Post by James on Oct 18, 2007 18:27:29 GMT -5
URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 724
NWS STORM PREDICTION CENTER NORMAN OK
325 PM CDT THU OCT 18 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PART OF SOUTHERN AND EASTERN ILLINOIS
MUCH OF INDIANA
MUCH OF LOWER MICHIGAN
LAKE HURON
LAKE MICHIGAN
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 325 PM UNTIL
1100 PM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 90 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH NORTHEAST OF
ALPENA MICHIGAN TO 40 MILES SOUTHEAST OF MOUNT VERNON ILLINOIS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).
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 722...WW 723...
DISCUSSION...VERY STRONG WIND FIELDS ROTATING NEWD ACROSS MID MS
VALLEY INTO GREAT LAKES TO E OF DEEP LOW OVER MN. AIR MASS NOW
MDTLY UNSTABLE AND WITH LITTLE REMAINING CINH. STEEP LAPSE RATES
HAVE DEVELOPED IN THE MOIST AXIS WHICH WILL FURTHER ENHANCE WIND
DAMAGE POTENTIAL AS STORMS DEVELOP INTO LINES AND BOWS.
ADDITIONALLY SUPERCELLS WILL BE LIKELY WITH POTENTIAL FOR STRONG
TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 22045.
TORNADO WATCH NUMBER 724
NWS STORM PREDICTION CENTER NORMAN OK
325 PM CDT THU OCT 18 2007
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
PART OF SOUTHERN AND EASTERN ILLINOIS
MUCH OF INDIANA
MUCH OF LOWER MICHIGAN
LAKE HURON
LAKE MICHIGAN
EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 325 PM UNTIL
1100 PM CDT.
TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 90 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 95 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH NORTHEAST OF
ALPENA MICHIGAN TO 40 MILES SOUTHEAST OF MOUNT VERNON ILLINOIS.
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).
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 722...WW 723...
DISCUSSION...VERY STRONG WIND FIELDS ROTATING NEWD ACROSS MID MS
VALLEY INTO GREAT LAKES TO E OF DEEP LOW OVER MN. AIR MASS NOW
MDTLY UNSTABLE AND WITH LITTLE REMAINING CINH. STEEP LAPSE RATES
HAVE DEVELOPED IN THE MOIST AXIS WHICH WILL FURTHER ENHANCE WIND
DAMAGE POTENTIAL AS STORMS DEVELOP INTO LINES AND BOWS.
ADDITIONALLY SUPERCELLS WILL BE LIKELY WITH POTENTIAL FOR STRONG
TORNADOES.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 80 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 22045.