Tornado Watch 11

Issued

Feb 20, 2014, 2:23 PM CST (20:23 UTC)

Expired

Feb 20, 2014, 9:00 PM CST

In force

7 hr

Issued by

the Storm Prediction Center

Largest hail expected

1 in

Strongest gust expected

65 kt

The Paducah radar (KPAH), 72 km from the middle of the area, began a volume at 20:24 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

70%

One or more gusts of 65 knots or more

40%

Ten or more severe hail reports

20%

One or more hailstones of 2 inches or more

5%

Six or more combined severe hail and wind reports

90%

• Mesoscale Discussion 120Feb 20, 11:01 AM CST
• Mesoscale Discussion 123Feb 20, 1:45 PM CST
• Mesoscale Discussion 124Feb 20, 3:11 PM CST
• Mesoscale Discussion 125Feb 20, 3:23 PM CST
• Mesoscale Discussion 126 Tornado watch 11Feb 20, 5:29 PM CST
• Mesoscale Discussion 127Feb 20, 5:55 PM CST
• Mesoscale Discussion 130Feb 20, 8:01 PM CST

857 
WWUS20 KWNS 202025
SEL1  
SPC WW 202025
ARZ000-ILZ000-INZ000-KYZ000-MOZ000-MSZ000-TNZ000-210300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 11
NWS STORM PREDICTION CENTER NORMAN OK
225 PM CST THU FEB 20 2014

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF 
  NORTHEAST ARKANSAS
  SOUTHEAST ILLINOIS
  EXTREME SOUTHWEST INDIANA
  WESTERN KENTUCKY
  SOUTHEAST MISSOURI
  NORTHERN MISSISSIPPI
  WESTERN AND MIDDLE TENNESSEE

* EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 225 PM UNTIL
  900 PM CST.

* PRIMARY THREATS INCLUDE...
  SEVERAL TORNADOES POSSIBLE
  SEVERAL SIGNIFICANT DAMAGING WIND GUSTS TO 75 MPH POSSIBLE
  A FEW LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 80 STATUTE
MILES EAST AND WEST OF A LINE FROM 45 MILES EAST NORTHEAST OF
CARBONDALE ILLINOIS TO 10 MILES SOUTH OF OXFORD MISSISSIPPI.  FOR
A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
OUTLINE UPDATE (WOUS64 KWNS WOU1).

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 9...WW 10...

DISCUSSION...STORMS WILL CONTINUE TO DEVELOP NEWD FROM AR TOWARD WRN
TN/KY THROUGH THE AFTERNOON/EVENING...WITH CONSOLIDATION INTO A
LARGER SQUALL LINE EXPECTED BY EARLY TONIGHT AS THE COLD FRONT
OVERTAKES THE PRE-FRONTAL CONVECTION.  THE COMBINATION OF
BUOYANCY/MOISTURE AND VERTICAL SHEAR WILL SUPPORT THE RISK FOR A FEW
TORNADOES WITH ANY MORE DISCRETE INITIAL CELLS OR LATER EMBEDDED
CIRCULATIONS...THOUGH THE PRIMARY RISK WILL BECOME DAMAGING WINDS
THIS EVENING INTO TONIGHT.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH. EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 65 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500.
MEAN STORM MOTION VECTOR 24050.


...THOMPSON

Tornado Watches in Tennessee, 2014Tornado Watches in Kentucky, 2014Tornado Watches in Mississippi, 2014Every tornado watch in 2014

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.