Tornado Watch 421

Issued

Jun 13, 1997, 4:00 PM CDT (21:00 UTC)

Expired

Jun 13, 1997, 10:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Dallas/Ft Worth radar (KFWS), 112 km from the middle of the area, began a volume at 21:02 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.

977 
WWUS9 KMKC 132031
SEL1  
MKC WW 132031
OKZ000-TXZ000-140300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 421
STORM PREDICTION CENTER NORMAN OK
331 PM CDT FRI JUN 13 1997

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

   SOUTHERN OKLAHOMA                           
   NORTH CENTRAL AND NORTHEAST TEXAS                              

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 400 PM UNTIL 1000
PM CDT.

TORNADOES...HAIL TO 3 1/2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES NORTH AND
SOUTH OF A LINE FROM 30 MILES WEST NORTHWEST OF MINERAL WELLS TEXAS
TO 70 MILES SOUTH SOUTHEAST OF PAGE OKLAHOMA.

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 417...WW 418...WW
419...WW 420...

DISCUSSION...EXPLOSIVE THUNDERSTORM DEVELOPMENT WILL OCCUR DURING
THE NEXT HOUR ALONG FRONTAL BOUNDARY AND RESIDUAL OUTFLOWS. EXTREME
INSTABILITY WITH CAPES TO 5000 J/KG AND MODERATE VERTICAL SHEAR
WILL SUPPORT SUPERCELL AND TORNADO DEVELOPMENT. 


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 1/2 INCHES.  EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
580.  MEAN STORM MOTION VECTOR 29015.


...VESCIO

340,0983 344,0940 323,0940 315,0983

Tornado Watches in Texas, 1997Tornado Watches in Oklahoma, 1997Tornado Watches in Arkansas, 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; radar from the NEXRAD Level II archive.