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Mesoscale Discussion 1626
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   MESOSCALE DISCUSSION 1626
   NWS STORM PREDICTION CENTER NORMAN OK
   0606 PM CDT THU AUG 06 2015

   AREAS AFFECTED...ERN SD INTO WRN MN

   CONCERNING...SEVERE THUNDERSTORM WATCH 476...

   VALID 062306Z - 070100Z

   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 476
   CONTINUES.

   SUMMARY...A THREAT OF SEVERE WEATHER PERSISTS ACROSS THE WATCH
   AREA...AND MAY EVENTUALLY EXTEND E OF THE EXISTING WATCH LATER THIS
   EVENING AFFECTING THE MINNEAPOLIS AREA.

   DISCUSSION...STORMS CONTINUE TO EVOLVE ALONG A LOW-PRESSURE TROUGH
   ACROSS ERN SD...AND FARTHER EWD NEAR A DIFFUSE WARM FRONT. VEERING
   WINDS WITH HEIGHT WILL CONTINUE TO FAVOR SUPERCELLS AS A SHORTWAVE
   TROUGH CONTINUES EWD ACROSS THE REGION. LAPSE RATES ALOFT ARE
   RELATIVELY POOR...AND THE BOUNDARY LAYER IS A BIT COOLER WITH EWD
   EXTEND. THUS...ONLY MARGINALLY SEVERE HAIL IS EXPECTED...SUPPORTED
   BY STORM MODE. SEVERE WIND GUSTS OR BRIEF TORNADOES WILL CONTINUE TO
   BE POSSIBLE AS A SWLY LOW-JET INCREASES FURTHER THIS EVENING. 

   STORMS MAY EVENTUALLY REACH THE ERN EDGE OF THE WATCH...AT WHICH
   TIME A NEW WATCH WILL HAVE TO BE CONSIDERED IF STORMS REMAIN SEVERE.

   ..JEWELL.. 08/06/2015


   ATTN...WFO...DLH...MPX...FSD...ABR...

   LAT...LON   44499783 45979494 46089372 45949311 45639271 44899330
               43319580 43329646 43619769 44499783 

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Page last modified: August 07, 2015
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