Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 344, NWS Greenville-Spartanburg, SC

August 10, 2003Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 10, 2003, 3:34 PM EDT for Pickens County, South Carolina. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 10, 2003, 3:34 PM EDT (19:34 UTC)
Expired
Aug 10, 2003, 4:15 PM EDT
In force
41 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Counties, with a storm outline in the text

County Pickens County, SC

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 7.6 hours before the alert went out and 244 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, Peachtre/Fal Fld, GA at 12:00Z on 2003-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1007 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, Peachtre/Fal Fld, GA at 12:00Z on 2003-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 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
1007 J/kg
Mixed-layer CIN
-51 J/kg
Mixed-layer LCL
1077 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
19 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 101934
SVRGSP
SCC077-102015-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
334 PM EDT SUN AUG 10 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN AND CENTRAL PICKENS COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 415 PM EDT

* AT 332 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A 
  SEVERE THUNDERSTORM 4 MILES NORTH OF PICKENS...OR 3 MILES 
  SOUTHWEST OF PUMPKINTOWN. THE STORM WAS NEARLY STATIONARY...BUT 
  RADAR TRENDS SUGGESTED A SLOW MOVEMENT TO THE EAST-NORTHEAST CAN 
  BE EXPECTED.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  PUMPKINTOWN AT 355 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.

LAT...LON 3504 8276 3481 8274 3486 8259 3499 8255
          3505 8266

$$
BURRUS

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 10, 1:55 PM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Aug 10, 1:55 PM EDT, 1 hour 39 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
155 PM EDT SUN AUG 10 2003

FREEZING LEVEL A BIT LOWER WITH SLIGHTLY DRYER AIR MOVING IN AT MID
LEVELS. UPPER TROF STILL SPINNING WEAK VORT LOBES THRU AREA AND
EXPECT ANOTHER ROUND OF AT LEAST SCT TSTMS THROUGH THIS EVE. NOT
MUCH CHANGE IN THE PATTERN FOR THE NEXT COUPLE DAYS...THEN THE S
PART OF THE UPPER TROF THAT HAS BEEN KEEPING THE SE U.S. IN MOIST
UNSTABLE FLOW IS FCST TO CUT OFF AND MOVE W...WITH THE N PART
FILLING. AS THIS HAPPENS THE BERMUDA HIGH WILL PUSH INTO THE AREA
TOWARD MID WEEK. THERE WILL STILL BE A LOW CHANCE OF LATE DAY
TSTMS...BUT COVERAGE SHOULD BE LESS. GFS STILL HINTING AT A TROPICAL
WAVE APPROACHING THE FAR SE U.S. BY THE LATTER HALF OF THE
WEEK...WHICH COULD AFFECT WEATHER HERE NEXT WEEKEND OR LATER.

FCSTID = 77
GSP   67  85  67  86 /  50  40  40  30
AND   67  86  68  86 /  50  40  40  30
CLT   67  85  67  86 /  50  40  40  30
HKY   64  84  65  85 /  60  50  50  30
AVL   62  81  63  82 /  60  50  50  30

.GSP...
GA...NONE.
NC...FLOOD WATCH FOR TONIGHT FOR ZONES NCZ034>035...NCZ054>056.

SC...NONE.

RB
Hazardous weather outlook, Aug 10, 6:21 AM EDT, 9 hours 13 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-101215-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
621 AM EDT SUN AUG 10 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA...
UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA.

.DAY ONE...TODAY

A FLOOD WATCH IS IN EFFECT TODAY AND TONIGHT IN THE NORTHERN
FOOTHILLS OF NORTH CAROLINA...FROM MCDOWELL COUNTY TO CALDWELL
COUNTY...AND IN ALEXANDER AND CATAWBA COUNTIES. SEVERE THUNDERSTORMS
ARE POSSIBLE THIS AFTERNOON AND EVENING ACROSS THE WESTERN CAROLINAS
AND NORTHEAST GEORGIA.

.DAYS TWO THROUGH SEVEN...

THUNDERSTORMS ARE IN THE FORECAST FOR MOST OF THE AREA THROUGH NEXT
SUNDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED.

07

In the hours before

Local storm report, Aug 10, 3:28 PM EDT, 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
328 PM EDT SUN AUG 10 2003

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

320 PM     TIGER                     GA   1/2 INCH HAIL
08/10/03   RABUN                          EMERGENCY PERSONNEL
                                          REPORTED BETWEEN PEA AND
                                          DIME SIZE HAIL.

RB

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 4:02 PM EDTSevere Thunderstorm WarningGSPGreenville58 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2003Every severe thunderstorm warning in 2003

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.