Tornado Watch 741

Issued

Jul 23, 2008, 7:09 PM CDT (00:09 UTC)

Expired

Jul 24, 2008, 7:00 AM CDT

In force

12 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

70 kt

The Corpus Christi radar (KCRP), 57 km from the middle of the area, began a volume at 00:08 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.

Two or more tornadoes

30%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

5%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

30%

• Mesoscale Discussion 1881Jul 23, 3:52 PM CDT
• Mesoscale Discussion 1882Jul 23, 5:38 PM CDT
• Mesoscale Discussion 1890Jul 24, 6:24 AM CDT

000
WWUS20 KWNS 240011
SEL1  
SPC WW 240011
TXZ000-CWZ000-241200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 741
NWS STORM PREDICTION CENTER NORMAN OK
710 PM CDT WED JUL 23 2008

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

       SOUTH TEXAS
       COASTAL WATERS

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 710 PM
UNTIL 700 AM CDT.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EITHER SIDE OF A LINE FROM 55 MILES NORTHWEST OF ALICE
TEXAS TO 50 MILES SOUTHEAST OF CORPUS CHRISTI TEXAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU1).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 735. WATCH NUMBER 735 WILL NOT BE IN EFFECT AFTER
710 PM CDT. CONTINUE...WW 738...WW 739...WW 740...

DISCUSSION...SOME THREAT STILL EXISTS FOR ISOLATED TORNADOES EITHER
WITHIN THE REMNANT EYEWALL OF DOLLY OR WITHIN FEEDER BAND CONVECTION
SPREADING ACROSS THE TX COAST OVER THE NEXT SEVERAL HOURS. STRONGEST
LOW LEVEL SHEAR WILL EXIST NEAR THE CENTER AND NORTH AND EAST OF THE
TRACK FORECAST WHERE 50-70KT LOW LEVEL FLOW EXISTS IN THE LOWEST 1KM
OF THE SURFACE. DESPITE GENERAL LACK OF PERSISTENT UPDRAFTS WITH
LIGHTNING...GENERALLY LOW-TOPPED PERSISTENT CORES WITHIN VERY MOIST
TROPICAL AIR MASS MAY PRODUCE BRIEF TORNADOES THROUGH EARLY
THURSDAY.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 12025.


...CARBIN

Tornado Watches in Texas, 2008Every tornado watch in 2008

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.