Alert archive / South Carolina / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 1, NWS Greenville-Spartanburg, SC

February 4, 2003Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Feb 4, 2003, 4:23 AM EST for Greenville County, South Carolina. It was in force for 22 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: Feb 4, 2003, 4:23 AM EST (09:23 UTC)
Expired: Feb 4, 2003, 4:45 AM EST
In force: 22 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Counties, with a storm outline in the text

County Greenville County, SC

The radar

The Greer radar (KGSP), 25 km from the middle of the area, began a volume at 09:25 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 9.4 hours before the alert went out and 258 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 2773 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: 207 m²/s²
0-3 km storm-relative helicity: 240 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.

363 
WUUS52 KGSP 040923
SVRGSP
SCC045-040945-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
423 AM EST TUE FEB 4 2003

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CENTRAL GREENVILLE COUNTY IN UPSTATE SOUTH CAROLINA

* UNTIL 445 AM EST

* AT 423 AM EST...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
  THUNDERSTORM 13 MILES NORTHWEST OF GREENVILLE...OR ABOUT 3 MILES
  SOUTH OF MARIETTA...MOVING EAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  TRAVELERS REST AT 425 AM EST.
  PARIS MOUNTAIN STATE PARK AT 430 AM EST.
  TAYLORS AT 435 AM EST.
  GOWENSVILLE AT 440 AM EST.
  GREER AT 445 AM EST.

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 3514 8257 3493 8262 3475 8222 3513 8221

$$

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 Feb 4, 3:52 AM EST, 31 minutes earlier.

Area forecast discussion, Feb 4, 3:52 AM EST, 31 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
352 AM EST TUE FEB 4 2003

FROPA EARLY THIS MORNING WITH RAPID DRYING LEE LATE THIS MORNING. NW
FLOW SHOWERS LATE MORNING TN LINE...CHANGING OVER TO SNOW AS
THICKNESS LOWERS THIS AFTERNOON...CONTINUING INTO EVENING.
COORDINATED SNOW AMOUNT WITH RNK/MRX...AND NO SNOW ADVISORY YET FOR
THIS AFTERNOON OR EVENING. WIND WILL BE UP TODAY...AND BUFKIT
SHOWING 38 KTS AT AVL. EVEN IF BUFKIT IS HIGH...N MOUNTAINS WILL BE
HIGHER...AND WILL GO WITH WIND WARNING N NC MTS...ADVISORY REST OF
MOUNTAINS FOR TODAY. WINDS BELOW ADVISORY CRITERIA TONIGHT...THOUGH
STILL WINDY NC MTS. SNOW CUTS OFF ALL BUT N NC MTS BY 06Z...WHERE
SLIGHT CHANCE LINGERS.

NEXT PROBLEM IS THU. MODELS FASTER WITH NEXT SYSTEM AND
MOISTURE...ESPECIALLY GFS. USING CONSERVATIVE ETA APPROACH BRINGS
PRECIP INTO AREA THU MORNING. PARTIAL THICKNESS SUPPORTS RAIN
SW...MIX NE THU AM...BECOMING SNOW NE...MIX I-26...RAIN SW BY AFTN.
NC MTS ALL SNOW. STARTED WITH SMALL POPS...AS UNCERTAINTY ABOUNDS.

MODEL GUIDANCE TEMPERATURES FLUCTUATING. TRIED TO STAY CLOSE TO
GUIDANCE.

EXTENDED WRAPS UP WINTER WX LATE FRI. DRY WEEKEND...FOLLOWED BY
ANOTHER S STREAM SYSTEM MON WITH CHANCE OF WINTER WX.

FCSTID =    7
GSP   58  30  49  30 /  50   0   0  10
AND   59  30  50  30 /  50   0   0  10
CLT   59  30  50  30 /  60   0   0  10
HKY   57  28  46  28 /  50   0   0  10
AVL   53  24  44  25 /  50  10   0  10

.GSP...
GA...WIND ADVISORY FOR TODAY FOR ZONES GAZ010...GAZ017.
NC...HIGH WIND WARNING FOR TODAY FOR ZONES NCZ033...NCZ049>050.
WIND ADVISORY FOR TODAY FOR ZONES NCZ048...NCZ051>053...NCZ058>059...
NCZ062>065.
SC...WIND ADVISORY FOR TODAY FOR ZONES SCZ001>003.

O7

Hazardous weather outlook, Feb 3, 5:00 AM EST, 23 hours 23 minutes before

GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014-
019-031200-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
500 AM EST MON FEB 3 2003

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

.DAY ONE...TODAY

THERE IS A CHANCE OF THUNDERSTORMS TONIGHT.

.DAYS TWO THROUGH SEVEN...

THERE IS A CHANCE OF SNOW SHOWERS IN THE NORTH CAROLINA MOUNTAINS
WEST OF ASHEVILLE TUESDAY AFTERNOON...CONTINUING IN THE NORTHERN
MOUNTAINS TUESDAY NIGHT. THERE IS A CHANCE OF SNOW MIXED WITH RAIN
THURSDAY NIGHT AND FRIDAY. THERE IS A CHANCE OF SNOW SHOWERS IN THE
NORTH CAROLINA MOUNTAINS WEST OF ASHVILLE FRIDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT ANTICIPATED.

07

In the hours before

Special weather statement, Feb 4, 3:44 AM EST, 39 minutes before

GAZ010-017-018-026-028-029-NCZ062>072-082-SCZ001>014-019-041130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
344 AM EST TUE FEB 4 2003

...STRONG GUSTY WINDS TO MOVE ACROSS THE AREA THIS MORNING...

A LINE OF THUNDERSTORMS...EXTENDING SOUTHWARD FROM JUST NORTH OF THE
NORTH CAROLINA-SOUTH CAROLINA BORDER...WILL SWEEP QUICKLY ACROSS
NORTHEAST GEORGIA AND THE WESTERN CAROLINAS EARLY THIS MORNING.
STRONG AND GUSTY WINDS WILL ACCOMPANY THESE STORMS.

THE LINE WILL REACH GREENVILLE AND ANDERSON ABOUT 430 AM...AND THE
CHARLOTTE AREA ABOUT 530 AM. PERSONS IN THE PATH OF THESE STORMS
SHOULD EXPECT WIND GUSTS AS HIGH AS 45 MPH AS THE STORMS PASS.

STAY TUNED TO NOAA WEATHER RADIO OR THE MEDIA FOR THE LATEST WEATHER
INFORMATION.

RWH

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; radar from the NEXRAD Level II archive.