Severe Thunderstorm Watch 264

Issued

May 7, 2012, 2:56 PM MDT (20:56 UTC)

Expired

May 7, 2012, 10:00 PM MDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

Counties Chaves County, NM, Eddy County, NM, Lea County, NM, Andrews County, TX, Culberson County, TX, Ector County, TX, Gaines County, TX, Jeff Davis County, TX, Loving County, TX, Midland County, TX, Reeves County, TX, Ward County, TX, Winkler County, TX

The Midland/Odessa radar (KMAF), 185 km from the middle of the area, began a volume at 20:56 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

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

30%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 745May 7, 1:24 PM MDT
• Mesoscale Discussion 751May 7, 5:55 PM MDT
• Mesoscale Discussion 755May 7, 8:46 PM MDT

078 
WWUS20 KWNS 072048
SEL4
SPC WW 072048
NMZ000-TXZ000-080400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 264
NWS STORM PREDICTION CENTER NORMAN OK
350 PM CDT MON MAY 7 2012

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

       SOUTHEAST NEW MEXICO
       WESTERN TEXAS

EFFECTIVE THIS MONDAY AFTERNOON AND EVENING FROM 350 PM UNTIL
1100 PM 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 55
STATUTE MILES EITHER SIDE OF A LINE FROM 35 MILES WEST NORTHWEST
OF ROSWELL NEW MEXICO TO 45 MILES SOUTH OF MIDLAND TEXAS.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU4).

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 261...WW 262...WW 263...

DISCUSSION...TSTMS ARE EXPECTED TO INCREASE IN COVERAGE AND
INTENSITY LATE THIS AFTERNOON INTO EVENING WITHIN POST-FRONTAL
UPSLOPE REGIME.  WHILE SOME MIXING OF DEWPOINTS HAS BEEN NOTED...THE
PRESENCE OF STEEP LOW TO MIDLEVEL LAPSE RATES AND 40-50 KT OF SWLY
DEEP-LAYER SHEAR WILL SUPPORT ORGANIZED STORM MODES...INCLUDING
SUPERCELLS...WITH THE PRIMARY HAZARD BEING LARGE HAIL.

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 450. MEAN STORM
MOTION VECTOR 27015.


...MEAD

Severe Thunderstorm Watches in Texas, 2012Severe Thunderstorm Watches in New Mexico, 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.