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Tornado Watch 157
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WW0157 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL7
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 157
   NWS STORM PREDICTION CENTER NORMAN OK
   540 PM CDT WED MAY 12 2010
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          EASTERN KANSAS
          WESTERN MISSOURI
   
   EFFECTIVE THIS WEDNESDAY AFTERNOON FROM 540 PM UNTIL MIDNIGHT CDT.
   
   TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 35 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 20 MILES WEST NORTHWEST OF
   OLATHE KANSAS TO 60 MILES EAST NORTHEAST OF KNOB NOSTER MISSOURI.
    FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU7).
   
   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 154...WW 155...WW 156...
   
   DISCUSSION...THUNDERSTORMS ARE EXPECTED TO CONTINUE TO INCREASE
   ACROSS EASTERN KANSAS AND WESTERN MISSOURI TONIGHT. THIS ACTIVITY
   HAS BEEN DEVELOPING NEAR A WEAK FRONTAL WAVE IN EASTERN KANSAS AND
   THEN SPREADING ENEWD ALONG A WARM FRONT SITUATED W-E ACROSS
   MISSOURI. LARGE SCALE ASCENT ACROSS THE REGION IS FORECAST TO
   STRENGTHEN TONIGHT. IN ADDITION...ENHANCED MASS TRANSPORT ON THE
   NOSE OF NOCTURNAL LOW LEVEL JET SHOULD RESULT IN ROBUST AND MORE
   WIDESPREAD DEVELOPMENT OVER THE NEXT SEVERAL HOURS. LOW LEVEL SHEAR
   PROFILES AND HIGH BOUNDARY LAYER RH ALONG THE WARM FRONT SHOULD
   FAVOR TORNADO POTENTIAL WITH DISCRETE STORMS EITHER TRACKING ALONG
   OR ACROSS THIS ZONE. AS COVERAGE OF STORMS INCREASES...EXPECT MCS
   DEVELOPMENT LATER TONIGHT WITH HAIL/WIND AND EXTREME RAINFALL
   POSSIBILITIES ALL INCREASING.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 23040.
   
   
   ...CARBIN
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Page last modified: September 21, 2020
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