Alert archive / North Carolina / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 37, NWS Greenville-Spartanburg, SC

April 16, 1998Catawba County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 16, 1998, 10:27 PM EDT for Catawba County, North Carolina. It was in force for 33 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 16, 1998, 10:27 PM EDT (02:27 UTC)
Expired: Apr 16, 1998, 11:00 PM EDT
In force: 33 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Catawba County, NC

The radar

The Greer radar (KGSP), 126 km from the middle of the area, began a volume at 02:31 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

Time	Report	Where	Remark
Apr 16, 10:33 PM EDT	Hail 1	Maiden, NC

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 nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.5 hours before the alert went out and 127 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: 51 J/kg
Mixed-layer CIN: -85 J/kg
Mixed-layer LCL: 788 m above ground
0-6 km bulk shear: 51 kt
0-1 km storm-relative helicity: 194 m²/s²
0-3 km storm-relative helicity: 253 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 1 hour 12 minutes earlier.

Area forecast discussion, Apr 16, 9:15 PM EDT, 1 hour 12 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, 8:37 PM EDT, 1 hour 50 minutes before

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Local storm report, Apr 16, 8:37 PM EDT, 1 hour 50 minutes before

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Local storm report, Apr 16, 8:43 PM EDT, 1 hour 44 minutes before

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Local storm report, Apr 16, 8:43 PM EDT, 1 hour 44 minutes before

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Local storm report, Apr 16, 9:22 PM EDT, 1 hour 5 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, 1 hour 5 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

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 16, 8:14 PM EDT	Tornado Warning	GSP	Buncombe, Henderson	61 min
Apr 16, 8:59 PM EDT	Severe Thunderstorm Warning	GSP	Rutherford	61 min
Apr 16, 10:12 PM EDT	Severe Thunderstorm Warning	GSP	Lincoln	48 min
Apr 16, 10:42 PM EDT	Severe Thunderstorm Warning	GSP	Iredell	33 min
Apr 17, 2:33 AM EDT	Flash Flood Warning	GSP	Caldwell	4 hr
Apr 17, 5:32 PM EDT	Severe Thunderstorm Warning	GSP	Iredell	28 min
Apr 17, 6:02 PM EDT	Severe Thunderstorm Warning	GSP	Davie	28 min
Apr 17, 2:35 AM EDT	Severe Thunderstorm Warning	GSP	Oconee	45 min
Apr 17, 2:50 AM EDT	Tornado Warning	GSP	Pickens	45 min
Apr 17, 3:08 AM EDT	Severe Thunderstorm Warning	GSP	Anderson	47 min
Apr 17, 3:29 AM EDT	Severe Thunderstorm Warning	GSP	Spartanburg	46 min
Apr 17, 5:43 AM EDT	Flash Flood Warning	GSP	Anderson	2 hr
Apr 17, 6:11 AM EDT	Severe Thunderstorm Warning	GSP	Greenville, Laurens	44 min
Apr 17, 6:50 AM EDT	Severe Thunderstorm Warning	GSP	Laurens, Spartanburg	45 min
Apr 17, 7:44 AM EDT	Flash Flood Warning	GSP	Anderson	3 hr
Apr 17, 2:19 AM EDT	Severe Thunderstorm Warning	GSP	Habersham	31 min
Apr 17, 2:31 AM EDT	Severe Thunderstorm Warning	GSP	Stephens	34 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 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; radar from the NEXRAD Level II archive.