Alert archive / North Carolina / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 43, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 23, 2004, 7:05 PM EDT for Union County, North Carolina. It was in force for 40 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
- May 23, 2004, 7:05 PM EDT (23:05 UTC)
- Expired
- May 23, 2004, 7:45 PM EDT
- In force
- 40 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Union County, NC
The radar
The Columbia radar (KCAE), 151 km from the middle of the area, began a volume at 23:09 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
Roanoke, VA (KRNK), launched 12:00Z, 11.1 hours before the alert went out and 240 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
- 295 J/kg
- Mixed-layer CIN
- -72 J/kg
- Mixed-layer LCL
- 1011 m above ground
- 0-6 km bulk shear
- 14 kt
- 0-1 km storm-relative helicity
- -30 m²/s²
- 0-3 km storm-relative helicity
- 4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS52 KGSP 232305 SVRGSP NCC179-232345- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 705 PM EDT SUN MAY 23 2004 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHERN UNION COUNTY IN THE PIEDMONT OF NORTH CAROLINA * UNTIL 745 PM EDT * AT 705 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 11 MILES NORTHEAST OF MONROE...OR ABOUT 4 MILES WEST OF NEW SALEM...MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE NEAR... NEW SALEM AROUND 720 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 3522 8054 3504 8055 3499 8000 3524 7999 $$ HG/CSH
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 May 23, 3:08 PM EDT, 3 hours 57 minutes earlier.
Area forecast discussion, May 23, 3:08 PM EDT, 3 hours 57 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 308 PM EDT SUN MAY 23 2004 .SHORT TERM... LEE TROUGH IS CURRENTLY RESPONSIBLE FOR DECENT COVERAGE OF CONVECTION ACROSS THE NC FOOTHILLS. STRONGER FLOW IS RESULTING IN FASTER MOVEMENT OF CELLS THAN HAS BEEN OBSERVED IN PREVIOUS DAYS...AND LEE CONVECTION SHOULD SUSTAIN ITSELF AS IT MOVES EAST INTO SLIGHTLY MORE UNSTABLE AIR ACROSS THE FAR WESTERN PIEDMONT. CONVECTION SHOULD BE LARGELY DIURNAL...ALTHOUGH OUTFLOW INTERACTIONS SHOULD ALLOW CONVECTION TO PERSIST FOR AT LEAST A COUPLE OF HOURS AFTER SUNSET. THREAT OF PULSE SEVERE WILL CONTINUE INTO THE EVENING HOURS...ALTHOUGH SHEAR MAY BE JUST STRONG ENOUGH TO SUPPORT A MULTICELL CLUSTER OR TWO. SW TROUGH AND ASSOCIATED SURFACE LOW TRAVERSING THE NORTHEAST U.S. ON MONDAY WILL RESULT IN LOW LEVEL FLOW WITH A STRONG WESTERLY COMPONENT ACROSS OUR AREA. THE ETA MIXES OUT DEWPOINT IN THE LEE TO THE LOW TO MID 60S TOMORROW...WHICH MAKES SENSE WITHIN THE DOWNSLOPE REGIME. HOWEVER...LEE TROUGH SHOULD ONCE AGAIN BE IN PLACE TO PROVIDE FOCUS FOR CONVECTIVE DEVELOPMENT. IN ADDITION...SHEAR WILL INCREASE JUST A BIT MORE TOMORROW...INCREASING THE LIKELIHOOD OF CONVECTION BECOMING ORGANIZED ALONG OUTFLOWS LAID DOWN BY HIGH TERRAIN OR LEE TROUGH CONVECTION. MOS POPS TOMORROW ARE VERY LOW...PROBABLY DUE TO THE WESTERLY FLOW...BUT OUR FORECAST WILL FEATURE CHANCE POPS ACROSS ROUGHLY THE NORTHERN HALF OF THE AREA (BASICALLY ALL AREAS IN AND EAST OF THE MOUNTAINS)...WITH SILENT 20S SOUTH. WILL ESSENTIALLY USE THIS SAME ARGUMENT TO JUSTIFY HIGHER POPS FOR TUESDAY. .LONG TERM... THINGS BEGIN TO GET A LITTLE MORE INTERESTING ACROSS THE AREA DURING MID-WEEK...AS THE TRAIN OF NORTHERN U.S. SW TROUGHS CONTINUES TO FLATTEN THE RIDGE ACROSS THE DEEP SOUTH. THIS WILL ALLOW THE STATIONARY FRONTAL BOUNDARY ACROSS THE OHIO VALLEY TO SAG CLOSE TO...OR PERHAPS INTO THE CWFA DURING MID-TO-LATE WEEK. AT THE VERY LEAST...THIS WILL RENDER THE NORTHERN PART OF OUR AREA SUSCEPTIBLE TO MCS/S DEVELOPING OVER THE OHIO VALLEY AND DROPPING E/SE. IN FACT...THE GFS TRACKS AN MCS ACROSS THE NORTHERN HALF OF OUR CWFA DURING THE WEDNESDAY NIGHT PERIOD. AT THIS POINT...WE DO NOT HAVE A GREAT DEAL OF CONFIDENCE THAT THE FRONT WILL SAG AS FAR SOUTH AS THE MODELS ARE DEPICTING...BUT WILL INCREASE POPS WED NIGHT INTO THE 40-50 PERCENT RANGE ACROSS THE NORTH. THE FRIDAY THRU SUNDAY PERIOD MARKED BY THE POTENTIAL OF ANOTHER SFC FNT DROPPING INTO THE AREA FROM THE NORTH SATURDAY AND ONLY SLOWLY RETURNING NWD SUNDAY. RIGHT NOW...FRIDAY APPEARS TO BE THE DAY WITH THE LEAST CHC OF PRECIP. HAVE LOWERED POP TO 20 CWFA WIDE FOR AFT/EVE CONVECTION. FNT NOT A SURE THING. IN FACT...ENSEMBLE MEAN POP SIGNIFICANTLY LOWER XCPT FOR AVL. THEREFORE HAVE GONE WITH A 30 POP MTNS...20 POP ELSEWHERE FOR AFT/EVE CONVECTION SAT AND AGAIN SUN. TRENDED TEMPS UP FROM PREV FCST THESE DAYS...BUT NOT AS HIGH AS THE OPERATIONAL MOS SINCE THIS IS A SIGNIFICANT CHANGE FROM THE PREV FCST. && .PRELIMINARY POINT TEMPS/POPS... GSP 68 90 67 89 / 40 20 10 20 AND 67 91 67 90 / 30 20 10 20 CLT 67 91 66 90 / 40 20 20 20 HKY 67 89 64 89 / 40 30 20 30 AVL 59 85 60 85 / 40 30 20 30 && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && LANE/RWH
Hazardous weather outlook, May 23, 5:35 AM EDT, 13 hours 30 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 535 AM EDT SUN MAY 23 2004 GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-240934- ABBEVILLE SC-ALEXANDER NC-ANDERSON SC-AVERY NC-BUNCOMBE NC-BURKE NC- CABARRUS NC-CALDWELL NC-CATAWBA NC-CHEROKEE SC-CHESTER SC- CLEVELAND NC-DAVIE NC-ELBERT GA-FRANKLIN GA-GASTON NC-GRAHAM NC- GREATER GREENVILLE SC-GREATER OCONEE SC-GREATER PICKENS SC- GREENVILLE MOUNTAINS SC-GREENWOOD SC-HABERSHAM GA-HART GA-HAYWOOD NC- HENDERSON NC-IREDELL NC-LAURENS SC-LINCOLN NC-MACON NC-MADISON NC- MCDOWELL NC-MECKLENBURG NC-MITCHELL NC-NORTHERN JACKSON NC- OCONEE MOUNTAINS SC-PICKENS MOUNTAINS SC-POLK NC-RABUN GA-ROWAN NC- RUTHERFORD NC-SOUTHERN JACKSON NC-SPARTANBURG SC-STEPHENS GA- SWAIN NC-TRANSYLVANIA NC-UNION SC-UNION NC-YANCEY NC-YORK SC- 535 AM EDT SUN MAY 23 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA... UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA. .DAY ONE... SCATTERED TO ISOLATED SHOWERS AND THUNDERSTORMS WILL DEVELOP THIS AFTERNOON OVER THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. A FEW OF THESE THUNDERSTORMS MAY PRODUCE LARGE HAIL...STRONG WINDS...AND LOCALIZED HEAVY RAINFALL. PLEASE SEE THE LATEST SPSGSP FOR ADDITIONAL INFORMATION. .DAYS TWO THROUGH SEVEN... SCATTERED TO ISOLATED SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP NEARLY EVERY AFTERNOON THIS WEEK. THE BEST COVERAGE WILL LIKELY TAKE PLACE OVER THE HIGHER TERRAIN OF THE WESTERN CAROLINAS. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED THIS AFTERNOON.
In the hours before
Local storm report, May 23, 6:02 PM EDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
602 PM EDT SUN MAY 23 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0536 PM HAIL 5 SE GASTON 33.76N 81.04W
05/23/2004 0.25 INCH CALHOUN SC AMATEUR RADIO
QUARTER-SIZED HAIL REPORTED IN THE STAGECOACH AREA OF
SOUTHERN GASTON COUNTY. ALSO HAD 3 TO 4 INCH DIAMTER TREE
LIMBS DOWN IN THE SAME AREA.
0536 PM HAIL 5 SE GASTON 33.76N 81.04W
05/23/2004 1.00 INCH CALHOUN SC AMATEUR RADIO
QUARTER-SIZED HAIL WAS REPORTED IN THE STAGECOACH AREA OF
SOUTHERN GASTON COUNTY. ALSO HAD 3 TO 4 INCH DIAMTER
LIMBS DOWN IN THE SAME AREA.
&&
DEOLocal storm report, May 23, 6:02 PM EDT, 1 hour 3 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED TO REMOVE FIRST PART
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
602 PM EDT SUN MAY 23 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0536 PM HAIL 5 SE GASTON 33.76N 81.04W
05/23/2004 1.00 INCH GASTON NC AMATEUR RADIO
QUARTER-SIZED HAIL WAS REPORTED IN THE STAGECOACH AREA OF
SOUTHERN GASTON COUNTY. ALSO HAD 3 TO 4 INCH DIAMTER
LIMBS DOWN IN THE SAME AREA.
&&
DEOLocal storm report, May 23, 6:29 PM EDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
629 PM EDT SUN MAY 23 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0600 PM TSTM WND DMG 10 E GASTONIA 35.25N 80.99W
05/23/2004 MECKLENBURG NC COUNTY OFFICIAL
TREES ON POWER LINES IN MOUNT HOLLY.
&&
DEOLocal storm report, May 23, 6:29 PM EDT, 36 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED FOR COUNTY
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
629 PM EDT SUN MAY 23 2004
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION...ST.. ...SOURCE....
..REMARKS..
0600 PM TSTM WND DMG 10 E GASTONIA 35.25N 80.99W
05/23/2004 GASTON NC COUNTY OFFICIAL
TREES ON POWER LINES IN MOUNT HOLLY.
&&
DEOSpecial weather statement, May 23, 6:30 PM EDT, 35 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 630 PM EDT SUN MAY 23 2004 NCZ057-072-232330- CABARRUS-ROWAN- INCLUDING THE CITIES OF...CONCORD...SALISBURY 630 PM EDT SUN MAY 23 2004 ...STRONG THUNDERSTORMS TO AFFECT CABARRUS AND ROWAN COUNTIES THROUGH 730 PM... STRONG THUNDERSTORMS WILL MOVE NORTHEAST FROM CROFT TO CONCORD THROUGH 7 PM...AND THEN AFFECT THE SOUTHEASTERN PART OF ROWAN COUNTY...NEAR ROCKWELL BY 730 PM. THESE THUNDERSTORMS WILL PRODUCE TORRENTIAL RAINFALL AND FREQUENT LIGHTNING AND MAY BE ACCOMPANIED BY SMALL HAIL AND GUSTY WINDS TO 40 MPH. HG
Special weather statement, May 23, 6:57 PM EDT, 8 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 657 PM EDT SUN MAY 23 2004 NCZ057-072-232330- CABARRUS-ROWAN- INCLUDING THE CITIES OF...CONCORD...SALISBURY 657 PM EDT SUN MAY 23 2004 ...STRONG THUNDERSTORMS WILL AFFECT EASTERN CABARRUS AND ROWAN COUNTIES UNTIL 730 PM... NATIONAL WEATHER SERVICE RADAR INDICATED NUMEROUS STRONG THUNDERSTORMS MOVING NORTHEAST AT 25 MPH FROM CONCORD TOWARD ROCKWELL. THESE THUNDERSTORMS WILL LIKELY BE ACCOMPANIED BY WIND GUSTS TO 40 MPH AND PEA SIZED HAIL. WIND GUSTS OF THIS MAGNITUDE WILL LIKELY BLOWN DOWN SMALL LIMBS. THE NATIONAL WEATHER SERVICE IS WATCHING THESE THUNDERSTORMS CLOSELY IN CASE A WARNING BECOMES NECESSARY. HG
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 8:21 PM EDT | Severe Thunderstorm Warning | GSP | Buncombe | 54 min |
| May 23, 1:25 PM EDT | Severe Thunderstorm Warning | GSP | Caldwell | 65 min |
| May 23, 2:18 PM EDT | Severe Thunderstorm Warning | GSP | McDowell | 42 min |
| May 23, 3:23 PM EDT | Severe Thunderstorm Warning | GSP | Madison | 52 min |
| May 23, 5:30 PM EDT | Severe Thunderstorm Warning | GSP | Gaston | 45 min |
| May 23, 5:33 PM EDT | Severe Thunderstorm Warning | GSP | Davie | 42 min |
| May 23, 5:49 PM EDT | Severe Thunderstorm Warning | GSP | Mecklenburg | 56 min |
Nearby
Severe Thunderstorm Warnings in North Carolina, 2004Every severe thunderstorm warning in 2004
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.