Tornado Watch 30

Issued

Feb 28, 2011, 5:47 AM EST (10:47 UTC)

Expired

Feb 28, 2011, 10:25 AM EST

In force

5 hr

Issued by

the Storm Prediction Center

Largest hail expected

0.5 in

Strongest gust expected

60 kt

The Jackson,KY radar (KJKL), 84 km from the middle of the area, began a volume at 10:49 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

30%

One or more gusts of 65 knots or more

30%

Ten or more severe hail reports

5%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

70%

• Mesoscale Discussion 166Feb 28, 3:32 AM EST
• Mesoscale Discussion 169Feb 28, 5:31 AM EST
• Mesoscale Discussion 172Feb 28, 8:36 AM EST

287 
WWUS20 KWNS 281048
SEL0
SPC WW 281048
KYZ000-OHZ000-PAZ000-VAZ000-WVZ000-281800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 30
NWS STORM PREDICTION CENTER NORMAN OK
550 AM EST MON FEB 28 2011

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

       EASTERN KENTUCKY
       SOUTHEAST OHIO
       SOUTHWEST PENNSYLVANIA
       FAR WESTERN VIRGINIA
       WEST VIRGINIA

EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 550 AM UNTIL 100
PM EST.

TORNADOES...HAIL TO 0.5 INCH IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 35 MILES SOUTH SOUTHWEST OF
LONDON KENTUCKY TO 20 MILES NORTH NORTHEAST OF PITTSBURGH
PENNSYLVANIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

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 27...WW 28...WW 29...

DISCUSSION...QLCS WITH EMBEDDED MESO-VORTICES WILL CONTINUE EWD
ACROSS WW AREA THIS MORNING AT 40-50 KT.  AMBIENT INFLOW AIR MASS
REMAINS WARM AND MOIST AND WHEN COUPLED WITH THE VERY STRONG
VERTICAL SHEAR...SETUP WILL BE FAVORABLE FOR A CONTINUED RISK FOR
DAMAGING WINDS AND TORNADOES.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 0.5 INCH. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
400. MEAN STORM MOTION VECTOR 27050.


...MEAD

Tornado Watches in West Virginia, 2011Tornado Watches in Kentucky, 2011Tornado Watches in Ohio, 2011Every tornado watch in 2011

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.