Tornado Watch 340

Issued

May 27, 1997, 3:45 PM CDT (20:45 UTC)

Expired

May 27, 1997, 10:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

672 
WWUS9 KMKC 272031
SEL0  
MKC WW 272031
TXZ000-280300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 340
STORM PREDICTION CENTER NORMAN OK
331 PM CDT TUE MAY 27 1997

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

   SOUTH TEXAS                              

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 345 PM UNTIL 1000
PM CDT.

TORNADOES...HAIL TO 4 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 145 STATUTE MILES EAST AND WEST
OF A LINE FROM 90 MILES SOUTH OF DEL RIO TEXAS TO 35 MILES
NORTHWEST OF AUSTIN 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.

OTHER WATCH INFORMATION...  CONTINUE...WW 336...WW 337...WW
338...WW 339...

DISCUSSION...INTENSE THUNDERSTORMS WITH VERY LARGE HAIL...HIGH
WINDS AND ISOLATED TORNADOES POSSIBLE THIS EVENING WHERE MODERATE
LOW LEVEL INFLOW OF VERY MOIST AIR CONTINUES BENEATH AXIS OF STEEP
LOW TO MID LEVEL LAPSE RATES AHEAD OF SOUTHEAST MOVING COLD FRONT.
DEEP-LAYERED VERTICAL SHEAR LIMITED...BUT TORNADOES STILL POSSIBLE
IN VICINITY OF BOUNDARY INTERSECTIONS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 4 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 580. 
MEAN STORM MOTION VECTOR 31010.


...CORFIDI

280,1031 303,1003 303,0954 280,0983

Tornado 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.