Severe Thunderstorm Watch 39

Issued

Mar 13, 2003, 8:50 AM CST (14:50 UTC)

Expired

Mar 13, 2003, 2:00 PM CST

In force

5 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 234Mar 13, 7:52 AM CST
• Mesoscale Discussion 239Mar 13, 11:29 AM CST

000 
WWUS20 KWNS 131443
SEL9  
SPC WW 131450
LAZ000-MSZ000-132000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 39
STORM PREDICTION CENTER NORMAN OK
850 AM CST THU MAR 13 2003

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

   EASTERN LOUISIANA                          
   MISSISSIPPI                        

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 850 AM UNTIL 200
PM CST.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 75 STATUTE MILES
EAST AND WEST OF A LINE FROM 35 MILES WEST SOUTHWEST OF MC COMB
MISSISSIPPI TO 20 MILES NORTHEAST OF OXFORD MISSISSIPPI.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

DISCUSSION...THUNDERSTORM COMPLEX CROSSING THE MS RVR EXPECTED TO
REMAIN STRONG/POSSIBLY INTENSIFY AS IT CONTINUES GENERALLY EWD. 
SUFFICIENT DEEP SHEAR /40 KTS/ AND INSTABILITY APPEAR PRESENT FOR
LARGE HAIL/POSSIBLY DAMAGING WINDS...ESPECIALLY GIVEN ONSET OF
DAYTIME HEATING. 

AVIATION...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 500.  MEAN STORM
MOTION VECTOR 27030.

...CORFIDI

305,0921 343,0903 343,0875 305,0894

Severe Thunderstorm Watches in Mississippi, 2003Severe Thunderstorm Watches in Louisiana, 2003Every severe thunderstorm 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.