Tornado Watch 197

Issued

May 13, 2004, 8:30 AM CDT (13:30 UTC)

Expired

May 13, 2004, 2:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 683May 13, 9:54 AM CDT
• Mesoscale Discussion 687May 13, 1:38 PM CDT

161 
WWUS20 KWNS 131330
SEL7  
SPC WW 131330
TXZ000-131900-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 197
NWS STORM PREDICTION CENTER NORMAN OK
830 AM CDT THU MAY 13 2004

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

       SOUTH CENTRAL AND SOUTHEAST TEXAS

EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 830 AM UNTIL
200 PM CDT.

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 40 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 10 MILES SOUTHWEST OF AUSTIN TEXAS TO 45
MILES SOUTHEAST OF LUFKIN TEXAS.

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...E/W BAND OF STRONG/SEVERE THUNDERSTORMS ACROSS SCENTRAL
TX WITH FEED OF VERY MOIST UNSTABLE AIRMASS OFF GULF. SHEAR PROFILES
WITH 40-50 KT LLJ ARE FAVORABLE FOR TORNADIC SUPERCELLS AS OVERALL
STORMS GRADUALLY DEVELOP S.

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 18020.


...HALES

304,0974 312,0941 301,0941 293,0974

Tornado Watches in Texas, 2004Every tornado watch in 2004

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.