Severe Thunderstorm Watch 921

Issued

Sep 10, 2003, 2:55 PM CDT (19:55 UTC)

Expired

Sep 10, 2003, 8:00 PM CDT

In force

5 hr

Issued by

the Storm Prediction Center

The Dodge City radar (KDDC), 138 km from the middle of the area, began a volume at 19:54 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.

• Mesoscale Discussion 2364Sep 10, 2:08 PM CDT
• Mesoscale Discussion 2368Sep 10, 6:42 PM CDT

000 
WWUS20 KWNS 101959
SEL1  
SPC WW 101955
KSZ000-OKZ000-TXZ000-110100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 921 
NWS STORM PREDICTION CENTER NORMAN OK 
255 PM CDT WED SEP 10 2003

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

       WEST CENTRAL AND SOUTHWEST KANSAS
       WESTERN OKLAHOMA AND THE PANHANDLE
       TEXAS PANHANDLE

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 255 PM UNTIL
800 PM 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 55 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES NORTHWEST OF RUSSELL KANSAS
TO 120 MILES SOUTH SOUTHWEST OF GAGE 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 919...WW 920...


DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO INTENSIFY
DURING THE NEXT FEW HOURS ACROSS THE TX/OK PANHANDLES AND SOUTHWEST
KS.  A VERY UNSTABLE AIRMASS HAS DEVELOPED IN THIS REGION WITH
MLCAPE VALUES OVER 3000 J/KG AND SURFACE DEWPOINTS CONTINUING TO
INCREASE.  VERTICAL SHEAR IS RATHER WEAK SOUTH OF THE OK/KS BORDER. 
HOWEVER...DEGREE OF INSTABILITY AND LARGE SCALE UVVS ASSOCIATED WITH
APPROACHING UPPER TROUGH MAY BE SUFFICIENT FOR A FEW SEVERE STORMS
CAPABLE OF DAMAGING WINDS AND LARGE HAIL.

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 24020.


...HART

391,0982 344,0993 344,1013 391,1002

Severe Thunderstorm Watches in Kansas, 2003Severe Thunderstorm Watches in Texas, 2003Severe Thunderstorm Watches in Oklahoma, 2003Every severe thunderstorm watch in 2003

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.