Alert archive / North Carolina / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 273, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Sep 4, 2002, 4:00 PM EDT for Iredell County, North Carolina. It was in force for 60 min. 1 report 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
- Sep 4, 2002, 4:00 PM EDT (20:00 UTC)
- Expired
- Sep 4, 2002, 5:00 PM EDT
- In force
- 60 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Whole counties
County Iredell County, NC
The radar
The Roanoke radar (KFCX), 146 km from the middle of the area, began a volume at 20:01 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 4, 4:08 PM EDT | Hail 0.75 | Statesville, NC |
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, 8.0 hours before the alert went out and 93 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
- 1009 J/kg
- Mixed-layer CIN
- -85 J/kg
- Mixed-layer LCL
- 1341 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 71 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
577 WUUS52 KGSP 042000 SVRGSP NCC097-042100- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 400 PM EDT WED SEP 4 2002 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... IREDELL COUNTY IN THE PIEDMONT OF NORTH CAROLINA * UNTIL 500 PM EDT * AT 400 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM WITH DAMAGING WINDS 6 MILES NORTHEAST OF STATESVILLE...OR ABOUT 3 MILES SOUTHWEST OF TURNERSBURG...MOVING SOUTH AT 5 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... STATESVILLE AT 425 PM EDT. TROUTMAN AT 455 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. $$ MOORE
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 4, 2:02 PM EDT, 1 hour 58 minutes earlier.
Area forecast discussion, Sep 4, 2:02 PM EDT, 1 hour 58 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 202 PM EDT WED SEP 4 2002 COLD FRONT DROPPING TOWARD AREA NOW. CAPES EXPECTED TO BE QUITE HIGH ALONG I-77...AND SEVERE WEATHER POSSIBLE. FROPA EXPECTED LATE TONIGHT...SO WILL RUN CHANCE POPS THROUGH THIS EVENING. REST OF FORECAST FEATURES DRY AIR OVER NC...WITH MARGINAL MOISTURE GA/SC. NO MENTIONABLE POPS THU-SAT. AVN/ETA TEMPERATURES CONSIDERABLY HIGHER THAN NGM. PREFER CONSERVATIVE APPROACH ON TEMPERATURES...SINCE AIR MASS CHANGE NOT TOO DRAMATIC...AND FRONT DOES NOT SINK THAT FAR S. SURFACE AND UPPER RIDGING ARE EXPECTED TO REMAIN FIRMLY IN CONTROL WITH DRY WEATHER ACROSS THE REGION DURING THE MEDIUM RANGE PERIOD...THUS WILL NOT STRAY FAR FROM MEX GUIDANCE. FCSTID = 7 GSP 68 90 66 85 / 30 10 20 20 AND 69 92 67 86 / 30 10 20 20 CLT 67 89 65 84 / 40 10 10 10 HKY 65 88 61 83 / 30 10 10 10 AVL 62 86 58 81 / 30 10 10 10 .GSP... GA...NONE. NC...NONE. SC...NONE. O7
In the hours before
Special weather statement, Sep 4, 11:18 AM EDT, 4 hours 42 minutes before
GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-050030- SEVERE WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1118 AM EDT WED SEP 4 2002 ...A FEW SEVERE THUNDERSTORMS POSSIBLE THIS AFTERNOON... A WEAK COLD FRONT WILL MOVE INTO THE CAROLINAS TODAY PRODUCING SCATTERED SHOWERS AND THUNDERSTORMS ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. A FEW THUNDERSTORMS MAY BECOME SEVERE THIS AFTERNOON AND EARLY EVENING...AS THE ENVIRONMENT BECOMES MORE FAVORABLE FOR STORMS TO PRODUCE WIND GUSTS GREATER THAN 60 MPH AND HAIL THE SIZE OF DIMES OR LARGER. ALTHOUGH SCATTERED THUNDERSTORMS ARE EXPECTED ACROSS THE AREA TODAY...THE GREATEST CHANCE OF SEVERE THUNDERSTORMS SHOULD BE LIMITED TO THE FOOTHILLS AND PIEDMONT OF NORTH CAROLINA. THUNDERSTORMS WILL LINGER PAST SUNSET...BUT THE SEVERE WEATHER POTENTIAL WILL RAPIDLY DIMINISH. SPOTTER GROUPS SHOULD BE PREPARED TO ACTIVATE QUICKLY LATE THIS AFTERNOON AND THIS EVENING. DISPATCHERS SHOULD ENSURE COUNTY EMERGENCY MANAGEMENT OFFICIALS ARE AWARE OF THIS INFORMATION. MOORE
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 4, 5:19 PM EDT | Severe Thunderstorm Warning | GSP | Iredell | 41 min |
| Sep 4, 5:34 PM EDT | Severe Thunderstorm Warning | GSP | Caldwell | 41 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2002Every severe thunderstorm warning in 2002
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; radar from the NEXRAD Level II archive.