Tornado Watch 212

Issued

May 2, 2007, 5:53 PM CDT (22:53 UTC)

Expired

May 3, 2007, 1:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

70 kt

The Laughlin AFB radar (KDFX), 99 km from the middle of the area, began a volume at 22:55 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

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 649May 2, 3:08 PM CDT
• Mesoscale Discussion 651May 2, 5:08 PM CDT
• Mesoscale Discussion 654 Tornado watch 211May 2, 6:54 PM CDT
• Mesoscale Discussion 655May 2, 7:24 PM CDT

000
WWUS20 KWNS 022256
SEL2  
SPC WW 022256
TXZ000-030600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 212
NWS STORM PREDICTION CENTER NORMAN OK
550 PM CDT WED MAY 2 2007

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

       CENTRAL AND SOUTHERN TEXAS 

EFFECTIVE THIS WEDNESDAY AFTERNOON AND THURSDAY MORNING FROM 550
PM UNTIL 100 AM 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 APPROXIMATELY ALONG AND 95 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES NORTHWEST OF AUSTIN
TEXAS TO 75 MILES WEST SOUTHWEST OF COTULLA TEXAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU2).

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 209...WW 210...WW 211...

DISCUSSION...VERY MOIST AIR WILL CONTINUE TO STREAM NNW INTO ERN
PARTS OF THE TX HILL COUNTRY AND INTO AREA E OF THE TX BIG BEND THIS
EVENING AS APPROACH OF SRN NM UPR LOW ENHANCES LLJ AND MID LEVEL WLY
FLOW INCREASES TO AOA 40 KTS.  GIVEN THIS SETUP...EXISTING STORMS/
SUPERCELLS ALONG NE/SW CONFLUENCE AXIS NOW EXTENDING FROM NEAR JCT
TO NEAR DRT SHOULD SUSTAIN THEMSELVES AS THEY MOVE INTO REGION OF
INCREASING CIN TOWARD THE I-35 CORRIDOR.  POTENTIAL WILL EXIST FOR A
FEW TORNADOES...IN ADDITION TO LARGE HAIL AND BOWING SEGMENTS WITH
HIGH WIND...GIVEN QUALITY OF MOISTURE INFLOW...SLIGHTLY BACKED
NEAR-SFC FLOW AND SEMI-DISCRETE NATURE OF STORMS.

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.


...CORFIDI

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.