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Tornado Risk - S. Britain - Wed Sept 2nd

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martinastro
Martin Mc Kenna
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« on: September 02, 2009, 06:43:37 pm »

UKww Weather Watch Heavy Rain & Gales

Valid from: 1800z Weds 2nd - 1800Z Thurs 3rd September 2009;

Areas affected:  England, Wales Weds-Thurs am then N England/Scotland thereafter

General evolution: Humid, moist air associated with the remnants of Tropical Storm Danny is caught up in an Atlantic depression with a rather southerly track (centered 992 mb Cork at 1600 BST; tracking NE and deepening 988 mb, just off Tyneside, by 0600 Thursday).


Forecast: Rain already into parts of Wales and SW England continues and extends N and E overnight, with heavy and prolonged bouts, risk local thunder and strong gusty winds. Totals of 25-40 mm (50+ over hill country) enough to cause poor driving condituions and local flooding with rivers already high this week in many areas. Gales along the south coast tonight into tomorrow, easing towards midday, with gusts over 60 mph possible especially from the Isle of Wight eastwards - enough to cause tree damage given full leaf and wet ground as added factors. The heaviest rain moves NE into Thursday to give Scotland in particular a very wet day (again 50 mm+ over hill country) before it clears into the North Sea towards the end of the forecast period.

In such situations two links are useful to monitor developing conditions (as well as reports here on UKww):
Met Office Rainfall Radar: HERE

Environment Agency Flood/Severe Flood Warnings: HERE 



UKww will monitor this Warning and update it if necessary.

Issued by JSM for UKww, 1750Z  02/09/2009

The user assumes the entire risk related to its use of this data. UKww (UK Weatherworld) is providing this data "as is" and UKww disclaims any and all warranties, whether express or implied, including (without limitation) any implied warranties of merchantability or fitness for a particular purpose. In no event will UKww be liable to you or to any third party for any direct, indirect, incidental, consequential, special or exemplary damages or lost profit resulting from any use or misuse of this data.

The UKww Warnings Team use Net Weather Extra when compiling forecasts.
-----
www.geologywales.co.uk/storms
Director, TORRO Extreme Rainfall Events Division
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