Severe Thunderstorm Watch 663

Issued

Oct 13, 2012, 3:13 PM CDT (20:13 UTC)

Expired

Oct 13, 2012, 8:48 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Wichita radar (KICT), 132 km from the middle of the area, began a volume at 20:14 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

40%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

40%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 2047Oct 13, 2:00 PM CDT
• Mesoscale Discussion 2050Oct 13, 6:26 PM CDT

653 
WWUS20 KWNS 132015
SEL3  
SPC WW 132015
KSZ000-140300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 663
NWS STORM PREDICTION CENTER NORMAN OK
315 PM CDT SAT OCT 13 2012

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

       CENTRAL KANSAS

EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 315 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 65
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH
NORTHEAST OF CONCORDIA KANSAS TO 40 MILES EAST SOUTHEAST OF
MEDICINE LODGE KANSAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).

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 661...WW 662...

DISCUSSION...SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP SOON IN
THE AREA NEAR PRATT...WHERE VISIBLE SATELLITE IMAGERY SHOWS
DEEPENING CUMULUS ALONG THE SURFACE COLD FRONT.  CONTINUED SURFACE
HEATING IN ADVANCE OF THE FRONT...AND THE APPROACH OF A STRONG
MIDLEVEL TROUGH FROM WRN KS...WILL PROMOTE ADDITIONAL THUNDERSTORM
DEVELOPMENT THROUGH THE AFTERNOON/EVENING ACROSS CENTRAL KS.  LOCAL
VWP/PROFILER OBSERVATIONS SHOW THAT HODOGRAPHS ARE BECOMING MORE
UNIDIRECTIONAL WITH TIME...THOUGH THERE MIGHT BE A SMALL WINDOW OF
OPPORTUNITY FOR A TORNADO IN S CENTRAL KS.  OTHERWISE...CLUSTERS AND
LINE SEGMENTS SHOULD BE THE PRIMARY CONVECTIVE MODE...WITH THE RISK
FOR LARGE HAIL AND DAMAGING WINDS.

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 24040.


...THOMPSON

Severe 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.