SKYWARN UK SEVERE WEATHER WATCH #030 ISSUED: 2200UTC SUNDAY 4TH AUGUST 2013 SKYWARN UK FORECASTS THE POTENTIAL FOR SEVERE WEATHER AS FOLLOWS: HEAVY RAIN LEADING TO A RISK OF LOCALISED FLOODING - WALES, MIDLANDS, NORTHERN & SOUTHWEST ENGLAND IN EFFECT FROM 2200UTC SUNDAY 4TH UNTIL 2100UTC MONDAY 5TH AUGUST 2013 LOW DEVELOPING ALONG A SATURATED FRONTAL BOUNDARY, GENERATING HEAVY AND PERSISTENT RAINFALL DISCUSSION: THERE IS STRONG MODEL AND SATELLITE DATA TO SUGGEST A SEVERE WEATHER RISK THROUGH THE NEXT 24HRS. A LOW FORMING IN THE SW APPROACHES WILL BEGIN TO FOCUS PRECIPITATION ALONG FRONTAL BOUNDARIES ACROSS NORTHERN ENGLAND OVERNIGHT, WITH AN OCCLUDED FRONT AFFECTING HERE AND THE MIDLANDS DURING MONDAY. OVER THE SOUTHWEST AND WALES, THE FORMATION OF A COLD FRONT WILL ADD HEAVY AND POSSIBLY CONVECTIVELY ENHANCED PRECIPITATION TO AREAS THAT HAVE ALREADY AND WILL CONTINUE TO SEE PERSISTENT LIGHT TO MODERATE RAIN RATES. STRONGER WINDS DEVELOPING AHEAD OF THIS DURING THE EARLY HOURS MAY ALSO SERVE TO ENHANCE ACCUMULATIONS OVER HIGH GROUND. FLASH FLOODING AND EXCESS SURFACE WATER MAY BECOME RISKS OVER THE WHOLE WATCH AREA, WHILE RIVER FLOODING IS ALSO POSSIBLE AROUND THE SOUTHWEST. THIS WATCH MAY BE UPGRADED. PLEASE MONITOR WEATHER AND TRAVEL INFO AS NECESSARY. SPOTTER ACTIVATION IS REQUESTED AND SPOTTERS ARE REQUESTED TO REPORT ALL FACTORS EXCEEDING ACTIVATION CRITERIA.
Posted on: Mon, 05 Aug 2013 11:22:29 +0000
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