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Weekend Weather Forecast 29/4/10

Postby weatherman » Thu Apr 29, 2010 9:50 am

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Air masses, winds, fronts and clouds are all covered.
See sample videos online at http://www.weatherweb.net/weatherwhys.htm
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Hello again,

Thanks to those of you who have been trying the webinars this week. They’ve proved very popular and so I hope to be running them as a regular feature for forecasting and training. I’ll keep you informed. You can also join the Weather School Facebook Group at http://www.facebook.com/#!/group.php?gid=234180618785 and I’ll update through here too.

If you want to be able to spot those illusive weather windows, you need my Weather Whys DVD. Many of you have already bought it, but if you haven’t you can view samples for free online, and order it from http://www.weatherweb.net/weatherwhys.htm

Onto the weekend forecast, and if you know anyone who’d like to receive this email each week just tell them to send a request to join to

Have a good weekend,

Issued: 1100 Thursday 29th April 2010

A complex area of low pressure is dominating the weather through today. The low extends through Ireland, northern Wales and central England, and will be drifting southwards through the day. Associated with it is an occluded front, this too moving slowly southwards. The exact position of the front is somewhat doubtful at the present time.
To the south of the front there will be broken cloud, but also some showers developing. An odd one of these will be heavy, but generally they should be fairly well scattered.
Along the line of the front it will be an band of cloud and outbreaks of rain. The rain tending to be light to moderate in intensity, with some cloud shrouding the hills.
To the north of the front will be drier, but breezier and cooler conditions with the cloud becoming broken again and some sunny spells developing.
Winds to the south of the low will be mainly W 12-17kt (F4-F5), becoming variable 4-8kt (F2-F3) close to the low. As the low clears the winds turn to the NE 15-22kt (F5-F6).


The fronts clearing south on Sunday with a brisk northeast flow across all parts of the country, although an area of moist air dominates conditions across central and southern England. A ridge of high pressure builds through Scotland, Northern Ireland and northern England.
The potential for a wet day over the Midlands, East Anglia and southeast England today. Rain could be on and off throughout, with East Anglia and the southeast especially prone to this.
Further west there will be cloud and showers, although these tending to fade as the day progresses and the ridge of high pressure builds in.
The ridge across Scotland brings better weather here, especially to the west. More eastern areas may well have showers, a few of them heavy.
Winds mainly NE 14-18kt (F4-F5) but 22-29kt (F6-F7) at times on the coasts of northeast England and East Anglia.
Lighter winds for central and western Scotland being N 10-14kt (F3-F4)


By Monday a ridge of high pressure is building back over the country, as the main centred of the high is retained to the west of Ireland. A weak warm front brushes across northern Scotland, clearing southeast through the day.
There will probably still be some residual rain or showers affecting East Anglia and the far southeast of England early on Monday, this clearing by afternoon.
Elsewhere across most of England, Wales, Ireland and Scotland the morning should be fair with sunny spells. Clouds will be developing, although this remaining well broken.
Only northern Scotland is likely to be seeing more cloud as the cold front brushes through bringing the threat of some patchy rain here. There is a low risk of shower on western coasts of Scotland too.
Winds will be mainly NE 14-18kt (F4-F5) perhaps 20-28kt (F6-F7) across the far southeast of England at first, becoming mainly NW 12-15kt (F3-F4) across Northern Ireland and Scotland as the ridge builds in.


Simon Keeling, PhD MSc, FRMetS
My new book The Pocket Weather Forecaster is out now. Read sample pages here.

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