Tornado Watch 61

Issued

Mar 13, 2007, 6:40 PM CDT (23:40 UTC)

Expired

Mar 14, 2007, 1:33 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Corpus Christi radar (KCRP), 100 km from the middle of the area, began a volume at 23:44 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

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 279Mar 13, 3:35 PM CDT
• Mesoscale Discussion 280Mar 13, 6:20 PM CDT
• Mesoscale Discussion 281Mar 13, 9:35 PM CDT

000
WWUS20 KWNS 132340
SEL1  
SPC WW 132340
TXZ000-CWZ000-140700-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 61
NWS STORM PREDICTION CENTER NORMAN OK
640 PM CDT TUE MAR 13 2007

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

       PARTS OF SOUTH TEXAS
       COASTAL WATERS

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 640 PM
UNTIL 200 AM 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 APPROXIMATELY ALONG AND 55 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 30 MILES WEST NORTHWEST OF
LAREDO TEXAS TO 15 MILES NORTH NORTHEAST OF ANGLETON 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.

DISCUSSION...SEVERE THUNDERSTORMS CONTINUE TO DEVELOP ON BOUNDARY
ACROSS SCENTRAL TX.  WITH APPROACH OF UPPER LOW AND INCREASE IN LLJ
THIS EVENING...SHEAR PROFILES WILL BECOME FAVORABLE FOR SUPERCELLS
AND ISOLATED TORNADOES.  AIR MASS IN WARM SECTOR IS MDTLY UNSTABLE
AND WEAKLY CAPPED.

AVIATION...TORNADOES 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.


...HALES

Tornado Watches in Texas, 2007Every tornado watch in 2007

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.