Tornado Watch 378

Issued

Jun 10, 2007, 4:33 PM CDT (21:33 UTC)

Expired

Jun 11, 2007, 12:00 AM CDT

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Springfield radar (KSGF), 124 km from the middle of the area, began a volume at 21:37 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

40%

One or more EF2 to EF5 tornadoes

20%

Ten or more severe wind reports

40%

One or more gusts of 65 knots or more

20%

Ten or more severe hail reports

70%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 1081Jun 10, 12:33 PM CDT
• Mesoscale Discussion 1085Jun 10, 3:35 PM CDT
• Mesoscale Discussion 1086Jun 10, 4:16 PM CDT
• Mesoscale Discussion 1088Jun 10, 6:43 PM CDT
• Mesoscale Discussion 1090Jun 10, 8:06 PM CDT

000
WWUS20 KWNS 102135
SEL8  
SPC WW 102135
KSZ000-MOZ000-OKZ000-110500-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 378
NWS STORM PREDICTION CENTER NORMAN OK
435 PM CDT SUN JUN 10 2007

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

       SOUTHEAST KANSAS
       SOUTHWEST MISSOURI
       NORTHEAST OKLAHOMA

EFFECTIVE THIS SUNDAY AFTERNOON FROM 435 PM UNTIL MIDNIGHT 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 50 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 35 MILES SOUTHWEST OF
CHANUTE KANSAS TO 30 MILES NORTHEAST OF SPRINGFIELD MISSOURI. 
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 376...WW 377...

DISCUSSION...TSTMS/SUPERCELLS EXPECTED TO DEVELOP/PERSIST IN LOW
LEVEL INSTABILITY/CONVERGENCE ZONE ALONG AND JUST E OF WWD-MOVING
COMPOSITE OUTFLOW BOUNDARY IN SW MO/NW AR.  PROFILER AND VWP DATA
SUGGEST THAT DEEP WSWLY SHEAR IS SUFFICIENT FOR SUSTAINED
SUPERCELLS...WITH FLOW APPARENTLY BEING ENHANCED BY JET STREAK
ASSOCIATED WITH ERN MO MCV.  GIVEN MOIST/SLOWLY HEATING BOUNDARY
LAYER E OF BOUNDARY...SETUP MAY SUPPORT TORNADOES IN ADDITION TO
LARGE HAIL/HIGH WIND...ESPECIALLY IN A NARROW CORRIDOR NEAR THE
SLOWLY-MOVING BOUNDARY.

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 26025.


...CORFIDI

Tornado Watches in Missouri, 2007Tornado Watches in Kansas, 2007Tornado Watches in Oklahoma, 2007Every tornado watch in 2007

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.