Severe Thunderstorm Watch 430

Issued

Jun 15, 2002, 7:30 PM CDT (00:30 UTC)

Expired

Jun 16, 2002, 1:00 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Altus AFB radar (KFDR), 134 km from the middle of the area, began a volume at 00:33 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.

000 
WWUS20 KWNS 160010
SEL0  
SPC WW 160003
OKZ000-TXZ000-160600-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 430
STORM PREDICTION CENTER NORMAN OK
703 PM CDT SAT JUN 15 2002

THE STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF

SOUTHWEST OKLAHOMA                           
NORTHWEST TEXAS                              

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 730 PM UNTIL
100 AM CDT.

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

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 60 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 20 MILES WEST NORTHWEST OF PLAINVIEW
TEXAS TO 30 MILES SOUTHEAST OF FORT SILL OKLAHOMA.

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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.  SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE
TORNADOES.

OTHER WATCH INFORMATION...  CONTINUE...WW 429...

DISCUSSION...LARGE MCS OVER NRN OK WILL CONTINUE TO SURGE SWD AND
MERGE WITH ANOTHER DEVELOPING STORM CLUSTER OVER THE CENTRAL TX
PANHANDLE.  DEEP LAYER SHEAR AND INSTABILITY ARE FAVORABLE FOR SSE
MOVING SUPERCELLS WITH LARGE HAIL AND DAMAGING WINDS...THOUGH THE
LARGE/STRONG COLD POOLS SUPPORT PREDOMINANTLY LINEAR CONVECTION
WITH STRONG OUTFLOW GUSTS AND SOME THREAT FOR LARGE HAIL.  EXPECT
MERGING STORM CLUSTERS TO DEVELOP SWD ALONG THE INSTABILITY AXIS...
WITH THE GREATEST SEVERE THREAT ALONG THE WRN OK BORDER.
 
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.  MEAN STORM
MOTION VECTOR 33035.


...THOMPSON

350,1020 351,0980 332,0980 332,1020

Severe Thunderstorm Watches in Texas, 2002Severe Thunderstorm Watches in Oklahoma, 2002Every severe thunderstorm watch in 2002

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.