Tornado Watch 231

Issued

May 1, 1997, 10:15 PM CDT (03:15 UTC)

Expired

May 2, 1997, 4:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

169 
WWUS9 KMKC 020250
SEL1  
MKC WW 020250
TXZ000-OKZ000-020900-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 231
STORM PREDICTION CENTER NORMAN OK
950 PM CDT THU MAY 1 1997

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

   PORTIONS OF THE EASTERN TEXAS PANHANDLE AND NORTHWEST TEXAS    
   MUCH OF CENTRAL AND WESTERN OKLAHOMA                           

EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 1015 PM UNTIL
400 AM CDT.

TORNADOES...HAIL TO 2 1/2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 95 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 105 STATUTE MILES EAST AND WEST
OF A LINE FROM 40 MILES SOUTH SOUTHEAST OF CHILDRESS TEXAS TO 20
MILES NORTH OF PONCA CITY OKLAHOMA.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 228...TORNADO WATCH NUMBER 230.  WATCH NUMBER 228...230 WILL
NOT BE IN EFFECT AFTER 1015 PM CDT.

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...ISOLATED SUPERCELL CONTINUES TO MOVE ACROSS CENTRAL
OKLAHOMA WITH A SQUALL LINE DEVELOPING ALONG THE COLD FRONT OVER
NORTHWEST OKLAHOMA AND THE TX PANHANDLE. ACTIVITY IS EXPECTED TO
PROPAGATE EAST-SOUTHEAST ALONG INSTABILITY AXIS WITH A THREAT FOR
LARGE HAIL...VERY STRONG WINDS...AND PERHAPS AN ISOLATED TORNADO OR
TWO. 


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 1/2 INCHES.  EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 80 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
520.  MEAN STORM MOTION VECTOR 27035.


...VESCIO

335,1015 370,0990 370,0951 335,0981

Tornado Watches in Oklahoma, 1997Tornado Watches in Texas, 1997Every tornado watch in 1997

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.