Tornado Watch 37

Issued

Feb 5, 2008, 3:09 PM CST (21:09 UTC)

Expired

Feb 6, 2008, 12:00 AM CST

In force

9 hr

Issued by

the Storm Prediction Center

Particularly dangerous situation

Yes

Largest hail expected

2 in

Strongest gust expected

60 kt

The Memphis radar (KNQA), 30 km from the middle of the area, began a volume at 21:11 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

90%

One or more EF2 to EF5 tornadoes

70%

Ten or more severe wind reports

90%

One or more gusts of 65 knots or more

70%

Ten or more severe hail reports

80%

One or more hailstones of 2 inches or more

40%

Six or more combined severe hail and wind reports

95%

• Mesoscale Discussion 157Feb 5, 11:16 AM CST
• Mesoscale Discussion 158Feb 5, 12:11 PM CST
• Mesoscale Discussion 163Feb 5, 5:15 PM CST
• Mesoscale Discussion 165Feb 5, 5:39 PM CST
• Mesoscale Discussion 167Feb 5, 6:15 PM CST
• Mesoscale Discussion 169Feb 5, 8:07 PM CST
• Mesoscale Discussion 170Feb 5, 9:19 PM CST
• Mesoscale Discussion 171Feb 5, 9:39 PM CST

000
WWUS20 KWNS 052112
SEL7  
SPC WW 052112
ARZ000-ILZ000-INZ000-KYZ000-MOZ000-MSZ000-TNZ000-060600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 37
NWS STORM PREDICTION CENTER NORMAN OK
310 PM CST TUE FEB 5 2008

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

       EASTERN ARKANSAS
       SOUTHERN ILLINOIS
       SOUTHWEST INDIANA
       WESTERN KENTUCKY
       SOUTHEAST MISSOURI
       CENTRAL AND NORTHERN MISSISSIPPI
       WESTERN TENNESSEE

EFFECTIVE THIS TUESDAY AFTERNOON FROM 310 PM UNTIL MIDNIGHT CST.

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

DESTRUCTIVE TORNADOES...LARGE 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 85 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES NORTH OF CAPE
GIRARDEAU MISSOURI TO 25 MILES EAST OF JACKSON MISSISSIPPI.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 34...WW 35...WW 36...

DISCUSSION...COMPLEX SITUATION EVOLVING THIS AFTERNOON WITH
SCATTERED THUNDERSTORMS DEVELOPING IN THE OPEN WARM SECTOR FROM MS
NWD INTO WRN TN/KY.  ADDITIONAL SEVERE STORMS WILL MOVE INTO NW MS
FROM AR/LA...AND INTO TN/KY/IL/INDIANA FROM THE W BY EARLY TONIGHT
IN ASSOCIATION WITH THE PRIMARY SYNOPTIC SYSTEM NOW LOCATED FARTHER
TO THE W.  MODERATE INSTABILITY AND BOUNDARY LAYER DEWPOINTS IN THE
60S COVER A WIDE AREA...WHILE LOCAL VWP/S AND FORECAST SOUNDINGS
SHOW STRONG VERTICAL SHEAR OVER THE MAJORITY OF THE WARM SECTOR. 
THE NET RESULT WILL BE A THREAT FOR SCATTERED TORNADIC SUPERCELLS
THROUGH THE AFTERNOON...FOLLOWED BY SUPERCELLS/BOW ECHOES WITH THE
LATER CONVECTION TONIGHT.  A FEW STRONG TORNADOES AND LARGE HAIL
WILL BE THE MAIN SEVERE THREATS THIS AFTERNOON...WHILE THE DAMAGING
WIND THREAT WILL INCREASE AS WELL INTO TONIGHT AS THE MORE
WIDESPREAD CONVECTION MOVES E OF THE MS RIVER.

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
450. MEAN STORM MOTION VECTOR 23050.


...THOMPSON

Tornado Watches in Mississippi, 2008Tornado Watches in Kentucky, 2008Tornado Watches in Illinois, 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.