Alert archive / North Carolina / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 137, NWS Greenville-Spartanburg, SC

August 7, 2000Caldwell County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 7, 2000, 6:20 PM EDT for Caldwell County, North Carolina. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 7, 2000, 6:20 PM EDT (22:20 UTC)
Expired
Aug 7, 2000, 7:00 PM EDT
In force
40 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Whole counties

County Caldwell County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.3 hours before the alert went out and 149 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, Greensboro/Hi Pt, NC at 12:00Z on 2000-08-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 833 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, Greensboro/Hi Pt, NC at 12:00Z on 2000-08-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -33 square meters per square second.1939Sfc1 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
833 J/kg
Mixed-layer CIN
-117 J/kg
Mixed-layer LCL
1153 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-33 m²/s²
0-3 km storm-relative helicity
17 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 072222
SVRGSP
NCC027-072300-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
620 PM EDT MON AUG 7 2000

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  SOUTHERN CALDWELL COUNTY IN WESTERN NORTH CAROLINA

* UNTIL 700 PM EDT

* AT 620 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM WITH DAMAGING WINDS 5 MILES WEST OF LENOIR...OR ABOUT
  OVER GAMEWELL...MOVING EAST AT 15 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LENOIR AT 630 PM EDT
  HUDSON AT 640 PM EDT
  SAWMILLS AT 645 PM EDT
  GRANITE FALLS AT 650 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 THUNDERSTORM.

$$

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 Aug 7, 2:31 PM EDT, 3 hours 49 minutes earlier.

Area forecast discussion, Aug 7, 2:31 PM EDT, 3 hours 49 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
231 PM EDT MON AUG 7 2000

SCATTERED CONVECTION ACROSS THE MTNS WITH MORE ISOLATED CONVECTION
ELSEWHERE. RIGHT NOW EXPECT TO HAVE HIER CHC EVENING POP IN MTNS
THAN PRELIM NUMBERS BELOW. MAY USE HIER CHC POPS ELSEWHERE IF
CONVECTION MORE WIDESPREAD BEFORE ISSUANCE.

PATTERN CHANGES LITTLE THRU WEDNESDAY. MAINLY ZONAL FLOW TO OUR
NORTH. SOME SHORT WAVES MOVE THRU THE FLOW BUT ENERGY MOSTLY NORTH
OF THE AREA. INSTABILITY WILL REMAIN HIGH AS TEMPS/DEW POINTS CHANGE
LITTLE. GOOD LOW LEVEL MOISTURE CONTINUES AS WELL. CHC POPS WILL BE
NEEDED FOR AFT CONVECTION. PRECIP CHANCES LIKELY HIER DURING THE
EXTENDED AS A FRONTAL SYSTEM APPROACHES FROM THE NORTH.

AS MENTIONED ABOVE TEMPS/DEW POINTS CHANGE LITTLE THRU THE SHORT
RANGE PERIOD. HEAT INDEX WILL AGAIN APPROACH 105 TUESDAY...BUT
SHOULD FALL SHORT OF THE THREE HOURS REQUIRED FOR HEAT ADVISORY.
COOLER FOR THE EXTENDED WITH LOWER HEIGHTS AND THICKNESSES.

...PRELIM NUMBERS...
GSP   72  95  72  95 /  20  30  20  30
AND   72  95  72  95 /  20  30  20  30
CLT   72  94  72  94 /  20  30  20  30
HKY   72  94  72  94 /  20  30  20  30
AVL   67  90  67  88 /  20  30  20  30

.GSP...
GA...NONE.
NC...NONE.
SC...NONE.

RWH

In the hours before

Local storm report, Aug 7, 5:11 PM EDT, 1 hour 9 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
511 PM EDT MON AUG 07 2000

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

448 PM     5 SE TAYLORSVILLE         NC   WIND DAMAGE
08/07/00   ALEXANDER                      TWO TREES DOWN ON ROAD
                                          JUST NORTH OF HIDDENITE.

DEO

Nearby

Severe Thunderstorm Warnings in North Carolina, 2000Every 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; the sounding from the Mesonet's radiosonde archive.