Tornado Watch 45

Issued

Mar 1, 2007, 8:40 AM CST (14:40 UTC)

Expired

Mar 1, 2007, 5:42 PM CST

In force

9 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Evansville,IN radar (KVWX), 74 km from the middle of the area, began a volume at 14:40 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

Two or more tornadoes

70%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

70%

One or more gusts of 65 knots or more

40%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 236Mar 1, 10:24 AM CST
• Mesoscale Discussion 240Mar 1, 12:48 PM CST

000
WWUS20 KWNS 011440
SEL5  
SPC WW 011440
ILZ000-INZ000-KYZ000-020000-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 45
NWS STORM PREDICTION CENTER NORMAN OK
840 AM CST THU MAR 1 2007

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF 

       PARTS OF EASTERN AND SOUTHERN ILLINOIS
       PARTS OF SOUTHERN AND WESTERN INDIANA
       PARTS OF CENTRAL AND WESTERN KENTUCKY

EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 840 AM UNTIL 600
PM CST.

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 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH NORTHEAST OF
DANVILLE ILLINOIS TO 20 MILES WEST OF FORT CAMPBELL KENTUCKY. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).

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 42...WW 43...WW 44...

DISCUSSION...INTENSE SURFACE LOW MOVING INTO IA WITH VERY STRONG
MID/UPPER JET DRIVING NEWD ACROSS MID MS AND LOWER OH VALLEY.  AIR
MASS EXPECTED TO DESTABILIZE NWD AHEAD OF COLD FRONT WITH VERY
FAVORABLE CONDITIONS FOR DEVELOPMENT OF SUPERCELLS/TORNADOES.

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
450. MEAN STORM MOTION VECTOR 24050.


...HALES

Tornado Watches in Indiana, 2007Tornado Watches in Illinois, 2007Tornado Watches in Kentucky, 2007Every tornado watch in 2007

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.