Tornado Watch 503

Issued

Jun 4, 1998, 1:45 PM EDT (17:45 UTC)

Expired

Jun 4, 1998, 8:00 PM EDT

In force

6 hr

Issued by

the Storm Prediction Center

The Columbia radar (KCAE), 86 km from the middle of the area, began a volume at 17:45 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.

372 
WWUS9 KMKC 041725
SEL3  
MKC WW 041725
SCZ000-050000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 503
STORM PREDICTION CENTER NORMAN OK
125 PM EDT THU JUN 4 1998

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

   SOUTH CAROLINA                     
   AND ADJACENT COASTAL WATERS

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 800
PM EDT.

TORNADOES...HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS
TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS ALONG AND 110 STATUTE MILES EAST AND WEST
OF A LINE FROM 70 MILES NORTH NORTHWEST OF COLUMBIA SOUTH CAROLINA
TO 75 MILES SOUTHEAST OF CHARLESTON SOUTH CAROLINA.

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...POTENTIAL FOR SUPERCELLS THIS AFTERNOON AND EVENING
ALONG STALLED FRONT AND OUTFLOW BOUNDARIES IN SC.  DEEP-LAYER SHEAR
IS NOT EXCESSIVE...ON THE ORDER OF 40 KTS.  BUT BOUNDARIES APPEAR
TO BE IN GOOD ORIENTATION TO MAXIMIZE CONVERGENCE OF LOW-LEVEL WSW
FLOW...SURFACE DEWPOINTS ARE IN THE LOW TO MID 70S...AND LOW-LEVEL
EASTERLY FLOW IS PRESENT N OF STALLED FRONT IN N PART OF WATCH.   

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 520. 
MEAN STORM MOTION VECTOR 28030.

...CORFIDI

345,0793 320,0771 320,0805 345,0833

Tornado Watches in South Carolina, 1998Tornado Watches in Georgia, 1998Every tornado watch in 1998

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.