SPC AC 220730

   DAY 3 CONVECTIVE OUTLOOK  
   NWS STORM PREDICTION CENTER NORMAN OK
   0230 AM CDT WED JUL 22 2015

   VALID 241200Z - 251200Z

   ...THERE IS A SLGT RISK OF SVR TSTMS ACROSS THE UPPER MIDWEST/UPPER
   MS RIVER VALLEY...

   ...THERE IS A MRGL RISK OF SVR TSTMS FROM THE CENTRAL HIGH PLAINS TO
   THE UPPER GREAT LAKES...

   ...THERE IS A MRGL RISK OF SVR TSTMS ACROSS THE SOUTHEAST STATES/FL
   PENINSULA...

   ...SUMMARY...
   SEVERE THUNDERSTORMS WILL BE POSSIBLE FRIDAY MAINLY ACROSS PARTS OF
   THE UPPER MIDWEST.

   ...SYNOPSIS...
   MODEST LARGE-SCALE PATTERN DEAMPLIFICATION IS EXPECTED ON FRIDAY AS
   A LOW-AMPLITUDE BELT OF MODERATELY STRONG WESTERLIES WILL CONTINUE
   TO PREVAIL OVER THE NORTHERN THIRD OF THE CONUS.

   ...UPPER MIDWEST/UPPER MS RIVER VALLEY/CENTRAL PLAINS...
   WEAK HEIGHT FALLS ARE EXPECTED OVER THE UPPER MIDWEST/INTERNATIONAL
   BORDER VICINITY COINCIDENT WITH A CORRIDOR OF LOW-AMPLITUDE/NEARLY
   ZONAL WESTERLIES. THUNDERSTORMS ARE EXPECTED TO INCREASE FRIDAY
   AFTERNOON/EARLY EVENING NEAR A SOUTHEASTWARD-MOVING COLD FRONT
   ACROSS PARTS OF MN AND NORTHERN/FAR WESTERN WI...AND POSSIBLY PARTS
   OF THE MIDDLE MO VALLEY...ALTHOUGH CAPPING/MID-LEVEL WARMTH WILL
   STEADILY INCREASE WITH SOUTHWESTWARD EXTENT ALONG THE ADVANCING
   FRONT. BOUTS OF SEVERE WIND/HAIL WILL BE POSSIBLE WITH THE STRONGER
   STORMS PARTICULARLY FRIDAY LATE AFTERNOON AND EVENING.

   ...SOUTHEAST STATES/FL PENINSULA...
   A WEAK UPPER LOW SHOULD CONTINUE SOUTHEASTWARD OVER THE COASTAL
   SOUTHEAST STATES/NEARBY ATLANTIC ON FRIDAY...WITH THE POSSIBILITY OF
   MODERATE DIURNAL DESTABILIZATION PARTICULARLY ACROSS PORTIONS OF THE
   FL PENINSULA/NEARBY GA. POCKETS OF STRONGER HEATING/DESTABILIZATION
   MAY ALLOW FOR SOME POTENTIAL OF WET MICROBURSTS CAPABLE OF LOCALLY
   DAMAGING WINDS AS THUNDERSTORMS DIURNALLY INCREASE/INTENSIFY FRIDAY
   AFTERNOON.

   ..GUYER.. 07/22/2015

   CLICK TO GET WUUS03 PTSDY3 PRODUCT

   NOTE: THE NEXT DAY 3 OUTLOOK IS SCHEDULED BY 0730Z