Alert archive / South Carolina / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 5, NWS Greenville-Spartanburg, SC

April 1, 2001Chester County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Apr 1, 2001, 11:09 AM EDT for Chester County, South Carolina. It was in force for 51 min. 3 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 1, 2001, 11:09 AM EDT (15:09 UTC)
Expired: Apr 1, 2001, 12:00 PM EDT
In force: 51 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Whole counties

County Chester County, SC

What was reported inside it

Time	Report	Where	Remark
Apr 1, 11:45 AM EDT	Thunderstorm Wind 50 E	Ft Lawn, SC	911 center reported a couple of trees down.
Apr 1, 11:45 AM EDT	Thunderstorm Wind 50 E	Chester, SC
Apr 1, 11:45 AM EDT	Hail 0.75	Chester, SC

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 12:00Z, 3.2 hours before the alert went out and 192 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: 71 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 577 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 98 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 011509
SVRGSP
SCC023-011600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1109 AM EDT SUN APR 1 2001

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CHESTER COUNTY IN SOUTH CAROLINA

* UNTIL NOON EDT

* AT 1109 AM EDT...SEVERE WEATHER SPOTTERS REPORTED A SEVERE
  THUNDERSTORM 8 MILES NORTHEAST OF UNION...OR ABOUT 2 MILES
  SOUTHWEST OF LOCKHART...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LOWRYS AT 1120 AM EDT
  CHESTER AT 1125 AM EDT
  RICHBURG AT 1140 AM EDT
  FORT LAWN AT 1150 AM EDT

THIS RAPIDLY MOVING SEVERE THUNDERSTORM MAY CAUSE WINDS FROM 60 TO
100 MPH...AND MAY MOVE THROUGH VERY QUICKLY WITH LITTLE 
THUNDER...LIGHTNING...OR RAIN. LARGE HAIL IS ALSO POSSIBLE.

$$

RWH

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 1, 9:30 AM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Apr 1, 9:30 AM EDT, 1 hour 39 minutes before

AREA FORECAST DISCUSSION...UPDATED
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
930 AM EDT SUN APR 1 2001

* WILL FIRE OUT A QUICK UPDATE FOR NC MTNS...TO MENTION
SNOW SHOWER MIX C/S...& TO GO ALL SNOW N MTNS. 12Z GSO SNDG WBZ
HEIGHT 4900' & LOWERING AS I TYPE. BASED ON CURRENT SNOW REPORTS...
SNOW LEVELS NEARING 3000' FEET N MTNS...PROBABLY NOW BELOW 4000'
C MTNS.

...PREVIOUS DISCUSSION...

STRONG UPPER LEVEL SYSTEM COMING ACROSS THE CWA THIS MORNING AND
EARLY AFTERNOON....WILL SPREAD WIDESPREAD SHOWERS ACROSS THE
NORTHERN NC PORTION OF CWA AND SCATTERED SHOWERS ACROSS THE
SOUTHERN PORTION OF NC AND ALSO NE GA AND THE UPSTATE. THE FREEZING
LEVEL IS EXPECTED TO COME DOWN TO ABOUT 2 THOUSAND FEET OVER
NORTH NC MTNS SO MUCH OF THE PRECIPITATION THAT FALLS THIS MORNING
WILL BE SNOW. A LITTLE SNOW COULD ALSO MIX IN OVER THE HIGHER
ELEVATIONS OF THE SOUTHERN MOUNTAINS BUT AMOUNTS OF PRECIPITATION
SHOULD BE LESS DUE TO THE MORE SCATTERED NATURE. SOME RUMBLES OF
THUNDER WILL BE POSSIBLE EAST OF THE MTNS DUE TO THE STEEP LAPSE
RATES THAT WILL ACCOMPANY THE SHOWER ACTIVITY.

STRONG WINDS WILL COME UP BEHIND THE FRONT THIS AFTERNOON WITH WINDS
AVERAGING 25 TO 35 MPH WITH GUSTS INTO THE 40S. OUTSIDE THE MTNS
WINDS 20 TO 25 MPH AND GUSTY THIS AFTERNOON CAN BE EXPECTED. WINDS
DIMINISH DURING THE EVENING AND COLD AIR ADVECTION SHUT OFF AROUND
MIDNIGHT. A FEW FLURRIES WILL BE POSSIBLE OF THE NORTHERN NC MTNS
THIS AFTERNOON AND EVENING WITH THE STRONG NW FLOW AND COLD AIR
ADVECTION.

SOME CLOUDINESS WILL INCREASE BACK OVER THE AREA MONDAY AFTERNOON
AND EVENING AS WARM AIR ON THE BACK SIDE OF HIGH PRESSURE MOVING
ACROSS RETURNS.

FCSTID = 69
GSP   62  34  65  47 /  30   0  10  10
AND   62  34  65  47 /  30   0  10  10
CLT   62  34  65  47 /  40   0  10  10
HKY   55  34  61  43 /  50  10   0  10
AVL   50  32  60  40 /  40  10  10  10

.GSP...
GA...NONE.
NC...WINTER WEATHER ADVISORY FOR THIS MORNING FOR ZONES NCZ033...
NCZ048>050.
WIND ADVISORY FOR THIS AFTERNOON FOR ZONES
NCZ033...NCZ048>053...NCZ058>059...NCZ062>065.
SC...NONE.

RBN/CSH

In the hours before

Local storm report, Apr 1, 10:18 AM EDT, 51 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1018 AM EDT SUN APR 01 2001

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

1013 AM    GREER                     SC   .75 INCH HAIL
04/01/01   GREENVILLE                     SPOTTER REPORTED PEA TO
                                          DIME HAIL...MOSTLY PEA
                                          7BUT A GOOD BIT OF DIME

JONES

Local storm report, Apr 1, 10:58 AM EDT, 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1058 AM EDT SUN APR 01 2001

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

1049 AM    GAFFNEY                   SC   .75 INCH HAIL
04/01/01   CHEROKEE                       ALSO MEASURED 53 MPH WIND
                                          GUST. REPORTED BY SKYWARN
                                     2     SPOTTER.

CSH

Local storm report, Apr 1, 11:02 AM EDT, 7 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
1102 AM EDT SUN APR 01 2001

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

1100 AM    GAFFNEY                   SC   .75 INCH HAIL
04/01/01   CHEROKEE                       HAIL COVERING GROUND.
                                          REPORTED BY SKYWARN
                                          SPOTTER.

CSH

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 1, 10:54 AM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Union, York	51 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2001 Every severe thunderstorm warning in 2001

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.