Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 362, NWS Greenville-Spartanburg, SC

August 17, 2003Anderson County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Aug 17, 2003, 8:04 PM EDT for Anderson County, South Carolina. It was in force for 56 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 17, 2003, 8:04 PM EDT (00:04 UTC)
Expired: Aug 17, 2003, 9:00 PM EDT
In force: 56 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County Anderson 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 00:00Z, 0.1 hours before the alert went out and 221 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: 1192 J/kg
Mixed-layer CIN: -17 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.9

Open this sounding in Storm Lab

The text

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

000 
WUUS52 KGSP 180004
SVRGSP
SCC007-180100-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
805 PM EDT SUN AUG 17 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  ANDERSON COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 900 PM EDT

* AT 804 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 8 MILES NORTH OF ANDERSON...MOVING SOUTHEAST AT 25
  MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  ANDERSON AT 815 PM EDT.
  BELTON AT 825 PM EDT.
  HONEA PATH AT 840 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 3470 8257 3461 8276 3429 8263 3446 8235

$$
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 Aug 17, 7:08 PM EDT, 56 minutes earlier.

Area forecast discussion, Aug 17, 7:08 PM EDT, 56 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
708 PM EDT SUN AUG 17 2003

UPDATE FORTHCOMING TO REMOVE SEVERE THUNDERSTORM HEADLINES FROM
COUNTIES THAT WERE IN WEATHER WATCH 865. WILL ALSO LOWER POPS IN THE
NORTHERN FOOTHILLS AND THE NORTH CAROLINA MOUNTAINS.

FCSTID =   44
GSP   70  89  68  88 /  60  30  30  20
AND   70  90  69  89 /  60  30  30  20
CLT   70  89  69  88 /  60  30  30  20
HKY   69  88  67  87 /  40  30  30  20
AVL   64  85  64  83 /  40  30  30  20

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

BURRUS

Hazardous weather outlook, Aug 17, 5:45 AM EDT, 14 hours 19 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-171145-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
545 AM EDT SUN AUG 17 2003

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

.DAY ONE...TODAY

A COLD FRONT WILL MOVE SLOWLY TOWARD THE WESTERN CAROLINAS AND
NORTHEAST GEORGIA TODAY. SHOWERS AND THUNDERSTORMS WILL ACCOMPANY
THIS FRONT INTO THE AREA. SOME OF THESE STORMS COULE PRODUCE SEVERE
WEATHER AND LOCALIZED FLASH FLOODING. PLEASE SEE THE SEVERE WEATHER
OUTLOOK...CAESPSGSP FOR FURTHER INFORMATION.

.DAYS TWO THROUGH SEVEN...

WIDELY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED ON MONDAY. A
FEW SEVERE STORMS WILL BE POSSIBLE. THE REMAINDER OF THE WEEK IS
EXPECTED TO BE DRIER...WITH NO MORE THAN ISOLATED SHOWERS AND
THUNDERSTORMS EXPECTED THROUGH THE PERIOD.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUIRED TODAY.

LANE

In the hours before

Local storm report, Aug 17, 4:46 PM EDT, 3 hours 18 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
446 PM EDT SUN AUG 17 2003

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

410 PM     7 E LINCOLNTON            NC   WIND DAMAGE
08/17/03   LINCOLN                        TRAINED HAM SPOTTER
                                          REPORTED TWO TREES DOWN
                                          ON HWY 150...ONE 18 IN
                                          DIAMETER AND THE OTHER
                                          ABOUT 12.

415 PM     3 E CHERRYVILLE           NC   NON-SVR REPORT
08/17/03   GASTON                         HAM REPORTED 45-50 MPH
                                          WIND GUST...TORRENTIAL
                                          RAIN PARTIALLY IMPEDING
                                          TRAFFIC AND FREQUENT
                                          LIGHTNING.

LAMB

Local storm report, Aug 17, 5:07 PM EDT, 2 hours 57 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
507 PM EDT SUN AUG 17 2003

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

448 PM     WACO                      NC   WIND DAMAGE
08/17/03   CLEVELAND                      EMERGENCY PERSONNEL
                                          REPORTED TREES DOWN.

459 PM     SHELBY                    NC   WIND DAMAGE
08/17/03   CLEVELAND                      EMERGENCY PERSONNEL
                                          REPORTED TREES DOWN.

RB

Local storm report, Aug 17, 5:08 PM EDT, 2 hours 56 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
508 PM EDT SUN AUG 17 2003

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

450 PM     BELWOOD                   NC   1.75 INCH HAIL
08/17/03   CLEVELAND                      SPOTTER REPORTED GOLFBALL
                                          SIZE HAIL AND 40 MPH WIND
                                          GUST.

LAMB

Local storm report, Aug 17, 6:00 PM EDT, 2 hours 4 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
600 PM EDT SUN AUG 17 2003

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

530 PM     GROVER                    NC   WIND DAMAGE
08/17/03   CLEVELAND                      COUNTY 911 REPORTED A
                                          TREE DOWN ON A HOUSE.
                                          ALSO WATERSON RD FLOODED.
                                          EVENT TIME ESTIMATED.

545 PM     2 N BLACKSBURG            SC   WIND DAMAGE
08/17/03   CHEROKEE                       911 CENTER REPORTED TREES
                                          DOWN.

LAMB

Local storm report, Aug 17, 6:06 PM EDT, 1 hour 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
606 PM EDT SUN AUG 17 2003

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

550 PM     CORNELIA                  GA   WIND DAMAGE
08/17/03   HABERSHAM                      TREES AND POWER LINES
                                          DOWN ACROSS THE SOUTHERN
                                          PART OF THE COUNTY.
                                          REPORTED BY COUNTY COMMS
                                          CENTER.

MCAVOY

Local storm report, Aug 17, 6:34 PM EDT, 1 hour 30 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE SPARTANBURG SC
634 PM EDT SUN AUG 17 2003

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

605 PM     GAFFNEY                   SC   WIND DAMAGE
08/17/03   CHEROKEE                       COUNTY 911 REPORTED
                                          WINDOWS BLOWN OUT OF A
                                          BUILDING. ALSO CARS
                                          FLOODED IN A PARKING LOT.

630 PM     2 S ROCKWELL              NC   FLASH FLOOD
08/17/03   ROWAN                          SPOTTER REPORTED
                                          TRIBUTARY OF JENNIE WOLF
                                          CREEK OUT OF BANKS ONTO
                                          SHUPING MILL RD AT
                                          ROWAN-CABARRUS COUNTY
                                          LINE. ROAD IS IMPASSABLE.
                                          SEVERAL OTHER ROADS IN
                                          SOUTHERN ROWAN ARE
                                          COVERED IN WATER.

LAMB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 17, 8:46 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville	59 min
Aug 17, 9:24 PM EDT	Flash Flood Warning	GSP	Anderson	2 hr
Aug 17, 9:45 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenwood	60 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2003 Every 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.