Severe Thunderstorm Watch 784

Issued

Sep 13, 2005, 3:00 PM CDT (20:00 UTC)

Expired

Sep 13, 2005, 9:05 PM CDT

In force

6 hr

Issued by

the Storm Prediction Center

The Wichita radar (KICT), 37 km from the middle of the area, began a volume at 20:02 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 2187Sep 13, 2:17 PM CDT
• Mesoscale Discussion 2191Sep 13, 7:29 PM CDT
• Mesoscale Discussion 2192Sep 13, 9:03 PM CDT

000 
WWUS20 KWNS 132002
SEL4  
SPC WW 132002
KSZ000-OKZ000-140300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 784
NWS STORM PREDICTION CENTER NORMAN OK
300 PM CDT TUE SEP 13 2005

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

       SOUTHEASTERN AND SOUTH CENTRAL KANSAS
       NORTHEASTERN AND NORTH CENTRAL OKLAHOMA

EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 300 PM UNTIL
1000 PM CDT.

HAIL TO 2.5 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 90
STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHWEST OF
EMPORIA KANSAS TO 35 MILES SOUTH SOUTHEAST OF PONCA CITY OKLAHOMA.
 FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU4).

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 781...WW 782...WW 783...

DISCUSSION...AIR MASS IS EXTREMELY UNSTABLE AND CAP IS STEADILY
WEAKENING AHEAD OF SURFACE COLD FRONT MOVING SLOWLY SSEWD ACROSS
CENTRAL/NERN KS ATTM.  EXPECT THUNDERSTORMS WILL DEVELOP AND QUICKLY
BECOME SEVERE PRIOR TO 4-5 PM OVER PARTS OF THIS AREA. IN
ADDITION...SURFACE OUTFLOW BOUNDARY FROM EARLIER CONVECTION EXTENDS
NW-SE ACROSS SERN KS AND MAY PROVIDE ADDITIONAL FOCUS FOR
THUNDERSTORM DEVELOPMENT.  FORECAST DEEP LAYER SHEAR OF 35-45 KT
WOULD FAVOR ORGANIZED LINES AND SUPERCELLS.  VERY LARGE HAIL AND
ISOLATED DAMAGING WINDS WILL BE PRIMARY SEVERE THREATS AS STORMS
SPREAD EWD THROUGH THE EVENING.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 25020.


...EVANS

383,0945 361,0951 361,0982 383,0981

Severe Thunderstorm Watches in Kansas, 2005Severe Thunderstorm Watches in Oklahoma, 2005Every severe thunderstorm 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.