Alert archive / South Carolina / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 130, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 23, 2001, 5:55 PM EDT for Spartanburg County, South Carolina. It was in force for 35 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
- Sep 23, 2001, 5:55 PM EDT (21:55 UTC)
- Expired
- Sep 23, 2001, 6:30 PM EDT
- In force
- 35 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Spartanburg County, SC
The nearest sounding before it
Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 9.9 hours before the alert went out and 228 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.
- Mixed-layer CAPE
- 140 J/kg
- Mixed-layer CIN
- -88 J/kg
- Mixed-layer LCL
- 1173 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 35 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
257 WUUS52 KGSP 232155 SVRGSP SCC083-232230- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 555 PM EDT SUN SEP 23 2001 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN SPARTANBURG COUNTY IN UPSTATE SOUTH CAROLINA * UNTIL 630 PM EDT * AT 555 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING WINDS 10 MILES SOUTH OF COLUMBUS...OR ABOUT 3 MILES SOUTHWEST OF CAMPOBELLO...MOVING NORTH AT 10 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... LANDRUM AT 610 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. $$ MCAVOY
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 Sep 23, 3:07 PM EDT, 2 hours 48 minutes earlier.
Area forecast discussion, Sep 23, 3:07 PM EDT, 2 hours 48 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 300 EDT SUN SEP 23 2001 SEVERAL DIFFERENT FORCING MECHANISMS WILL AFFECT THE WESTERN CAROLINAS AND NORTHEAST GEORGIA DURING THE NEXT TWO DAYS. A LOW LEVEL CONVERGENCE AXIS SETTING UP ACROSS THE PIEDMONT...WITH DEWPOINTS IN THE UPPER 60S TO AROUND 70...WILL KEEP SCATTERED CONVECTION GOING THROUGH THE EVENING HOURS. A VORT MAX EJECTING ENE FROM THE BASE OF THE LONGWAVE TROUGH TONIGHT WILL COMBINE WITH INCREASING UPPER DIVERGENCE IN THE JETLET ENTRANCE REGION ALOFT TO GENERATE ADDITIONAL OMEGA OVERNIGHT. ALL OF THIS COINCIDES WITH THE STEADILY DEEPENING MOISTURE SEEN ON TIME SECTIONS. WILL NEED LIKELY POPS FOR MAINLY AFTER MIDNIGHT WITH LOWEST CHC NW PIEDMONT. FRONTAL BAND WILL WORK SWIFTLY ACROSS THE REGION DURING THE DAY TOMORROW WITH A STRONG PUSH 18Z TO 00Z WITH THE MAIN VORT. LACK OF HEATING WILL LIMIT INSTABILITY SOMEWHAT...BUT HIGH SFC DEWPOINTS AND DYNAMICAL FORCING MAY KEEP STRONG CONVECTION GOING WITH THE FRONT. SHEAR PROFILES LOOK QUITE INTERESTING ON THE AVN...WHILE ETA WIND SPEEDS ARE SOMEWHAT LESS. DRYING ENSUES MON EVENING FOR ALL BUT NW FLOW UPSLOPE PREFERRED NC MTN AREAS WHERE LOW LEVEL MOISTURE POOL WRAPS BACK IN TO KEEP CHC OF SHOWERS GOING. 850 MB ZERO ISOTHERM FLIRTS WITH THE NRN MTNS...BUT MAIN COLD POOL STAYS NW OF REGION...AND IT IS CLIMATOLOGICALLY VERY EARLY FOR NW FLOW MOUNTAIN SNOWS. WILL ADVERTISE SOME UPPER 30S TEMPS HOWEVER TO GO WITH LINGERING RAIN SHOWERS IN THE NRN MTNS. ADDITIONAL VORTS SWING SOUTHWARD DOWN BACKSIDE OF MEAN TROUGH...BUT WITH LITTLE MOISTURE TO WORK WITH. WILL KEEP EXTENDED FORECAST DRY AND RELATIVELY COOL THROUGH SUNDAY. FCSTID = 33 GSP 68 75 55 66 / 70 80 10 0 AND 69 75 55 66 / 70 80 10 0 CLT 67 76 57 65 / 60 80 30 0 HKY 65 72 52 62 / 70 80 10 0 AVL 63 68 46 59 / 70 90 30 10 .GSP... GA...NONE. NC...NONE. SC...NONE. HG
In the hours before
Local storm report, Sep 23, 4:45 PM EDT, 1 hour 10 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
445 PM EDT SUN SEP 23 2001
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
440 PM MAULDIN SC .75 INCH HAIL
09/23/01 GREENVILLE MAULDIN PD REPORTED DIME
HAIL AND STRONG WINDS.
NO REPORTS DAMAGE YET.
JONESLocal storm report, Sep 23, 5:37 PM EDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
537 PM EDT SUN SEP 23 2001
TIME(EDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
445 PM MAULDIN SC WIND DAMAGE
09/23/01 GREENVILLE MAULDIN PD REPORTED MANY
LARGE TREES BLOWN DOWN
ACROSS CITY.
530 PM 2 N GREER SC GUSTS TO 55 MPH
09/23/01 SPARTANBURG NWS EMPLOYEE REPORTED
WIND AND MARBLE HAIL
JONESThe office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 23, 4:27 PM EDT | Severe Thunderstorm Warning | GSP | Greenville | 48 min |
Nearby
Severe Thunderstorm Warnings in South Carolina, 2001Every 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; the sounding from the Mesonet's radiosonde archive.