Severe Thunderstorm Watch 381

Issued

Jun 12, 2012, 11:00 AM CDT (16:00 UTC)

Expired

Jun 12, 2012, 5:00 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

3 in

Strongest gust expected

60 kt

The Dallas/Ft Worth radar (KFWS), 52 km from the middle of the area, began a volume at 16:03 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

20%

One or more EF2 to EF5 tornadoes

5%

Ten or more severe wind reports

60%

One or more gusts of 65 knots or more

40%

Ten or more severe hail reports

80%

One or more hailstones of 2 inches or more

70%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 1138Jun 12, 10:32 AM CDT
• Mesoscale Discussion 1144Jun 12, 3:28 PM CDT

195 
WWUS20 KWNS 121602
SEL1
SPC WW 121602
TXZ000-122200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 381
NWS STORM PREDICTION CENTER NORMAN OK
1100 AM CDT TUE JUN 12 2012

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

       NORTH TEXAS

EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 1100 AM UNTIL
500 PM CDT.

HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 60
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 60 MILES NORTH
NORTHWEST OF BROWNWOOD TEXAS TO 50 MILES EAST NORTHEAST OF
CORSICANA TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU1).

REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
FAVORABLE FOR 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. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
DO PRODUCE TORNADOES.

OTHER WATCH INFORMATION...CONTINUE...WW 379...WW 380...

DISCUSSION...LATEST INDICATIONS ARE THAT STRONG TO SEVERE STORMS
WILL CONTINUE TO DEVELOP AND TRACK SEWD ACROSS N TX THROUGH THE
AFTERNOON. THIS ACTIVITY WILL BE SUSTAINED ALONG A DEEP-LAYER
FRONTAL ZONE DRAPED ACROSS THE REGION WITH FURTHER SUPPORT FOR
UPWARD MOTION BEING PROVIDED BY A SUBTLE SHORT WAVE TROUGH EMBEDDED
WITHIN MODEST WNWLY FLOW ALOFT. AIR MASS AHEAD OF THE ONGOING STORMS
SHOULD CONTINUE TO DESTABILIZE SUFFICIENTLY TO SUPPORT BOTH DAMAGING
WIND AND VERY LARGE HAIL THREATS THROUGH THE AFTERNOON.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
MOTION VECTOR 33030.


...CARBIN

Severe Thunderstorm Watches in Texas, 2012Every severe thunderstorm watch in 2012

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.