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Weather Service Paducah, Kentucky Serving Kentucky, Illinois, Indiana & Missouri |
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SEL5 ILZ000-INZ000-KYZ000-MOZ000-070500- URGENT - IMMEDIATE BROADCAST REQUESTED TORNADO WATCH NUMBER 275 NWS STORM PREDICTION CENTER NORMAN OK 540 PM CDT TUE MAY 6 2003 THE NWS STORM PREDICTION CENTER HAS ISSUED A TORNADO WATCH FOR PORTIONS OF SOUTHERN ILLINOIS EXTREME SOUTHWEST INDIANA WESTERN KENTUCKY EAST AND SOUTHEAST MISSOURI EFFECTIVE THIS TUESDAY AFTERNOON FROM 540 PM UNTIL MIDNIGHT CDT. TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 90 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS. THE TORNADO WATCH AREA IS ALONG AND 85 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 70 MILES SOUTH SOUTHWEST OF SAINT LOUIS MISSOURI TO 10 MILES NORTH OF OWENSBORO KENTUCKY. 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 269...WW 270...WW 271...WW 272...WW 273...WW 274... DISCUSSION...THE ENVIRONMENT ACROSS ERN MO/SRN IL/WRN KY APPEARS FAVORABLE FOR THE MAINTENANCE OF THE INTENSE SUPERCELL/BOW ECHO CLUSTER NOW ACROSS CENTRAL MO. EXPECT THESE STORMS TO MOVE ESEWD ALONG THE OUTFLOW BOUNDARY FROM ERN MO TO SRN IL/WRN KY WHERE NEAR 70 DEWPOINTS ARE SUPPORTING MLCAPE NEAR 2500 J/KG...AND VERTICAL SHEAR IS QUITE FAVORABLE FOR SUPERCELLS. THE DEGREE OF INSTABILITY/SHEAR AND THE MESOSCALE ORGANIZATION OF THE STORMS SUGGESTS THE POSSIBILITY OF VERY LARGE/DAMAGING HAIL AND INTENSE OUTFLOW WINDS WITH THE EMBEDDED SUPERCELLS...IN ADDITION TO THE THREAT OF TORNADOES. AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM MOTION VECTOR 28035.
...THOMPSON
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