Tornado Watch 246

Issued

May 2, 2008, 12:53 AM CDT (05:53 UTC)

Expired

May 2, 2008, 6:34 AM CDT

In force

6 hr

Issued by

the Storm Prediction Center

Largest hail expected

2 in

Strongest gust expected

60 kt

The Pleasant Hill radar (KEAX), 45 km from the middle of the area, began a volume at 05:55 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

50%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

60%

One or more hailstones of 2 inches or more

30%

Six or more combined severe hail and wind reports

80%

• Mesoscale Discussion 765May 1, 10:04 PM CDT
• Mesoscale Discussion 766May 1, 11:29 PM CDT
• Mesoscale Discussion 768May 2, 4:22 AM CDT

000
WWUS20 KWNS 020554
SEL6  
SPC WW 020554
KSZ000-MOZ000-021300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 246
NWS STORM PREDICTION CENTER NORMAN OK
1255 AM CDT FRI MAY 2 2008

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

       EASTERN KANSAS
       WESTERN AND NORTHERN MISSOURI

EFFECTIVE THIS FRIDAY MORNING FROM 1255 AM UNTIL 800 AM 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 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 55 MILES NORTH OF CHILLICOTHE
MISSOURI TO 35 MILES WEST SOUTHWEST OF JOPLIN MISSOURI.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU6).

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...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 244. WATCH NUMBER 244 WILL NOT BE IN EFFECT AFTER
1255 AM CDT. CONTINUE...WW 245...

DISCUSSION...CONVECTION HAS EVOLVED INTO MORE OF SQUALL LINE ON THE
SURGING COLD FRONT AND IN ADVANCE OF THE SURFACE LOW DEVELOPING NEWD
FROM NRN OK.  DESPITE THE LINEAR STRUCTURE TO THE STORMS...LOW-LEVEL
SHEAR REMAINS STRONG IN THE WARM SECTOR.  THE STRONGER STORMS WILL
BE CAPABLE OF PRODUCING A COUPLE OF TORNADOES...ESPECIALLY WITH ANY
DISCRETE CELLS IN THE LINE...OR WHERE THE LINE INTERACTS WITH A
RETREATING BOUNDARY ACROSS NW MO.  OTHERWISE...DAMAGING WINDS AND
LARGE HAIL ARE LIKELY THROUGH THE OVERNIGHT HOURS.

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
550. MEAN STORM MOTION VECTOR 24035.


...THOMPSON

Tornado Watches in Missouri, 2008Tornado Watches in Kansas, 2008Every tornado watch in 2008

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.