Tuesday 6th Sept - Storms, high winds and rain

[coldfingers]

CHIMET showing gusts up to 50 knot at around 7:35am, 50 knot = 57.53 mph

http://www.chimet.co.uk/%28S%28vj1fyzzmqlyi1grqa0qntfr2%29%29/wind.aspx

Certainly extremely gusty at the moment (F8 gusting F9) and very heavy rain.

Edited September 6, 2011 by coldfingers

[The Melting Snowman in Guernsey]

Steady F5 here in Guernsey. I'm more inteterested in 'Katia' next weekend !!

[weatherobsuk]

Just had what was no doubt the back-edge CF going over marked by a brief squall-line crossing over. NW seems to be down for the past hour so relying on visual obs and the backup Met Office site & raintoday. I expect from now on anyway it'll be the wind gradient from the low pressure situated to the North as it travels NorthEastwards is whats to be looking out for into the afternoon, with convective showers possible by early evening. Sheltered here behind the 410m asl Eastern facing slopes of the Moor so not getting the wind gusts many others are reporting.

[Staffordshire]

Looks like the wind will pick up this evening here.

[Coast]

Wind speeds gradually increasing from the IOW to the Eastern end of the Channel:

Sandown Pier

Folkestone

http://www.channelco...me_data/charts/

Shoreham Beach

http://www.shorehamb...ehamWeather.htm

[Lancashire Lass]

Not too bad here. Blustery and about 10mm of rain since midnight.

[coldfingers]

Wind speeds gradually increasing from the IOW to the Eastern end of the Channel:

I can certainly concur with that Coast. Here in Bognor we now have a Gale 8 gusting up to Gale 10. Getting very stormy indeed out there with the heavy rain as well. Certainly the type of weather that can spawn tornadoes down here. I should be going to the Post Office but will delay it until around 3:00pm as it seems a bit scary at the moment with those high gusts.

Edited September 6, 2011 by coldfingers

[Lynxus]

Very heavy shower here.

Winds have died down over the last hour though..

Im flying blind!!! No sat images, no radars... What are they hiding from us!

[Staffordshire]

Meto radar is okay?

Very heavy shower here.

Winds have died down over the last hour though..

Im flying blind!!! No sat images, no radars... What are they hiding from us!

[weatherobsuk]

Very heavy shower here.

Winds have died down over the last hour though..

Im flying blind!!! No sat images, no radars... What are they hiding from us!

Damn your right. Met Office Radar & xcweather is the only update out there so far. everything else is either down or intermittent, and its all relayed through the Met Office so I fail to see what the issue is..weird.

[Aaron]

Raintoday radar is seriously lagging.. it's just jumped from 5:54 am to 8:30!

[loopydreamer]

im actually quite confused about whats happening right now! im trying to figure out if my area has had the worst of the winds or if im reading this all wrong??

[Team Jo]

Blown down trees on the line are delaying trains Fareham-Southampton. Raining sideways hard with the wind.

[Lauren]

Windy and rainy here. Can't say it's especially windy and rainy, though I hear it will get worse later.

Only 1.5mm of rain so far.

Edited September 6, 2011 by Lauren

[loopydreamer]

Raintoday radar is seriously lagging.. it's just jumped from 5:54 am to 8:30!

i know lol! meto radar is the only one working right now i think!

[Liam J]

Winds are increasing further in the NW now as the depression is moving eastwards.

[loopydreamer]

crap! forgot to get my clothes pegs in! they have gone flying all over the garden

[Staffordshire]

Wind is definately picking up here!!!!

[loopydreamer]

Windy and rainy here. Can't say it's especially windy and rainy, though I hear it will get worse later.

Only 1.5mm of rain so far.

well its suddenly got a bit crazy here in the last 10 mins! increase in heavy gusts here!

[Aaron]

Not overly windy here but it's suppose to get windier later in the afternoon.. just a bit cold right now!

[Stuart]

Last Updated: 18:41 Monday, 5th September 2011

Valid: 00:00 Tuesday, 6th September 2011 - 23:59 Tuesday, 6th September 2011

Scotland, Northern England and Ireland

Central, Southern and SE England

Synopsis:An occluded, but vigorous, low pressure system is forecast to become located across the north of Scotland during the course of Tuesday, bringing a highly cyclonic environment to all areas of the UK. An active frontal zone associated with the low pressure is forecast to gradually clear away to the south and east during the day, with then many areas experiencing a cool and convective west or north-westerly air mass. It should be noted that whilst not directly convective related, wind gusts of up to 50mph to 60mph are possible across exposed areas of the north and west of the UK through Tuesday.

Discussion:

The primary area for convective activity on Tuesday is across many areas of Scotland, Northern England and Ireland. A showery and convective post-frontal air mass is expected across these areas during the day and forecast atmospheric soundings signal that despite depressed surface temperatures a completely unstable atmosphere is forecast with temperatures of around 13C or 14C or higher.

At the moment a general 300 to 400j/kg of SBCAPE is forecast with LI values generally ranging between -1 or -2. Frequent moderate or heavy showers are forecast to develop during the day within the unstable air mass and given cloud tops up to 15 to 18,000ft there is a slight risk of thunderstorms anywhere within the highlighted region during tomorrow. The wrap around occlusion associated with the surface low pressure may well bring more extensive frontal cloud and prohibit convection across Scotland, but away from this area a convective day is expected. With some significant DLS (0-6KM 20KT to 40KT) particularly across Ireland and Northern England then some cells may well become quite organised and produce a risk of some torrential downpours, hail and lightning. A general lack of helicity across the northern half of the country signals little risk of any funnel or tornadic activity and the showers will soon quickly move through as well given strong low and mid-level wind speeds.

The secondary risk zone is associated with the surface frontal zone as it moves across parts of Central, Southern and South-east England. I have highlighted this zone simply because of the thermodynamics evident tomorrow in association with what is likely to be quite an active frontal zone. The cold front could well be a focal point for funnel clouds and perhaps an isolated tornado as well, but it should be stressed that these situations are extremely difficult to forecast and nothing more than highlighting the risk can be achieved. What is highly impressive however is the amount of DLS across the frontal zone with 0-6KM wind speeds ranging between 50KT and 70KT which is extreme and there is also forecast to be quite a significant amount of helicity (200-250m2/s2) in direct association with the surface front as well, with the potential for sharp changes in wind direction within the lower layers of the atmosphere within a relatively short time period. Given the extreme variables present, the area has been given a slight risk for the threat of some heavy precipitation in association with the frontal zone itself and also the risk of funnel clouds, perhaps a tornado and some all round very gusty winds in association with the surface front.

http://www.ukasf.co.uk/storm-forecasts/95

[Backtrack]

Not much here, was very blustery earlier from a squally shower, but nothing over 35mph yet.

[Lauren]

well its suddenly got a bit crazy here in the last 10 mins! increase in heavy gusts here!

Tru dat.

[coldfingers]

Lots of rattling and banging going on outside now and looking out my back window I can see a HUGE branch (1/4 of the tree) of a very large Chestnut Tree down into a neighbours garden.

Poor old lady, it will cost her to get that removed, still at least it missed the house.

Edited September 6, 2011 by coldfingers

[NO LONGER POSTING]

Tru dat.

Ill third this..Wow this is crazyyyy storm!!