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Mesoscale Discussion 1426
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   MESOSCALE DISCUSSION 1426
   NWS STORM PREDICTION CENTER NORMAN OK
   1246 AM CDT TUE JUL 22 2014

   AREAS AFFECTED...PARTS OF ERN MN/NRN WI/WRN LOWER MI

   CONCERNING...SEVERE THUNDERSTORM WATCH 428...

   VALID 220546Z - 220645Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 428
   CONTINUES.

   SUMMARY...STORMS MOVING QUICKLY EWD ACROSS E CENTRAL AND NERN MN ARE
   FORECAST TO BEGIN MOVING OUT OF WW 428 IN THE NEXT HOUR.  ISOLATED
   SEVERE RISK ACCOMPANYING THE STORMS SUGGESTS THAT DOWNSTREAM WW MAY
   BE REQUIRED.

   DISCUSSION...LATEST RADAR LOOP SHOWS AN ORGANIZED LINE OF STORMS
   MOVING EWD THROUGH WW 428 AT AROUND 40 KT...AND APPROACHING THE MN
   ARROWHEAD...WRN LK SUPERIOR...AND THE MN/WI BORDER ATTM.  THE STORMS
   ARE CURRENTLY MOVING THROUGH THE AXIS OF GREATEST INSTABILITY AND
   WEAKEST CAP PER OBJECTIVE ANALYSIS...WITH INCREASING DOWNSTREAM CINH
   LIKELY TO SUPPORT A GRADUAL DECREASE IN OVERALL CONVECTIVE
   INTENSITY/ORGANIZATION OVER THE NEXT FEW HOURS AS STORMS ENCOUNTER
   THE MORE HOSTILE ENVIRONMENT.  THAT SAID...THE MCS REMAINS
   MATURE/WELL-ORGANIZED...WITH A PRONOUNCED CONVECTIVE LOW NOW MOVING
   INTO NWRN MN.  THUS...EXPECT STORMS/SEVERE RISK TO EXPAND E OF THE
   WW IN THE NEXT HOUR OR SO -- POSSIBLY REQUIRING NEW WATCH ISSUANCE.

   ..GOSS.. 07/22/2014


   ATTN...WFO...MQT...GRB...DLH...ARX...MPX...

   LAT...LON   48489306 48198944 47388804 46208838 45218979 45089103
               45449405 45709449 46579363 48489306 

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Page last modified: July 22, 2014
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