Tornado Watch 249

Issued

May 11, 2005, 2:10 PM MDT (20:10 UTC)

Expired

May 11, 2005, 9:00 PM MDT

In force

7 hr

Issued by

the Storm Prediction Center

The Goodland radar (KGLD), 74 km from the middle of the area, began a volume at 20:10 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.

• Mesoscale Discussion 820 Severe thunderstorm potentialMay 11, 1:36 PM MDT
• Mesoscale Discussion 825May 11, 4:13 PM MDT
• Mesoscale Discussion 830May 11, 7:01 PM MDT
• Mesoscale Discussion 832May 11, 8:26 PM MDT

000 
WWUS20 KWNS 112008
SEL9  
SPC WW 112008
COZ000-KSZ000-NEZ000-120300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 249
NWS STORM PREDICTION CENTER NORMAN OK
310 PM CDT WED MAY 11 2005

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

       EAST CENTRAL AND SOUTHEAST COLORADO
       WESTERN KANSAS
       FAR SOUTHWESTERN NEBRASKA

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 310 PM UNTIL
1000 PM CDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 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 85 STATUTE MILES
EAST AND WEST OF A LINE FROM 60 MILES NORTH OF GOODLAND KANSAS TO
10 MILES EAST OF LIBERAL KANSAS.  FOR A COMPLETE DEPICTION OF THE
WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).

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 245...WW 246...WW 247...WW
248...

DISCUSSION...DEEPLY MIXED...MOIST BOUNDARY LAYER HAS TAKEN SHAPE
OVER WRN KS WHERE MLCAPES ARE NOW IN EXCESS OF 2000 J/KG AND SFC-6
KM SHEAR IS NEAR 50 KT.  DEEP MIXING AND CONVERGENCE INVOF SURFACE
LOW AND DRY LINE OVER FAR ERN CO/WRN KS WILL LIKELY INITIATE RAPID
SEVERE THUNDERSTORM DEVELOPMENT BY 21-22Z.  PARAMETERS FAVOR
TORNADIC SUPERCELLS WITH VERY LARGE HAIL.  TORNADOES COULD BECOME
QUITE STRONG INTO WRN KS...ESPECIALLY NWRN KS INTO FAR SWRN NEB.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 23030.


...EVANS

401,1000 370,0991 370,1021 401,1031

Tornado Watches in Kansas, 2005Tornado Watches in Colorado, 2005Tornado Watches in Nebraska, 2005Every tornado watch in 2005

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.