Tornado Watch 190

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 190
NWS STORM PREDICTION CENTER NORMAN OK
950 AM CDT THU APR 10 2008
THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
A LARGE PART OF NORTHEAST ARKANSAS
PARTS OF SOUTHERN ILLINOIS
PARTS OF WESTERN KENTUCKY
PARTS OF SOUTHEASTERN MISSOURI
EFFECTIVE THIS THURSDAY MORNING AND AFTERNOON FROM 950 AM UNTIL
500 PM CDT.
TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND
GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
AREAS.
THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
MILES EAST AND WEST OF A LINE FROM 25 MILES EAST SOUTHEAST OF
LITTLE ROCK ARKANSAS TO 10 MILES EAST NORTHEAST OF CARBONDALE
ILLINOIS. 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 187
...
WW 189
...
DISCUSSION...IMPRESSIVE SHEAR PROFILES ACROSS THE WATCH AREA AS THE
INTENSE UPPER SYSTEM APPROACHES FROM THE WEST. AIR MASS WILL
CONTINUE TO DESTABILIZE AHEAD OF LINE OF STORMS FROM SERN MO TO SWRN
AR. POTENTIAL FOR TORNADIC SUPERCELLS WILL INCREASE WITH DAYTIME
HEATING ALONG AND AHEAD OF THE LINE OF CONVECTION.
AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
500. MEAN STORM MOTION VECTOR 22045.
...HALES