Severe Thunderstorm Watch 192

Issued

Apr 26, 2012, 2:42 PM MDT (20:42 UTC)

Expired

Apr 26, 2012, 9:00 PM MDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Amarillo radar (KAMA), 174 km from the middle of the area, began a volume at 20:41 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

20%

Ten or more severe hail reports

50%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 592Apr 26, 1:53 PM MDT
• Mesoscale Discussion 598Apr 26, 5:31 PM MDT
• Mesoscale Discussion 599Apr 26, 8:41 PM MDT

627 
WWUS20 KWNS 262044
SEL2
SPC WW 262044
COZ000-KSZ000-NMZ000-OKZ000-TXZ000-270300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 192
NWS STORM PREDICTION CENTER NORMAN OK
345 PM CDT THU APR 26 2012

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

       SOUTHEAST COLORADO
       EXTREME SOUTHWEST KANSAS
       EXTREME NORTHEAST NEW MEXICO
       THE WESTERN OKLAHOMA PANHANDLE
       THE WESTERN TEXAS PANHANDLE AND SOUTH PLAINS

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 345 PM UNTIL
1000 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 50
STATUTE MILES EAST AND WEST OF A LINE FROM 15 MILES NORTH
NORTHWEST OF LAMAR COLORADO TO 25 MILES WEST SOUTHWEST OF
PLAINVIEW TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU2).

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 191...

DISCUSSION...HIGH-BASED THUNDERSTORM DEVELOPMENT IS EXPECTED IN THE
NEXT COUPLE OF HOURS ALONG A SHARPENING LEE TROUGH FROM NE NM INTO
SE CO...AND EWD INTO THE UPSLOPE FLOW REGIME ACROSS THE WRN TX
PANHANDLE.  INITIALLY LARGE TEMPERATURE-DEWPOINT SPREADS AND MODEST
LOW-LEVEL SHEAR SUGGEST THAT LARGE HAIL AND ISOLATED DAMAGING GUSTS
WILL BE THE MAIN THREATS FOR THE NEXT SEVERAL HOURS.  LOW-LEVEL
WINDS WILL RESPOND LATER THIS EVENING TO THE APPROACH OF A STRONG
SHORTWAVE TROUGH NEAR THE FOUR CORNERS...AND LOW-LEVEL MOISTURE WILL
SURGE NWWD.  NEAR AND AFTER SUNSET...THE RISK FOR A COUPLE OF
TORNADOES WILL BEGIN TO INCREASE.  THE TORNADO RISK WILL BE
REVISITED LATER THIS EVENING...WHEN A WATCH REPLACEMENT/UPGRADE
COULD BECOME NECESSARY.

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 500. MEAN STORM
MOTION VECTOR 26015.


...THOMPSON

Severe Thunderstorm Watches in Texas, 2012Severe Thunderstorm Watches in Colorado, 2012Severe Thunderstorm Watches in Kansas, 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.