Tornado Watch 48

Issued

Feb 29, 2012, 11:31 AM CST (17:31 UTC)

Expired

Feb 29, 2012, 8:00 PM CST

In force

8 hr

Issued by

the Storm Prediction Center

Largest hail expected

1.5 in

Strongest gust expected

65 kt

Two or more tornadoes

80%

One or more EF2 to EF5 tornadoes

60%

Ten or more severe wind reports

80%

One or more gusts of 65 knots or more

60%

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

95%

• Mesoscale Discussion 179Feb 29, 7:38 AM CST
• Mesoscale Discussion 180Feb 29, 8:07 AM CST
• Mesoscale Discussion 182Feb 29, 11:11 AM CST
• Mesoscale Discussion 184Feb 29, 11:46 AM CST
• Mesoscale Discussion 186Feb 29, 2:23 PM CST
• Mesoscale Discussion 188Feb 29, 3:34 PM CST
• Mesoscale Discussion 192Feb 29, 7:33 PM CST

065 
WWUS20 KWNS 291736
SEL8
SPC WW 291736
KYZ000-TNZ000-VAZ000-010200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 48
NWS STORM PREDICTION CENTER NORMAN OK
1135 AM CST WED FEB 29 2012

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

       CENTRAL AND EASTERN KENTUCKY
       TENNESSEE
       FAR WESTERN VIRGINIA

EFFECTIVE THIS WEDNESDAY MORNING AND EVENING FROM 1135 AM UNTIL
800 PM CST.

TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 75 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTH SOUTHWEST OF
DYERSBURG TENNESSEE TO 30 MILES EAST SOUTHEAST OF JACKSON
KENTUCKY.  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 45...WW 46...WW 47...

DISCUSSION...BROKEN...PRE-FRONTAL BAND OF TSTMS /INCLUDING
SUPERCELLS/ OVER CNTRL KY IS EXPECTED TO INCREASE IN COVERAGE AND
INTENSITY THIS AFTERNOON ACROSS WATCH AREA...AS LARGE-SCALE FORCING
FOR ASCENT INCREASES AHEAD OF MIDLEVEL IMPULSE APPROACHING THE MID
MS/LOWER OH VALLEYS.  WIDESPREAD CLOUDS AND WEAK LAPSE RATES WILL
LIMIT AIR MASS DESTABILIZATION THROUGH THIS AFTERNOON WITH MLCAPE OF
GENERALLY LESS THAN 1000-1500 J/KG.  HOWEVER...GIVEN THE STRONG LOW-
AND DEEP-LAYER SHEAR...THE SETUP WILL REMAIN FAVORABLE FOR
SUPERCELLS AND BOWING STRUCTURES CAPABLE OF TORNADOES /SOME STRONG/
AND POTENTIALLY WIDESPREAD DAMAGING WINDS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 25050.


...MEAD

Tornado Watches in Tennessee, 2012Tornado Watches in Kentucky, 2012Tornado Watches in Virginia, 2012Every tornado 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.