Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 18, NWS Greenville-Spartanburg, SC

April 17, 2000Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 17, 2000, 8:58 PM EDT for Union County, North Carolina. It was in force for 47 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, 2000, 8:58 PM EDT (00:58 UTC)
Expired: Apr 17, 2000, 9:45 PM EDT
In force: 47 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Union County, NC

The radar

The Columbia radar (KCAE), 128 km from the middle of the area, began a volume at 01:00 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 17, 9:06 PM EDT	Hail 1.75	Waxhaw, NC
Apr 17, 9:08 PM EDT	Thunderstorm Wind 50 E	Waxhaw, 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 watch it was issued in

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

Issued	Product	Office	Lasted
Apr 17, 7:30 PM EDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.0 hours before the alert went out and 134 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: 365 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1652 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 67 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 180100
SVRGSP
NCC179-180145-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
858 PM EDT MON APR 17 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  UNION COUNTY IN PIEDMONT NORTH CAROLINA

* UNTIL 945 PM EDT

* AT 858 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A         
  SEVERE   THUNDERSTORM 15 MILES SOUTHWEST OF MONROE. THE SEVERE     
  THUNDERSTORM WAS MOVING TO THE EAST NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  WAXHAW AT 910 PM EDT
  MONROE AT 915 PM EDT
  WINGATE AT 925 PM EDT

PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY SEVERE THUNDERSTORM.

$$

LGL

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 17, 8:12 PM EDT, 46 minutes earlier.

Area forecast discussion, Apr 17, 8:12 PM EDT, 46 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
812 PM EDT MON APR 17 2000

WILL UPDATE FOR THE EXPIRED/CANCELLED WATCH.  WILL ALSO DO SOME
HOUSE CLEANING.  WILL PREPARE A MORE COMPREHENSIVE UPDATE AT THE
REGULARLY SCHEDULED TIME.                                DELGADO

.GSP...NONE.

In the hours before

Local storm report, Apr 17, 5:43 PM EDT, 3 hours 15 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
543 PM EDT MON APR 17 2000

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

535 PM     FLAT TOP MTN              NC   .25 INCH HAIL
04/17/00   BUNCOMBE                       35 KT WIND. REPORT FROM
                                          TRAINED SPOTTER.

LGL
NNNN

Local storm report, Apr 17, 6:00 PM EDT, 2 hours 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
600 PM EDT MON APR 17 2000

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

505 PM     LINVILLE                  NC   1.13 INCH HAIL
04/17/00   AVERY                          SPOTTER REPORT. TIME
                                          ESTIMATED BY RADAR.

JAT
NNNN

Local storm report, Apr 17, 6:25 PM EDT, 2 hours 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
625 PM EDT MON APR 17 2000

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

618 PM     15 SE YORK                SC   1.00 INCH HAIL
04/17/00   YORK                           PUBLIC REPORT VIA CAE.

618 PM     15 SE YORK                SC   60 MPH TSTM GUST
04/17/00   YORK                           PUBLIC REPORT VIA CAE.

JAT
NNNN

Local storm report, Apr 17, 7:37 PM EDT, 1 hour 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
737 PM EDT MON APR 17 2000

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

732 PM     6 E MINERAL SPRINGS       NC   .75 INCH HAIL
04/17/00   UNION                          911 CENTER RELAYED A
                                          REPORT OF DIME SIZE HAIL
                                          BETWEEN MINERAL SPRINGS
                                          AND MONROE.

BWM
NNNN

Local storm report, Apr 17, 8:03 PM EDT, 55 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
803 PM EDT MON APR 17 2000

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

758 PM     10 NW MONROE              NC   .75 INCH HAIL
04/17/00   UNION                          SHERIFF REPORT.

JAT
NNNN

Local storm report, Apr 17, 8:17 PM EDT, 41 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
817 PM EDT MON APR 17 2000

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

816 PM     7 W SALISBURY             NC   .75 INCH HAIL
04/17/00   ROWAN                          SPOTTER REPORT

BWM
NNNN

Nearby

Severe Thunderstorm Warnings in North Carolina, 2000 Every severe thunderstorm warning in 2000

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.