Tornado Watch 146

Issued

Apr 23, 2003, 11:50 AM CDT (16:50 UTC)

Expired

Apr 23, 2003, 6:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

• Mesoscale Discussion 540Apr 23, 10:30 AM CDT
• Mesoscale Discussion 542Apr 23, 1:26 PM CDT
• Mesoscale Discussion 544Apr 23, 2:44 PM CDT
• Mesoscale Discussion 545Apr 23, 3:08 PM CDT
• Mesoscale Discussion 547Apr 23, 5:36 PM CDT
• Mesoscale Discussion 548Apr 23, 5:47 PM CDT

000 
WWUS20 KWNS 231653
SEL6  
SPC WW 231650
OKZ000-TXZ000-232300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 146 
NWS STORM PREDICTION CENTER NORMAN OK 
1150 AM CDT WED APR 23 2003

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

       SOUTHWEST OKLAHOMA
       WEST CENTRAL AND NORTHWEST TEXAS

EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1150 AM UNTIL 
600 PM CDT.

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

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 10 MILES NORTHEAST OF ALTUS OKLAHOMA TO 20 MILES
SOUTHEAST OF SAN ANGELO 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.




DISCUSSION...THUNDERSTORMS ARE DEVELOPING SWD ALONG A
DRYLINE/PACIFIC COLD FRONT FROM W OF CDS TO E OF LBB AND MAF.  THIS
CONVECTION SHOULD DEVELOP INTO A SQUALL LINE WHILE MOVING EWD THIS
AFTERNOON...WITH AN INCREASING THREAT OF LARGE HAIL AND DAMAGING
WINDS.	THE GREATER THREAT FOR SUPERCELLS/TORNADOES WILL BE ACROSS
NW TX WHERE MORE DISCRETE STORMS MAY FORM E OF THE DRYLINE...AND
MOVE INTO THE AREA BETWEEN ABI AND CDS THIS AFTERNOON.

AVIATION...TORDADOES AND 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 24030.


...THOMPSON

344,0974 310,0985 310,1013 344,1002 

WWUS20 KWNS 231653
SEL6  
SPC WW 231650
OKZ000-TXZ000-232300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 146 
NWS STORM PREDICTION CENTER NORMAN OK 
1150 AM CDT WED APR 23 2003

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

       SOUTHWEST OKLAHOMA
       WEST CENTRAL AND NORTHWEST TEXAS

EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1150 AM UNTIL 
600 PM CDT.

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

THE TORNADO WATCH AREA IS ALONG AND 75 STATUTE MILES EAST AND WEST
OF A LINE FROM 10 MILES NORTHEAST OF ALTUS OKLAHOMA TO 20 MILES
SOUTHEAST OF SAN ANGELO 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.




DISCUSSION...THUNDERSTORMS ARE DEVELOPING SWD ALONG A
DRYLINE/PACIFIC COLD FRONT FROM W OF CDS TO E OF LBB AND MAF.  THIS
CONVECTION SHOULD DEVELOP INTO A SQUALL LINE WHILE MOVING EWD THIS
AFTERNOON...WITH AN INCREASING THREAT OF LARGE HAIL AND DAMAGING
WINDS.	THE GREATER THREAT FOR SUPERCELLS/TORNADOES WILL BE ACROSS
NW TX WHERE MORE DISCRETE STORMS MAY FORM E OF THE DRYLINE...AND
MOVE INTO THE AREA BETWEEN ABI AND CDS THIS AFTERNOON.

AVIATION...TORDADOES AND 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 24030.


...THOMPSON

344,0974 310,0985 310,1013 344,1002

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.