Tornado Watch 812

Issued

Sep 24, 2005, 5:45 AM CDT (10:45 UTC)

Expired

Sep 24, 2005, 12:26 PM CDT

In force

7 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 2264Sep 24, 5:13 AM CDT
• Mesoscale Discussion 2266Sep 24, 10:27 AM CDT

000 
WWUS20 KWNS 241046
SEL2  
SPC WW 241046
LAZ000-MSZ000-TXZ000-CWZ000-242200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 812
NWS STORM PREDICTION CENTER NORMAN OK
545 AM CDT SAT SEP 24 2005

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

       MUCH OF LOUISIANA
       CENTRAL AND SOUTHERN MISSISSIPPI
       FAR E TEXAS
       COASTAL WATERS

EFFECTIVE THIS SATURDAY MORNING AND AFTERNOON FROM 545 AM UNTIL
500 PM CDT.

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

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 105 STATUTE
MILES EITHER SIDE OF A LINE FROM 50 MILES WEST SOUTHWEST OF FORT
POLK LOUISIANA TO 40 MILES EAST SOUTHEAST OF LAUREL MISSISSIPPI. 
FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU2).

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 TORNADO
WATCH NUMBER 810...TORNADO WATCH NUMBER 811. WATCH NUMBER 810 811
WILL NOT BE IN EFFECT AFTER 545 AM CDT. 

DISCUSSION...HURRICANE RITA MOVING NNWWD ALONG SERN TX/LA BORDER.
VERY STRONG SHEAR WILL CONTINUE TO SUPPORT TORNADIC SUPERCELLS
ASSOCIATED WITH FEEDER BANDS E OF STORM CENTER.

THE FORECAST MAXIMUM WIND GUSTS AND MEAN CELL MOTION APPLY TO SEVERE
THUNDERSTORMS OUTSIDE THE HURRICANE EYEWALL.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH EXTREME
TURBULENCE AND SURFACE WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI
WITH MAXIMUM TOPS TO 500. MEAN STORM MOTION VECTOR 13050.


...HALES

321,0940 325,0884 295,0881 291,0934

Tornado Watches in Louisiana, 2005Tornado Watches in Mississippi, 2005Tornado Watches in Texas, 2005Every tornado watch in 2005

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.