Slow moving and training storms could lead to higher totals.
ILN AFD
.LONG TERM /FRIDAY THROUGH TUESDAY/...
LOOKS LIKE A PERIOD OF UNSETTLED WEATHER IS IN STORE WITH A LONG
WAVE UPPER TROUGH AND COOLING ALOFT COMBINING WITH AN INCREASINGLY
UNSTABLE SURFACE AIRMASS TO PRODUCE CONVECTION. MODELS ARE RATHER
CONSISTENT WITH RESPECT TO PREVIOUS RUNS THOUGH EXACT TIMING AND
LOCATION OF CONVECTION IS STILL IN QUESTION.
FOR FRIDAY...THUNDERSTORMS WILL BE LIKELY AS A MID LEVEL SHORT WAVE AND WEAK SURFACE LOW TRAVEL UP FROM THE SOUTHWEST WITH A CHUNK OF
MOISTURE. CHANCE FOR SEVERE THUNDERSTORMS APPEARS LOW DUE TO WEAK
INSTABILITY AND SHEAR. HEAVY RAIN MAY RESULT AS PRECIPITABLE WATER
SURGES ABOVE NORMAL IN A REGIME THAT WILL FEATURE SLOW MOVING CELLS
AND A POTENTIAL FOR TRAINING.
THE THREAT FOR THUNDERSTORMS WILL PERSIST THROUGH THE WEEKEND INTO
MONDAY AS THE LONG WAVE TROUGH MAKES ITS WAY SLOWLY EAST...ENHANCED
BY SHORT WAVE ENERGY FROM TIME TO TIME. A RETURN TO DRIER WEATHER
WILL BE POSSIBLE NEXT TUESDAY WHEN THE FLOW ALOFT IS FORECAST TO
BECOME ZONAL WHILE SURFACE HIGH PRESSURE BUILDS OVER THE SOUTHEAST
STATES.
TEMPERATURES WILL HOVER WITHIN A FEW DEGREES OF NORMAL WITH HIGHS IN THE 80S. FRIDAY MAY BE THE COOLEST DAY OF THE PERIOD WITH HIGHS IN
THE LOWER 80S DUE TO WIDESPREAD CLOUDS AND NUMEROUS THUNDERSTORMS.

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