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Tornado Watch 266
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WW0266 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Moderate
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
High High

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 266
   NWS STORM PREDICTION CENTER NORMAN OK
   350 PM CDT SAT JUN 5 2010
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          CENTRAL AND EASTERN IOWA
          WESTERN ILLINOIS
          NORTHERN MISSOURI
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
   1100 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 80 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 45 MILES WEST SOUTHWEST OF
   DES MOINES IOWA TO 10 MILES SOUTH SOUTHEAST OF PEORIA ILLINOIS. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU6).
   
   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 262...WW 263...WW
   264...WW 265...
   
   DISCUSSION...SCATTERED ELEVATED STORMS WERE LOCATED IN WESTERN IA
   AND WERE EXPECTED TO INTENSIFY AS THEY MOVE SEWD AND BECOME ROOTED
   INTO A VERY UNSTABLE BOUNDARY LAYER. DEEP LAYER SHEAR AT 50 KT AND
   STRONG INSTABILITY WILL BE FAVORABLE FOR SUPERCELLS WITH VERY LARGE
   HAIL. DESPITE SWLY BOUNDARY LAYER WINDS...STRONGLY VEERING WINDS IN
   THE LOWER 1-2 KM AND RICH BOUNDARY LAYER MOISTURE ALSO APPEARS
   FAVORABLE FOR A FEW TORNADOES. LATE IN THE EVENING...THE OUTFLOWS
   ARE LIKELY TO MERGE WITH THE POTENTIAL FOR A SQUALL LINE WITH WIND
   DAMAGE TO EVOLVE.
   
   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
   500. MEAN STORM MOTION VECTOR 29030.
   
   
   ...IMY
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Page last modified: September 21, 2020
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