WATCHES: Tornado Watch Number 207

WWUS20 KWNS 212005
SEL7
SPC WW 212005
ARZ000-LAZ000-MOZ000-MSZ000-TNZ000-220300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 207
NWS STORM PREDICTION CENTER NORMAN OK
300 PM CDT TUE MAY 21 2013

THE NWS STORM PREDICTION CENTER HAS ISSUED A

* TORNADO WATCH FOR PORTIONS OF
EASTERN ARKANSAS
NORTHEASTERN LOUISIANA
MISSOURI BOOTHEEL
NORTHERN MISSISSIPPI
WESTERN TENNESSEE

* EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 300 PM UNTIL
1000 PM CDT.

* PRIMARY THREATS INCLUDE...
SEVERAL TORNADOES POSSIBLE
SEVERAL LARGE HAIL EVENTS WITH A FEW VERY LARGE HAIL EVENTS TO 2
INCHES IN DIAMETER POSSIBLE
SEVERAL DAMAGING WIND GUSTS TO 70 MPH POSSIBLE

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 90 STATUTE
MILES EAST AND WEST OF A LINE FROM 40 MILES NORTHEAST OF
DYERSBURG TENNESSEE TO 35 MILES SOUTH SOUTHWEST OF GREENWOOD
MISSISSIPPI. FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU7).

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 201...WW 202...WW
203...WW 204...WW 205...WW 206...

DISCUSSION...THUNDERSTORM ACTIVITY CONTINUES TO SLOWLY INTENSIFY
ALONG AN OUTFLOW BOUNDARY ADVANCING TOWARD THE MISSISSIPPI RIVER.
THE INTERSECTION OF THIS OUTFLOW BOUNDARY...WITH ANOTHER OUTFLOW
BOUNDARY CURRENTLY STALLED/RETREATING NORTHWARD TOWARD THE
MISSISSIPPI/TENNESSEE BORDER COULD PROVIDE THE FOCUS FOR ADDITIONAL
DEVELOPMENT AND UPSCALE GROWTH DURING THE NEXT FEW HOURS. AN
INCREASINGLY ORGANIZED SEVERE MESOSCALE CONVECTIVE SYSTEM APPEARS
POSSIBLE BY EARLY EVENING...PERHAPS PRECEDED BY ISOLATED DISCRETE
SUPERCELL DEVELOPMENT.

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
500. MEAN STORM MOTION VECTOR 24035.


...KERR

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