Severe Thunderstorm Watch 385

Issued

Jun 12, 2012, 9:26 PM CDT (02:26 UTC)

Expired

Jun 13, 2012, 4:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Lubbock radar (KLBB), 37 km from the middle of the area, began a volume at 02:27 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

40%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

50%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 1147Jun 12, 7:38 PM CDT
• Mesoscale Discussion 1148Jun 12, 9:11 PM CDT
• Mesoscale Discussion 1149Jun 12, 11:11 PM CDT

828 
WWUS20 KWNS 130227
SEL5
SPC WW 130227
TXZ000-130900-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 385
NWS STORM PREDICTION CENTER NORMAN OK
930 PM CDT TUE JUN 12 2012

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

       WEST TEXAS AND THE TEXAS PANHANDLE

EFFECTIVE THIS TUESDAY NIGHT AND WEDNESDAY MORNING FROM 930 PM
UNTIL 400 AM CDT.

HAIL TO 2 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 70
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH OF
AMARILLO TEXAS TO 45 MILES SOUTH SOUTHEAST OF MIDLAND TEXAS.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU5).

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 382...WW 383...

DISCUSSION...CLUSTERS OF STORMS WILL CONTINUE TO MOVE ESEWD ACROSS
THE PANHANDLE IN A ZONE OF MOISTENING UPSLOPE FLOW...AND ALONG A
RESIDUAL OUTFLOW BOUNDARY INVOF MAF.  DESPITE THE LOSS OF DAYTIME
HEATING...LOW-LEVEL MOISTURE SPREADING WWD/NWWD WILL HELP MAINTAIN
INSTABILITY INTO THE OVERNIGHT HOURS ACROSS THE HIGH PLAINS...AND
THE RISK FOR LARGE HAIL/DAMAGING WINDS IS EXPECTED TO PERSIST.

AVIATION...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 550. MEAN STORM
MOTION VECTOR 30025.


...THOMPSON

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.