Tornado Watch 52

Issued

Feb 21, 1998, 3:00 PM CST (21:00 UTC)

Expired

Feb 21, 1998, 9:00 PM CST

In force

6 hr

Issued by

the Storm Prediction Center

The Austin/San Antonio radar (KEWX), 136 km from the middle of the area, began a volume at 21:01 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.

488 
WWUS9 KMKC 212025
SEL2  
MKC WW 212025
TXZ000-220300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 52
STORM PREDICTION CENTER NORMAN OK
225 PM CST SAT FEB 21 1998

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

   SOUTH TEXAS                              
   AND ADJACENT COASTAL WATERS

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 300 PM UNTIL 900
PM CST.

TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 90 MILES WEST NORTHWEST OF COTULLA TEXAS TO 70
MILES EAST OF CORPUS CHRISTI 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...THUNDERSTORMS ARE SLOWLY DEVELOPING IN ADVANCE OF
STRONG UPPER TROUGH. STEEP MID LEVEL LAPSE RATES AND RELATIVELY
STRONG VERTICAL SHEAR WILL SUPPORT SEVERE THUNDERSTORM DEVELOPMENT.
SUPERELLS ARE POSSIBLE WITH THE MAIN THREAT BEING LARGE HAIL AND
POSSIBLY TORNADOES.


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. 
MEAN STORM MOTION VECTOR 26035.


...VESCIO

301,1003 290,0962 262,0962 273,1003

Tornado Watches in Texas, 1998Every tornado watch in 1998

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.