Alert archive / North Carolina / Severe Thunderstorm Warnings in 2004
Severe Thunderstorm Warning 29, NWS Greenville-Spartanburg, SC
NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 22, 2004, 2:34 PM EDT for Caldwell County, North 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
- May 22, 2004, 2:34 PM EDT (18:34 UTC)
- Expired
- May 22, 2004, 3:15 PM EDT
- In force
- 41 min
- Issued by
- NWS Greenville-Spartanburg, SC
- Area
- Counties, with a storm outline in the text
County Caldwell County, NC
The radar
The Greer radar (KGSP), 147 km from the middle of the area, began a volume at 18:46 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 12:00Z, 6.6 hours before the alert went out and 158 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
- 535 J/kg
- Mixed-layer CIN
- -197 J/kg
- Mixed-layer LCL
- 1059 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 18 m²/s²
- 0-3 km storm-relative helicity
- 21 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
785 WUUS52 KGSP 221834 SVRGSP NCC027-221915- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 234 PM EDT SAT MAY 22 2004 THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHWESTERN CALDWELL COUNTY IN WESTERN NORTH CAROLINA * UNTIL 315 PM EDT * AT 233 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM 2 MILES SOUTH OF BLOWING ROCK...OR ABOUT 2 MILES NORTH OF UPTON...MOVING NORTHEAST AT 5 MPH. * THE SEVERE THUNDERSTORM WILL REMAIN IN RURAL AREAS OF NORTHERN CALDWELL COUNTY HAIL TO THE SIZE OF GOLFBALLS AND WIND GUSTS TO 70 MPH ARE LIKELY WITH THIS STORM. 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 3612 8183 3597 8171 3609 8137 3632 8155 $$ LANE
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 22, 1:10 PM EDT, 1 hour 24 minutes earlier.
Area forecast discussion, May 22, 1:10 PM EDT, 1 hour 24 minutes before
AREA FORECAST DISCUSSION NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 110 PM EDT SAT MAY 22 2004 .SHORT TERM... RELATIVELY STRONG RIDGE SET UP OVER THE SOUTHEASTERN U.S. WITH ZONAL FLOW TO THE NORTH OF CWA. DURING THE NEXT WEEK WE ARE LOOKING AT A SERIES OF SHORT WAVES MOVING OVER THE RIDGE...PROVIDING A LITTLE EXTRA FORCING TO THE SUMMERTIME PATTERN. BEST CHANCE OF CONVECTION APPEARS TO BE TOMORROW. .LONG TERM... THE RIDGE CONTINUES TO WEAKEN A LITTLE AND GET PUSHED TO THE SOUTH. LOOKING AT SLIGHTLY HIGHER POPS ON THURSDAY IN ADVANCE OF A WEAK FRONT...BUT MODELS ARE TOO INCONSISTENT TO ADVERTISE AN INCREASE IN THUNDERSTORM ACTIVITY. MAV IS DRY...ETA MOS IS DRIER. SO WILL KEEP ISOLATED WORDING APPROPRIATE FORECASTS. GFS ADVERTISES STRONG SHORT WAVE FOR NEXT SATURDAY THAT MAY DEPRESS RIDGE FAR ENOUGH SOUTH TO TRIGGER MORE SHOWERS BY NEXT WEEKEND. THIS TROUGH LOOKS WAY TO STRONG AND THE TIMING IN SUSPECT...SO AGAIN WILL STICK WITH ISOLATED WORDING. TEMPS REMAIN ABOUT THE SAME AS RIDGE DOMINATES WEATHER. GRIDS CONTAIN ADDITIONAL MESOSCALE FEATURES LIKE CLT URBAN HEAT ISLAND AND LOCAL MORNING COOLS SPOTS. && .PRELIMINARY POINT TEMPS/POPS... GSP 66 89 66 90 / 20 30 20 20 AND 66 89 65 91 / 20 30 20 20 CLT 68 89 66 90 / 20 30 20 20 HKY 66 88 65 88 / 20 30 20 20 AVL 59 84 61 85 / 20 30 20 20 && .GSP WATCHES/WARNINGS/ADVISORIES... GA...NONE. NC...NONE. SC...NONE. && DICARLO
Hazardous weather outlook, May 22, 4:59 AM EDT, 9 hours 35 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 459 AM EDT SAT MAY 22 2004 GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-230900- 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- 502 AM EDT SAT MAY 22 2004 THIS HAZARDOUS WEATHER OUTLOOK IS FOR WESTERN NORTH CAROLINA... UPSTATE SOUTH CAROLINA...AND EXTREME NORTHEAST GEORGIA. .DAY ONE... SCATTERED AFTERNOON AND EVENING THUNDERSTORMS ARE EXPECTED ACROSS THE FORECAST AREA...ESPECIALLY OVER THE MOUNTAINS. LARGE HAIL...DAMAGING WINDS AND HEAVY RAIN ARE POSSIBLE. .DAYS TWO THROUGH SEVEN... SCATTERED LATE DAY THUNDERSTORMS ARE EXPECTED MONDAY THROUGH WEDNESDAY. LARGE HAIL...DAMAGING WINDS AND HEAVY RAIN ARE POSSIBLE. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE REQUIRED. RB
In the hours before
Special weather statement, May 22, 12:11 PM EDT, 2 hours 23 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC 1211 PM EDT SAT MAY 22 2004 GAZ010-017-018-026-028-029-NCZ033>037-048>059-062>072-082-SCZ001>014- 019-222000- 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- 1211 PM EDT SAT MAY 22 2004 ...SEVERE WEATHER OUTLOOK... ISOLATED SEVERE THUNDERSTORMS AND FLASH FLOODING ARE POSSIBLE ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA THIS AFTERNOON. VERY WARM AND MOIST CONDITIONS WILL RESULT IN THE ATMOSPHERE BECOMING QUITE UNSTABLE THIS AFTERNOON ACROSS THE WESTERN CAROLINAS AND NORTHEAST GEORGIA. SCATTERED SHOWERS AND THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER THE MOUNTAINS THROUGHOUT THE AFTERNOON...WHILE ISOLATED TO WIDELY SCATTERED SHOWERS AND STORMS ARE EXPECTED TO DEVELOP OVER THE PIEDMONT AND FOOTHILLS LATER THIS AFTERNOON. THE MAGNITUDE OF FORECAST INSTABILITY SUGGESTS THAT A FEW SEVERE THUNDERSTORMS WILL BE POSSIBLE...WITH LARGE HAIL AND DAMAGING WINDS THE MAIN THREATS. SINCE COVERAGE OF SHOWERS AND STORMS IS EXPECTED TO BE GREATEST IN THE MOUNTAINS...THIS WILL BE THE MOST LIKELY LOCATION FOR SEVERE WEATHER. HOWEVER...A SEVERE STORM WILL BE POSSIBLE ANYWHERE ACROSS THE REGION THIS AFTERNOON. IN ADDITION...STORMS WILL MOVE VERY SLOWLY TODAY...AND THIS WILL CREATE THE ADDITIONAL THREAT OF LOCALIZED HEAVY RAINFALL AND FLASH FLOODING. STAY TUNED TO NOAA WEATHER RADIO OR YOUR FAVORITE MEDIA OUTLET FOR THE LATEST UPDATES CONCERNING THIS POTENTIAL SEVERE WEATHER SITUATION. LANE
The office that day
Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 22, 1:29 PM EDT | Flash Flood Warning | GSP | Jackson | 3 hr |
| May 22, 3:27 PM EDT | Severe Thunderstorm Warning | GSP | Burke, McDowell | 63 min |
| May 22, 3:43 PM EDT | Flash Flood Warning | GSP | Caldwell | 3 hr |
| May 22, 5:14 PM EDT | Severe Thunderstorm Warning | GSP | Alexander | 46 min |
| May 22, 5:18 PM EDT | Severe Thunderstorm Warning | GSP | Gaston, Lincoln | 57 min |
| May 22, 7:08 PM EDT | Severe Thunderstorm Warning | GSP | Cleveland | 52 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.