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Mesoscale Discussion 567
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   MESOSCALE DISCUSSION 0567
   NWS STORM PREDICTION CENTER NORMAN OK
   0334 PM CDT SAT MAY 09 2015

   AREAS AFFECTED...EASTERN CO/WESTERN KS

   CONCERNING...TORNADO WATCH 149...

   VALID 092034Z - 092130Z

   THE SEVERE WEATHER THREAT FOR TORNADO WATCH 149 CONTINUES.

   SUMMARY...TORNADO THREAT CONTINUES ACROSS EASTERN COLORADO AND
   WESTERN KS.

   DISCUSSION...THUNDERSTORMS SHOULD GRADUALLY INCREASE IN COVERAGE AND
   INTENSITY ACROSS TORNADO WATCH OVER THE NEXT FEW HOURS.

   LATEST VIS IMAGERY CONTINUES TO SUGGEST CONVECTION OVER SERN CO IS
   EXPANDING/DEEPENING WITH SUBSTANTIAL VENTING APPARENT IN ANVIL
   SPREADING.  EXIT REGION OF UPPER JET SHOULD ENCOURAGE FURTHER
   SUPERCELL DEVELOPMENT WITHIN FAVORABLE SELY LOW-LEVEL FLOW. 
   DOWNSTREAM AIR MASS IS GRADUALLY DESTABILIZING PER NWD-DEVELOPING CU
   FIELD.  WHILE WARM FRONT HAS BEEN STUBBORN TO ADVANCE NORTH OF
   I-70...SUFFICIENTLY BUOYANT AIR MASS SHOULD SPREAD INTO NERN CO TO
   SUPPORT SUPERCELL DEVELOPMENT LATER THIS AFTERNOON.

   ..DARROW.. 05/09/2015


   ATTN...WFO...LBF...DDC...GLD...PUB...BOU...

   LAT...LON   37010304 40890436 40890128 37030014 37010304 

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