High Risk for Torandoes NE MO
Posted by JAC on 6/26/2011, 9:58 pm
Hugh STP!  Pray for the folks there, looks like this could hit the fan.






URGENT - IMMEDIATE BROADCAST REQUESTED
  TORNADO WATCH NUMBER 560
  NWS STORM PREDICTION CENTER NORMAN OK
  655 PM CDT SUN JUN 26 2011
 
  THE NWS STORM PREDICTION CENTER HAS ISSUED A
  TORNADO WATCH FOR PORTIONS OF
 
         EXTREME NORTHEAST KANSAS
         NORTHWEST INTO EAST CENTRAL MISSOURI
 
  EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 655 PM UNTIL
  200 AM 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 50 STATUTE
  MILES NORTH AND SOUTH OF A LINE FROM 40 MILES NORTHWEST OF SAINT
  JOSEPH MISSOURI TO 75 MILES EAST OF JEFFERSON CITY MISSOURI.  FOR
  A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
  OUTLINE UPDATE (WOUS64 KWNS WOU0).
 
  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 555...WW 556...WW
  557...WW 558...WW 559...
 
  DISCUSSION...THUNDERSTORMS ARE BEGINNING TO DEVELOP ALONG THE
  SURFACE WARM FRONT IN NW MO...AND W OF STL WHERE A SMALL OUTFLOW
  BOUNDARY INTERSECTS THE FRONT.  A VERY UNSTABLE AIR MASS IS IN PLACE
  ALONG AND S OF THE BOUNDARY WHERE MLCAPE IS NEAR 5000 J/KG...AND
  EFFECTIVE BULK SHEAR NEAR 50 KT WILL FAVOR SUPERCELLS.
  ADDITIONALLY...EFFECTIVE SRH OF 200-400 M2/S2 AND A MOIST BOUNDARY
  LAYER WILL BE FAVORABLE FOR TORNADOES WITH ANY DISCRETE STORMS IN
  THE NEXT FEW HOURS.  VERY LARGE HAIL WILL ALSO BE POSSIBLE.  LATER
  TONIGHT...THE DEVELOPING STORMS COULD EVOLVE INTO ONE OR MORE
  CLUSTERS...OR THE BOWING MCS IN ERN NEB COULD DEVELOP SEWD ALONG THE
  FRONT...WITH AN ATTENDANT RISK FOR DAMAGING WINDS.
 
  AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
  SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
  WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
  650. MEAN STORM MOTION VECTOR 28025.
 
 
  ...THOMPSON

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High Risk for Torandoes NE MO - JAC, 6/26/2011, 9:58 pm
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