Alert archive / Georgia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 39, NWS Greenville-Spartanburg, SC

April 17, 1998Habersham County, Georgia

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 17, 1998, 2:19 AM EDT for Habersham County, Georgia. It was in force for 31 min. 2 reports 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 17, 1998, 2:19 AM EDT (06:19 UTC)
Expired
Apr 17, 1998, 2:50 AM EDT
In force
31 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Habersham County, GA

The radar

The Greer radar (KGSP), 123 km from the middle of the area, began a volume at 06:21 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.

What was reported inside it

TimeReportWhereRemark
Apr 17, 2:30 AM EDTThunderstorm Wind 52Clarkesville, GA
Apr 17, 2:30 AM EDTHail 0.75Clarkesville, GA

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.

IssuedProductOfficeLasted
Apr 16, 10:15 PM EDTTornado WatchSPC6 hr

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 6.3 hours before the alert went out and 166 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-pSkew-T log-p diagram, Peachtre/Fal Fld, GA at 00:00Z on 1998-04-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1217 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Peachtre/Fal Fld, GA at 00:00Z on 1998-04-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 280 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
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
1217 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
280 m²/s²
0-3 km storm-relative helicity
368 m²/s²
Significant tornado parameter
3.0
Supercell composite
10.6

Open this sounding in Storm Lab

The text

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

318 
WUUS1 KGSP 170621 RRA
SVRGSP
GAC137-170650-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
219 AM EDT FRI APR 17 1998

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG SC HAS
ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  HABERSHAM COUNTY IN NORTHEASTERN GEORGIA

* UNTIL 250 AM EDT

* AT 218 AM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM JUST WEST OF CLARKESVILLE...MOVING NORTHEAST AT 35
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  HOLLYWOOD AT 230 AM
  TALLULAH FALLS AT 240 AM

ALTHOUGH TORNADOES HAVE NOT BEEN DETECTED WITH THIS STORM...A
TORNADO WATCH IS IN EFFECT.  TORNADOES CAN DEVELOP WITHOUT WARNING
FROM A SEVERE THUNDERSTORM.

JONES

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.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this severe thunderstorm warning went out at Apr 16, 9:15 PM EDT, 5 hours 4 minutes earlier.

Area forecast discussion, Apr 16, 9:15 PM EDT, 5 hours 4 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE/SPARTANBURG, SC
915 PM EDT THU APR 16 1998

CAE: CONCUR ON LIKELY POPS.
RAH: MENTION POSSIBILITY OF SEVERE E OF MOUNTAINS. DROP WINDY
     MOUNTAINS.
FFC: NONE.

SOUNDING FROM KFFC HAD CAPE OF 1340 AND HELICITY OF 425. GSO A BIT
MORE TAME WITH CAPE 415 AND HELICITY 100. CURRENT ACTIVITY IN W
NC MADE MOST OF ITS ENVIRONMENT...AND EXPECT AREA ALONG AND S OF
I-40 TO BE CAPABLE OF SUPPORTING CONVECTION OF EQUAL OR GREATER
STRENGTH/ORGANIZATION. MOUNTAIN REPORTS INDICATE WINDS TO BE 10
KNOTS OR LESS...EXCEPT IN PRESENCE OF THUNDERSTORMS. TEMPERATURES
AND POPS APPEAR IN ORDER.

JAT

In the hours before

Local storm report, Apr 16, 9:22 PM EDT, 4 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
922 PM EDT THU APR 16 1998

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

735 PM     2 NW ALMOND               NC   TORNADO
04/16/98   SWAIN                          WLOS-TV RELAYED UNCONFIRMED
                                          REPORT AT GRAHAM LINE -
                                          TREE DAMAGE

840 PM     JUST N OF AVL AIRPORT     NC   2.00 INCH HAIL
04/16/98   BUNCOMBE                       RELAYED BY WLOS-TV
                                          AT HENDERSON COUNTY LINE

JONES
Local storm report, Apr 16, 9:22 PM EDT, 4 hours 57 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
922 PM EDT THU APR 16 1998

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

735 PM     2 NW ALMOND               NC   TORNADO
04/16/98   SWAIN                          WLOS-TV RELAYED UNCONFIRMED
                                          REPORT AT GRAHAM LINE -
                                          TREE DAMAGE

840 PM     JUST N OF AVL AIRPORT     NC   2.00 INCH HAIL
04/16/98   BUNCOMBE                       RELAYED BY WLOS-TV
                                          AT HENDERSON COUNTY LINE

JONES
Local storm report, Apr 16, 10:38 PM EDT, 3 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1038 PM EDT THU APR 16 1998

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

1033 PM    NEAR MAIDEN               NC   1.00 INCH HAIL
04/16/98   CATAWBA                        AT LINCOLN COUNTY LINE
                                          CHARLOTTE AREA SKYWARN
                                          REPORT
JONES
Local storm report, Apr 16, 10:38 PM EDT, 3 hours 41 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1038 PM EDT THU APR 16 1998

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

1033 PM    NEAR MAIDEN               NC   1.00 INCH HAIL
04/16/98   CATAWBA                        AT LINCOLN COUNTY LINE
                                          CHARLOTTE AREA SKYWARN
                                          REPORT
JONES
Special weather statement, Apr 16, 10:58 PM EDT, 3 hours 21 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-170900-

SEVERE WEATHER OUTOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1058 PM EDT THU APR 16 1998

...TORNADO WATCH FOR ALL OF WESTERN AND MUCH OF CENTRAL NORTH CAROLINA
UNTIL 5 AM AND FOR RABUN AND HABERSHAM COUNTIES IN GEORGIA UNTIL 4 AM...
...FLASH FLOOD WATCH FOR TONIGHT AND FRIDAY INCLUDES NORTHEAST
GEORGIA...
...SEVERE WEATHER POSSIBLE TONIGHT ACROSS UPSTATE SOUTH CAROLINA AND
THE REMAINDER OF NORTHEAST GEORGIA...

A STEADY STATE SEVERE THUNDERSTORM CROSSED THE MOUNTAINS OF NORTH
CAROLINA THIS EVENING AND WAS STILL CAUSING LARGE HAIL AS IT MOVED INTO
THE PIEDMONT NORTH OF LINCOLNTON.  SOME TORNADOES AND WIND DAMAGE MAY
HAVE OCCURRED...ESPECIALLY FROM NEAR THE TENNESSEE BORDER TO WEST OF
ASHEVILLE...BUT THE STORM CROSSED RUGGED TERRAIN AND INFORMATION HAS
BEEN DIFFICULT TO OBTAIN TONIGHT.

NUMEROUS SEVERE THUNDERSTORMS HAVED OCCURRED FROM THIS AFTERNOON
THROUGH THE EVENING ACROSS TENNESSEE AND NORTH ALABAMA.  LARGE
HAIL...DAMAGING WINDS...AND TORNADOES HAVE BEEN REPORTED.

THIS COULD BE A VERY DANGEROUS WEATHER SITUATION OVERNIGHT...AND PEOPLE
SHOULD MONITOR THE SITUATION CAREFULLY AND LISTEN FOR LATER STATEMENTS
AND WARNINGS.  HEAVY RAINFALL MAY BECOME A REAL THREAT OVERNIGHT...AND
THE FLASH FLOOD WATCH COULD BE EXPANDED TO INCLUDE OTHER AREAS.

JONES
Special weather statement, Apr 16, 10:58 PM EDT, 3 hours 21 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-170900-

SEVERE WEATHER OUTOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1058 PM EDT THU APR 16 1998

...TORNADO WATCH FOR ALL OF WESTERN AND MUCH OF CENTRAL NORTH CAROLINA
UNTIL 5 AM AND FOR RABUN AND HABERSHAM COUNTIES IN GEORGIA UNTIL 4 AM...
...FLASH FLOOD WATCH FOR TONIGHT AND FRIDAY INCLUDES NORTHEAST
GEORGIA...
...SEVERE WEATHER POSSIBLE TONIGHT ACROSS UPSTATE SOUTH CAROLINA AND
THE REMAINDER OF NORTHEAST GEORGIA...

A STEADY STATE SEVERE THUNDERSTORM CROSSED THE MOUNTAINS OF NORTH
CAROLINA THIS EVENING AND WAS STILL CAUSING LARGE HAIL AS IT MOVED INTO
THE PIEDMONT NORTH OF LINCOLNTON.  SOME TORNADOES AND WIND DAMAGE MAY
HAVE OCCURRED...ESPECIALLY FROM NEAR THE TENNESSEE BORDER TO WEST OF
ASHEVILLE...BUT THE STORM CROSSED RUGGED TERRAIN AND INFORMATION HAS
BEEN DIFFICULT TO OBTAIN TONIGHT.

NUMEROUS SEVERE THUNDERSTORMS HAVED OCCURRED FROM THIS AFTERNOON
THROUGH THE EVENING ACROSS TENNESSEE AND NORTH ALABAMA.  LARGE
HAIL...DAMAGING WINDS...AND TORNADOES HAVE BEEN REPORTED.

THIS COULD BE A VERY DANGEROUS WEATHER SITUATION OVERNIGHT...AND PEOPLE
SHOULD MONITOR THE SITUATION CAREFULLY AND LISTEN FOR LATER STATEMENTS
AND WARNINGS.  HEAVY RAINFALL MAY BECOME A REAL THREAT OVERNIGHT...AND
THE FLASH FLOOD WATCH COULD BE EXPANDED TO INCLUDE OTHER AREAS.

JONES

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 17, 2:31 AM EDTSevere Thunderstorm WarningGSPStephens34 min

Nearby

Severe Thunderstorm Warnings in Georgia, 1998Every 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; radar from the NEXRAD Level II archive.