Tornado Watch 70

Issued

Mar 20, 2001, 2:30 AM EST (07:30 UTC)

Expired

Mar 20, 2001, 8:00 AM EST

In force

6 hr

Issued by

the Storm Prediction Center

000 
WWUS9 KMKC 200724
SEL0  

SEL0  
MKC WW 200715
FLZ000-GAZ000-CWZ000-201300-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 70
STORM PREDICTION CENTER NORMAN OK
215 AM EST TUE MAR 20 2001

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF
                            
   NORTHERN AND CENTRAL FLORIDA                            
   SOUTHERN GEORGIA                            
   COASTAL WATERS                     

EFFECTIVE THIS TUESDAY MORNING FROM 230 AM UNTIL 800 AM EST.

TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO
60 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 100 STATUTE MILES EAST AND WEST
OF A LINE FROM 40 MILES EAST NORTHEAST OF ALBANY GEORGIA TO 35
MILES WEST OF ORLANDO FLORIDA.

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.

DISCUSSION...THREAT FOR ISOLATED TORNADOES EXPECTED TO INCREASE
ACROSS WATCH AREA THROUGH LATER THIS MORNING AS LARGE SCALE ASCENT
AND LOW LEVEL WARM ADVECTION CONTINUE TO DESTABLIZE REGION AHEAD OF
VORT LOBE NOW BECOMING NEGATIVELY-TILTED NEAR BVE.  COUPLED WITH
INCREASING DEEP LAYER SHEAR AND LOCALLY-ENHANCED LOW LEVEL SHEAR
INVOF WARM FRONT...SETUP APPEARS FAVORABLE FOR A FEW ROTATING
STORMS/ISOLATED TORNADOES.  THREAT WILL ALSO EXIST FOR EMBEDDED
SUPERCELLS ALONG COLD FRONT SQUALL LINE NOW NEARING TLH.   

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 50 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. 
MEAN STORM MOTION VECTOR 24035.


...CORFIDI

;314,0815 283,0801 283,0833 314,0851;

Tornado Watches in Florida, 2001Tornado Watches in Georgia, 2001Every tornado watch in 2001

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.