Severe Thunderstorm Watch 113

Issued

Apr 23, 2004, 5:30 PM CDT (22:30 UTC)

Expired

Apr 24, 2004, 12:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 450Apr 23, 1:46 PM CDT
• Mesoscale Discussion 451Apr 23, 2:41 PM CDT
• Mesoscale Discussion 452Apr 23, 3:05 PM CDT
• Mesoscale Discussion 453Apr 23, 4:40 PM CDT
• Mesoscale Discussion 456Apr 23, 7:05 PM CDT
• Mesoscale Discussion 457Apr 23, 7:48 PM CDT
• Mesoscale Discussion 458Apr 23, 7:56 PM CDT
• Mesoscale Discussion 459Apr 23, 9:18 PM CDT
• Mesoscale Discussion 461Apr 23, 11:08 PM CDT

402 
WWUS20 KWNS 232237
SEL3  
SPC WW 232230
OKZ000-TXZ000-240500-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 113
NWS STORM PREDICTION CENTER NORMAN OK
530 PM CDT FRI APR 23 2004

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

       SOUTHWEST OKLAHOMA
       WEST CENTRAL AND NORTHWEST TEXAS

EFFECTIVE THIS FRIDAY AFTERNOON FROM 530 PM UNTIL MIDNIGHT CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 90 STATUTE MILES
EAST AND WEST OF A LINE FROM 40 MILES WEST NORTHWEST OF ARDMORE
OKLAHOMA TO 75 MILES SOUTH SOUTHWEST OF ABILENE TEXAS.

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...THIS SEVERE THUNDERSTORM WATCH REPLACES
TORNADO WATCH NUMBER 109. WATCH NUMBER 109 WILL NOT BE IN EFFECT
AFTER 530 PM CDT. CONTINUE...WW 110...WW 111...WW 112...

DISCUSSION...LINE OF STRONG TO SEVERE THUNDERSTORMS CONTINUES ALONG
DRY LINE EXTENDING FROM NEAR ABI INTO SWRN OK. SUPERCELLS IN SWRN
OK MAY MAINTAIN A THREAT OF LOW LEVEL ROTATION ALONG SLOWLY MOVING
COLD FRONT FOR ANOTHER HOUR OR SO...HOWEVER COOLING BOUNDARY LAYER
AND NEWD STEERING FLOW WILL TEND TO TRACK SUPERCELLS OVER MORE
STABLE SURFACE AIR THIS EVENING. STORMS MAY ALSO BACK-BUILD SWWD
INTO FAR WRN TX LATER IN THE EVENING ALONG NOSE OF LLJ.  LARGE HAIL
WILL BE PRIMARY SEVERE THREAT WITHIN WW. IN ADDITION...ACTIVITY FROM
SOUTH OF SPS TO NEAR ABI MAY PROGRESS EWD ALONG A COMMON OUTFLOW
BOUNDARY INTO THE WARM SECTOR WITH ATTENDANT THREAT OF DAMAGING
WINDS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 23020.


...EVANS

342,0960 312,0983 312,1014 342,0991

Severe Thunderstorm Watches in Texas, 2004Severe Thunderstorm Watches in Oklahoma, 2004Every severe thunderstorm watch in 2004

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.