...THERE IS A MDT RISK OF SVR TSTMS ACROSS PORTIONS OF AL AND ERN MS... ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS A LARGE PORTION OF THE ERN U.S. E OF THE MS VALLEY... ...SUMMARY... WIDESPREAD THUNDERSTORMS ARE FORECAST ACROSS THE CENTRAL GULF COAST REGION...WITH SEVERAL SEVERE/SUPERCELL STORMS POSSIBLE -- ALONG WITH ATTENDANT RISK FOR HAIL...DAMAGING WINDS...AND TORNADOES. STRONG/SEVERE STORMS ARE ALSO EXPECTED ACROSS SOUTHERN VIRGINIA AND THE CAROLINAS...WHERE HAIL AND DAMAGING WINDS ARE EXPECTED ALONG WITH THE POTENTIAL FOR A TORNADO OR TWO. SHOWERS AND ISOLATED THUNDERSTORMS -- ALONG WITH RISK FOR HAIL AND LOCALLY DAMAGING WINDS -- WILL ALSO DEVELOP ACROSS PARTS OF THE MID OHIO VALLEY AND NORTH INTO SOUTHERN LOWER MICHIGAN DURING THE AFTERNOON. ...SYNOPSIS... A LARGE MID- AND UPPER-LEVEL LOW OVER THE LOWER MO VALLEY VICINITY WILL DRIFT SLOWLY NWD WITH TIME...WITH A BROAD ZONE OF STRONG CYCLONIC FLOW SURROUNDING THIS SYSTEM. AT THE SURFACE...AN OCCLUDED LOW IS PROGGED TO LINGER INVOF THE ERN IA/NRN IL VICINITY MUCH OF THE PERIOD...WITH A TRAILING COLD FRONT TO MAKE SLOW EWD PROGRESS ACROSS THE MID OH AND TN VALLEYS/CENTRAL GULF COAST REGION. AREAS AHEAD OF THIS BOUNDARY WILL AGAIN FALL UNDER A RISK FOR FAIRLY WIDESPREAD SEVERE STORMS.
mardi 29 avril 2014
Apr 29, 2014 0600 UTC Day 1 Convective Outlook,,,,,,,,,,,,,,,,,,,,,,,,,,,,,http://www.spc.noaa.gov/products/outlook/day1otlk.html
VALID 291200Z - 301200Z
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