High threat for Tornadoes in KS
Posted by JAC on 5/19/2011, 3:51 pm
STP has been increasing this afternoon and is uncapped.

Kinda popped out of nowhere.

Didn't see anything on SREF this morning.

Squall line currently forming to the south in OK.


http://www.spc.noaa.gov/products/watch/ww0309.html










URGENT - IMMEDIATE BROADCAST REQUESTED
  TORNADO WATCH NUMBER 309
  NWS STORM PREDICTION CENTER NORMAN OK
  145 PM CDT THU MAY 19 2011
 
  THE NWS STORM PREDICTION CENTER HAS ISSUED A
  TORNADO WATCH FOR PORTIONS OF
 
         MUCH OF KANSAS
 
  EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 145 PM UNTIL
  900 PM CDT.
 
  TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
  GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
  AREAS.
 
  THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
  MILES EAST AND WEST OF A LINE FROM 65 MILES NORTHEAST OF HILL
  CITY KANSAS TO 25 MILES SOUTHEAST OF MEDICINE LODGE KANSAS.  FOR
  A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
  OUTLINE UPDATE (WOUS64 KWNS WOU9).
 
  REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
  TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
  AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
  THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
  AND POSSIBLE WARNINGS.
 
  OTHER WATCH INFORMATION...CONTINUE...WW 307...WW 308...
 
  DISCUSSION...AIR MASS HAS WARMED SUFFICIENTLY SOUTH OF WARM
  FRONT...NEAR A ICT-RSL LINE...AND EAST OF A DRYLINE IN WRN KS FOR
  STORMS TO INITIATE. THE STORMS WILL DEVELOP/SPREAD NWD THROUGH THE
  AFTERNOON HOURS DUE TO THE STRONG SLY FLOW ALOFT. THE DEEP LAYER
  SHEAR AND STRONG INSTABILITY ARE FAVORABLE FOR INTENSE SUPERCELLS...
  WITH THE LARGER HAIL NEAR OR BIGGER THAN BASEBALL SIZE. ALSO...THE
  MOIST BOUNDARY LAYER AND STRONG LOW LEVEL SHEAR WILL SUPPORT
  TORNADOES...ONE OR TWO WHICH COULD BE STRONG. THE TORNADOES ARE MOST
  LIKELY NEAR AND NORTH OF THE WARM FRONT WHERE ELY BOUNDARY LAYER
  WINDS WILL RESULT IN ENHANCED SHEAR.
     
  ...IMY

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High threat for Tornadoes in KS - JAC, 5/19/2011, 3:51 pm
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