Tornado Watch 60

Issued

Mar 12, 2001, 10:00 AM CST (16:00 UTC)

Expired

Mar 12, 2001, 3:00 PM CST

In force

5 hr

Issued by

the Storm Prediction Center

000 
WWUS9 KMKC 121524
SEL0  

SEL0  
MKC WW 121517
ALZ000-LAZ000-MSZ000-CWZ000-122100-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 60
STORM PREDICTION CENTER NORMAN OK
917 AM CST MON MAR 12 2001

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

   SOUTHWEST ALABAMA                            
   SOUTHERN LOUISIANA                          
   SOUTHEAST MISSISSIPPI                        
   COASTAL WATERS                     

EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 1000 AM UNTIL 300
PM CST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 100 STATUTE MILES EAST AND WEST
OF A LINE FROM 45 MILES SOUTHEAST OF INTRACOASTAL CITY LOUISIANA TO
70 MILES EAST NORTHEAST OF LAUREL MISSISSIPPI.

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...THIS TORNADO WATCH REPLACES SEVERE
THUNDERSTORM WATCH NUMBER 57...SEVERE THUNDERSTORM WATCH NUMBER 58. 
WATCH NUMBER 57...58 WILL NOT BE IN EFFECT AFTER 1000 AM CST. 
CONTINUE...WW 59...

DISCUSSION...LINE OF SEVERE STORMS FROM SWRN LA INTO SRN MS
CONTINUES TO MOVE EWD WITH RADAR INDICATING EMBEDDED LEWPS ALONG
THE LINE.  IN ADDITION...CELLS CONTINUE TO DEVELOP AHEAD OF THE
LINE WITH A FEW CELLS EXHIBITING ROTATION ON RADAR.  AIR MASS ALONG
THE COAST IS VERY WARM/MOIST WITH DEW POINTS AROUND 70F...AND VAD
WINDS SHOW WINDS INCREASING/VEERING WITH HEIGHT RESULTING IN VERY
STRONG LOW LEVEL SHEAR/HELICITY IN THE LOWEST 1-2 KM AGL.  THREAT
FOR SUPERCELLS AND TORNADOES IS EXPECTED TO INCREASE NEXT SEVERAL
HOURS.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. 
MEAN STORM MOTION VECTOR 24040.


...WEISS

;291,0931 320,0894 320,0862 291,0895;

Tornado Watches in Louisiana, 2001Tornado Watches in Mississippi, 2001Tornado Watches in Alabama, 2001Every tornado watch in 2001

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.