Tornado Watch 358

Issued

May 24, 2011, 12:27 PM MDT (18:27 UTC)

Expired

May 24, 2011, 6:43 PM MDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Dodge City radar (KDDC), 119 km from the middle of the area, began a volume at 18:27 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

60%

One or more EF2 to EF5 tornadoes

30%

Ten or more severe wind reports

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

50%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 922May 24, 9:37 AM MDT
• Mesoscale Discussion 927May 24, 11:59 AM MDT
• Mesoscale Discussion 932May 24, 1:35 PM MDT

882 
WWUS20 KWNS 241826
SEL8
SPC WW 241826
COZ000-KSZ000-250300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 358
NWS STORM PREDICTION CENTER NORMAN OK
125 PM CDT TUE MAY 24 2011

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

       EASTERN COLORADO
       WESTERN KANSAS

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 125 PM UNTIL
1000 PM CDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 5 MILES NORTH OF LAMAR
COLORADO TO 60 MILES SOUTH OF RUSSELL KANSAS.  FOR A COMPLETE
DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE
(WOUS64 KWNS WOU8).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND 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.

OTHER WATCH INFORMATION...CONTINUE...WW 354...WW 355...WW
356...WW 357...

DISCUSSION...DEEP-LAYER FORCING FOR ASCENT ATTENDANT TO NEGATIVELY
TILTED SHORTWAVE TROUGH EMERGING INTO THE HIGH PLAINS WILL SUPPORT A
CONTINUED INCREASE IN STORMS COVERAGE AND INTENSITY THIS AFTERNOON
INTO EVENING.  STEEP MIDLEVEL LAPSE RATES COUPLED WITH BOUNDARY
LAYER DEWPOINTS IN THE 50S WILL YIELD A MODERATELY UNSTABLE AIR MASS
WITH MLCAPE VALUES OF 1000-1500 J/KG.  WHEN COUPLED WITH PRONOUNCED
VEERING OF WINDS WITH HEIGHT...SETUP WILL FAVOR THE DEVELOPMENT OF
SUPERCELLS CAPABLE OF LARGE HAIL AND TORNADOES.

AVIATION...TORNADOES AND 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 21030.


...MEAD

Tornado Watches in Kansas, 2011Tornado Watches in Colorado, 2011Every tornado watch in 2011

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.