Tornado Watch 185

Issued

Apr 25, 2007, 1:40 AM CDT (06:40 UTC)

Expired

Apr 25, 2007, 9:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

70 kt

The Houston radar (KHGX), 97 km from the middle of the area, began a volume at 06:42 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

50%

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

10%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 575Apr 24, 11:58 PM CDT
• Mesoscale Discussion 577Apr 25, 1:14 AM CDT
• Mesoscale Discussion 579Apr 25, 4:29 AM CDT
• Mesoscale Discussion 581Apr 25, 7:36 AM CDT
• Mesoscale Discussion 582Apr 25, 9:00 AM CDT

000
WWUS20 KWNS 250639
SEL5  
SPC WW 250639
TXZ000-CWZ000-251400-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 185
NWS STORM PREDICTION CENTER NORMAN OK
140 AM CDT WED APR 25 2007

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

       LARGE PART OF SOUTHEAST TEXAS
       COASTAL WATERS

EFFECTIVE THIS WEDNESDAY MORNING FROM 140 AM UNTIL 900 AM CDT.

TORNADOES...HAIL TO 2 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 75 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH OF VICTORIA
TEXAS TO 35 MILES EAST NORTHEAST OF LUFKIN TEXAS.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU5).

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 182...WW 183...WW 184...

DISCUSSION...SEVERE MCS SCENTRAL TX EXPECTED TO CONTINUE DEVELOPING
E/ENE ACROSS WATCH.  WITH A VERY MOIST/MODERATELY UNSTABLE AIR MASS
AND 40-50KT OF DEEP LAYER SHEAR...POTENTIAL FOR EMBEDDED
SUPERCELLS/TORNADOS WILL CONTINUE ALONG/AHEAD OF MCS.  WIND DAMAGE
WILL BE PREDOMINANT THREAT AS LINE SEGMENT/BOWS DEVELOP EWD.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 26035.


...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.