Tornado Watch 290

Issued

May 7, 2003, 5:00 PM CDT (22:00 UTC)

Expired

May 7, 2003, 11:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 824May 7, 2:17 PM CDT
• Mesoscale Discussion 828May 7, 5:38 PM CDT
• Mesoscale Discussion 833May 7, 8:01 PM CDT
• Mesoscale Discussion 835May 7, 10:35 PM CDT

000 
WWUS20 KWNS 072156
SEL0  
SPC WW 072200
OKZ000-TXZ000-080400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 290 
NWS STORM PREDICTION CENTER NORMAN OK 
500 PM CDT WED MAY 7 2003

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

       SOUTHWEST OKLAHOMA
       NORTHWEST TEXAS

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 500 PM UNTIL
1100 PM CDT.

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

THE TORNADO WATCH AREA IS ALONG AND 90 STATUTE MILES EAST AND WEST
OF A LINE FROM 35 MILES WEST NORTHWEST OF CLINTON OKLAHOMA TO 25
MILES SOUTH SOUTHWEST OF ABILENE 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 286...WW 287...WW 288...WW
289...


DISCUSSION...VERY UNSTABLE AIRMASS MOVING NWWD INTO WATCH AREA AHEAD
OF DRY LINE.  WITH CAP ABOUT GONE...SEVERE THUNDERSTORMS WILL
DEVELOP RAPIDLY ALONG/E OF DRY LINE.  STRONG DEEP LAYER SHEAR WITH
VEERING LOW LEVEL PROFILES SUPPORT SUPERCELLS.	WITH MUCAPES TO 4000
J/KG LARGE HAIL LIKELY ALONG WITH TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.
MEAN STORM MOTION VECTOR 24035.


...HALES

352,0980 320,0981 320,1012 352,1012

Tornado Watches in Texas, 2003Tornado Watches in Oklahoma, 2003Every tornado 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.