Tornado Watch 40

Issued

Mar 13, 2003, 9:55 AM EST (14:55 UTC)

Expired

Mar 13, 2003, 4:00 PM EST

In force

6 hr

Issued by

the Storm Prediction Center

The Jacksonville radar (KJAX), 31 km from the middle of the area, began a volume at 14:58 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.

• Mesoscale Discussion 235Mar 13, 9:39 AM EST

000 
WWUS20 KWNS 131505
SEL0  
SPC WW 131455
FLZ000-GAZ000-SCZ000-CWZ000-132100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 40
AFWA-OFFUTT AFB IN SPC BACKUP CAPACITY-OMAHA NEB
955 AM EST THU MAR 13 2003

AFWA-OFFUTT AFB-OMAHA NEB AS THE SPC BACKUP HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   NORTHEAST FLORIDA                            
   SOUTHEAST GEORGIA                            
   SOUTHERN SOUTH CAROLINA                     
   COASTAL WATERS                     

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 955 AM UNTIL 400
PM EST.

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 ALONG AND 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF GAINESVILLE FLORIDA TO
50 MILES NORTHEAST OF SAVANNAH GEORGIA.

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.


DISCUSSION...LINE OF SEVERE CONVECTION DEVELOPING EWD INTO AREA OF
STRONG INSTABILITY. POSSIBLE MESOLOW WEST OF AYS MOVING ENEWD MAY
INCREASE TORNADO THREAT.  MAIN THREAT WILL BE LARGE HAIL AND
DAMAGING WINDS. 


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 550. 
MEAN STORM MOTION VECTOR 25025.


...AFWA

292,0834 323,0815 323,0791 292,0811

WWUS20 KWNS 131505
SEL0  
SPC WW 131455
FLZ000-GAZ000-SCZ000-CWZ000-132100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 40
AFWA-OFFUTT AFB IN SPC BACKUP CAPACITY-OMAHA NEB
955 AM EST THU MAR 13 2003

AFWA-OFFUTT AFB-OMAHA NEB AS THE SPC BACKUP HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   NORTHEAST FLORIDA                            
   SOUTHEAST GEORGIA                            
   SOUTHERN SOUTH CAROLINA                     
   COASTAL WATERS                     

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 955 AM UNTIL 400
PM EST.

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 ALONG AND 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF GAINESVILLE FLORIDA TO
50 MILES NORTHEAST OF SAVANNAH GEORGIA.

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.


DISCUSSION...LINE OF SEVERE CONVECTION DEVELOPING EWD INTO AREA OF
STRONG INSTABILITY. POSSIBLE MESOLOW WEST OF AYS MOVING ENEWD MAY
INCREASE TORNADO THREAT.  MAIN THREAT WILL BE LARGE HAIL AND
DAMAGING WINDS. 


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 550. 
MEAN STORM MOTION VECTOR 25025.


...AFWA

292,0834 323,0815 323,0791 292,0811

Tornado Watches in Georgia, 2003Tornado Watches in Florida, 2003Tornado Watches in South Carolina, 2003Every tornado watch in 2003

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.