Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 38, NWS Columbia, SC

April 8, 1998McDuffie County, Georgia

NWS Columbia, SC issued this severe thunderstorm warning at Apr 8, 1998, 11:19 PM EDT for McDuffie County, Georgia. It was in force for 26 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 8, 1998, 11:19 PM EDT (03:19 UTC)
Expired: Apr 8, 1998, 11:45 PM EDT
In force: 26 min
Issued by: NWS Columbia, SC
Area: Whole counties

County McDuffie County, GA

What was reported inside it

Time	Report	Where	Remark
Apr 8, 11:30 PM EDT	Hail 1.75	Dearing, GA	Spotter reports golf ball size hail.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Apr 8, 7:30 PM EDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 3.3 hours before the alert went out and 188 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 771 J/kg
Mixed-layer CIN: -28 J/kg
Mixed-layer LCL: 478 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 176 m²/s²
0-3 km storm-relative helicity: 313 m²/s²
Significant tornado parameter: 1.5
Supercell composite: 8.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

922 
WUUS1 KCAE 090318 RRA
SVRCAE
GAC189-090345-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE COLUMBIA SC
1119 PM EDT WED APR 8 1998

THE NATIONAL WEATHER SERVICE IN COLUMBIA SC HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN MCDUFFIE COUNTY IN GEORGIA

* UNTIL 1145 PM EDT

* AT 1115 PM DOPPLER WEATHER RADAR INDICATED A SEVERE THUNDERSTORM 
  ALONG THE GLASCOCK / WARREN COUNTY LINE MOVING NORTHEAST AT 
  55 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  DEARING AT 1130PM

SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES 
WITH LITTLE OR NO ADVANCE WARNING. REMAIN CALM BUT BE ALERT TO 
RAPIDLY CHANGING WEATHER CONDITIONS.

AMATEUR RADIO AND OTHER SPOTTERS ARE REQUESTED TO MONITOR THIS 
STORM AND RELAY REPORTS PROMPTLY TO THE NEAREST NATIONAL WEATHER 
SERVICE OFFICE.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Local storm report, Apr 8, 10:10 PM EDT, 1 hour 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1010 PM EDT WED APR 08 1998

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

1009 PM    APPLING                   GA   .75 INCH HAIL
04/08/98   COLUMBIA                       DIME SIZE HAIL. REPORTED
                                          BY SHERIFF.

940 PM     10 E SALUDA               SC   .75 INCH HAIL
04/08/98   SALUDA                         DIME SIZE HAIL ABOUT 10
                                          MILES E OF SALUDA. HAM
                                          REPORT.

RCC

Local storm report, Apr 8, 10:28 PM EDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1028 PM EDT WED APR 08 1998

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

1010 PM    3 N COLUMBIA              SC   .75 INCH HAIL
04/08/98   RICHLAND                       STATE HIGHWAY PATROL
                                          REPORTED DIME SIZE HAIL
                                          EAST OF I-26 NEAR I-20.

RCC

Local storm report, Apr 8, 10:34 PM EDT, 45 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1034 PM EDT WED APR 08 1998

TIME (EDT) .....CITY LOCATION....... ST   ...EVENT/REMARKS...
           .....COUNTY LOCATION.....

1023 PM    12 SW EDGEFIELD           SC   .75 INCH HAIL
04/08/98   EDGEFIELD                      SHERIFF REPORTED DIME SIZE
                                          HAIL AT COLLIERS...12
                                          MILES SW OF EDGEFIELD.

RCC

The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 8, 9:57 PM EDT	Severe Thunderstorm Warning	CAE	Columbia	63 min
Apr 8, 11:27 PM EDT	Severe Thunderstorm Warning	CAE	Columbia, Richmond	33 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1998 Every severe thunderstorm warning in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.