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Mesoscale Discussion 202
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   MESOSCALE DISCUSSION 0202
   NWS STORM PREDICTION CENTER NORMAN OK
   0827 PM CST SAT MAR 07 2009
   
   AREAS AFFECTED...S CENTRAL AND ERN KS
   
   CONCERNING...SEVERE THUNDERSTORM WATCH 45...
   
   VALID 080227Z - 080430Z
   
   THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 45
   CONTINUES.
   
   SEVERE THREAT CONTINUES ACROSS PARTS OF WW.
   
   LATEST SURFACE ANALYSIS SHOWS THAT THE SURFACE BOUNDARY -- AIDED BY
   CONVECTIVE OUTFLOW -- IS SHIFTING SLOWLY SWD WITH TIME...AND NOW
   EXTENDS FROM THE NRN TX PANHANDLE NEWD TO JUST S OF KANSAS CITY. 
   STRONG/SEVERE STORMS CONTINUE TRAINING NEWD INVOF THIS FRONT...WITH
   SEVERAL REPORTS OF HAIL UP TO GOLF BALL SIZE.
   
   LOW-LEVEL JET CONTINUES TO INCREASE WITH TIME...WITH 50 TO 60 KT
   SWLYS NOW INDICATED AROUND H8 ACROSS OK/SERN KS/SWRN MO.  ALONG WITH
   STORMS ONGOING INVOF THE SURFACE FRONT...CONVECTION SHOULD CONTINUE
   TO INCREASE TO THE COOL SIDE OF THE BOUNDARY AS WARM
   ADVECTION/ISENTROPIC LIFT INCREASE.  GREATEST SEVERE
   THREAT...HOWEVER...SHOULD REMAIN INVOF THE BOUNDARY...WHERE MOST
   FAVORABLE AIRMASS EXISTS.  EVENING TOPEKA KS RAOB -- JUST TO THE
   COOL SIDE OF THE FRONT -- INDICATES FAVORABLY STRONG FLOW /INCLUDING
   85 KT SWLYS JUST BELOW H5/ AND SLIGHTLY ELEVATED CAPE IN EXCESS OF
   900 J/KG.  THIS ENVIRONMENT WILL CONTINUE TO SUPPORT HAIL...AND
   POSSIBLY A TORNADO WITH ANY STORM IN CLOSE PROXIMITY TO THE SURFACE
   FRONT.
   
   WITH STORMS -- AND AT LEAST SOME SEVERE THREAT -- LIKELY TO LINGER
   ACROSS PARTS OF KS BEYOND THE SCHEDULED 08/04Z WATCH EXPIRATION...A
   LOCAL EXTENSION OF THIS WATCH -- OR WW RE-ISSUANCE -- MAY BE
   REQUIRED.
   
   ..GOSS.. 03/08/2009
   
   
   ATTN...WFO...EAX...TOP...ICT...OUN...DDC...
   
   LAT...LON   36589894 36669959 38529776 39459514 37899535 36589894 
   
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Page last modified: March 08, 2009
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