Severe Thunderstorm Watch 341

Issued

Jun 2, 2012, 2:33 PM MDT (20:33 UTC)

Expired

Jun 2, 2012, 10:00 PM MDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

70 kt

The Pueblo radar (KPUX), 88 km from the middle of the area, began a volume at 20:36 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

50%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

20%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 1021Jun 2, 1:38 PM MDT
• Mesoscale Discussion 1022Jun 2, 4:57 PM MDT
• Mesoscale Discussion 1024Jun 2, 7:12 PM MDT

323 
WWUS20 KWNS 022038
SEL1
SPC WW 022038
COZ000-KSZ000-NMZ000-OKZ000-TXZ000-030400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 341
NWS STORM PREDICTION CENTER NORMAN OK
235 PM MDT SAT JUN 2 2012

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

       EASTERN COLORADO
       WESTERN KANSAS
       NORTHEAST NEW MEXICO
       OKLAHOMA PANHANDLE
       TEXAS PANHANDLE

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 235 PM UNTIL
1000 PM MDT.

HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
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 65 MILES NORTH
NORTHEAST OF LIMON COLORADO TO 10 MILES SOUTH SOUTHEAST OF
DALHART 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 340...

DISCUSSION...HIGH-BASED STORMS MOVING ACROSS THE FRONT RANGE AND
NERN NM MOUNTAINS WILL CONTINUE TO SPREAD EAST INTO A WARM AND
MODERATELY UNSTABLE AIRMASS ACROSS ERN CO/NERN NM/WRN KS AND THE
OK/TX PNHDLS. BAND OF MODEST WLY MID LEVEL FLOW ACCOMPANYING A WEAK
SHORT WAVE TROUGH...ATOP WEAK SELY LOW LEVEL FLOW...WILL CONTRIBUTE
TO SUFFICIENT DEEP SHEAR FOR STORM UPDRAFTS TO PERSIST. INITIAL
HAZARDS WILL LIKELY TAKE THE FORM OF STRONG TO SEVERE DOWNBURST
WINDS GIVEN EVAPORATIONAL COOLING INTO WARM TO HOT DEEPLY MIXED
SUB-CLOUD AIRMASS. WITH TIME...A FEW SUPERCELLS WITH HAIL MAY
DEVELOP. STORMS MAY MERGE LATER THIS AFTERNOON AND INTO THE EVENING
WITH ONE OR TWO SMALL CONVECTIVE COMPLEXES POSING A WIND THREAT
SPREADING EAST/SOUTHEAST INTO WRN KS AND/OR OK/TX PNHDLS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
MOTION VECTOR 26030.


...CARBIN

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