Tornado Watch 90

Issued

Apr 4, 2003, 10:20 PM EST (03:20 UTC)

Expired

Apr 5, 2003, 3:00 AM EST

In force

5 hr

Issued by

the Storm Prediction Center

The Louisville radar (KLVX), 41 km from the middle of the area, began a volume at 03:22 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.

• Mesoscale Discussion 380Apr 4, 7:01 PM EST
• Mesoscale Discussion 381Apr 4, 8:07 PM EST
• Mesoscale Discussion 382Apr 4, 10:00 PM EST
• Mesoscale Discussion 384Apr 4, 11:38 PM EST
• Mesoscale Discussion 385Apr 5, 2:34 AM EST

000 
WWUS20 KWNS 050322
SEL0  
SPC WW 050320
INZ000-KYZ000-OHZ000-050800-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 90
STORM PREDICTION CENTER NORMAN OK
1020 PM EST FRI APR 4 2003

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

   SOUTHEAST INDIANA                            
   WESTERN AND CENTRAL KENTUCKY                           
   SOUTHWESTERN OHIO                               

EFFECTIVE THIS FRIDAY NIGHT AND SATURDAY MORNING FROM 1020 PM UNTIL
300 AM EST.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 80 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES EAST AND WEST
OF A LINE FROM 20 MILES WEST SOUTHWEST OF FORT CAMPBELL KENTUCKY TO
40 MILES NORTHEAST OF DAYTON OHIO.

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...THIS TORNADO WATCH REPLACES TORNADO WATCH
NUMBER 87...TORNADO WATCH NUMBER 88.  WATCH NUMBER 87...88 WILL NOT
BE IN EFFECT AFTER 1020 PM EST.  CONTINUE...WW 89...

DISCUSSION...INCREASINGLY FAVORABLE SHEAR PROFILES ACROSS OH VALLEY
AHEAD OF SURFACE LOW AND COLD FRONT.  AIRMASS REMAINS UNSTABLE
PRECEEDING LINE OF SEVERE THUNDERSTORMS.  HODOGRAPHS OFF VADS AT
SDF AND EVV AHEAD OF LINE INDICATE HELICITIES HAVE INCREASE TO
ABOVE 300 G/KG.  STORMS EVOLVING INTO SHORT LINES/BOW WITH
ASSOCIATED WIND DAMAGE.  ADDITIONALLY ISOLATED TORNADOES REMAIN
LIKELY GIVEN STRONG SHEAR. 


AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 70 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. 
MEAN STORM MOTION VECTOR 24040.


...HALES

401,0822 363,0863 363,0885 401,0845

Tornado Watches in Kentucky, 2003Tornado Watches in Indiana, 2003Tornado Watches in Ohio, 2003Every tornado watch in 2003

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.