Alert archive / North Carolina / Flash Flood Warnings in 2024

Flash Flood Warning 55, NWS Greenville-Spartanburg, SC

September 25, 20245 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 25, 2024, 8:46 PM EDT for 5 counties in North Carolina. It was in force for 6 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 25, 2024, 8:46 PM EDT (00:46 UTC)
Expired
Sep 26, 2024, 2:40 AM EDT
In force
6 hr
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon
Flood severity
None

Counties Avery County, NC, Burke County, NC, McDowell County, NC, Mitchell County, NC, Yancey County, NC

The radar

The Greer radar (KGSP), 113 km from the middle of the area, began a volume at 00:46 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.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.8 hours before the alert went out and 193 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 00:00Z on 2024-09-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 846 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2024-09-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 95 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
846 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
688 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
95 m²/s²
0-3 km storm-relative helicity
137 m²/s²
Significant tornado parameter
0.4
Supercell composite
4.6

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood 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 flash flood warning went out at Sep 25, 8:25 PM EDT, 21 minutes earlier.

Area forecast discussion, Sep 25, 8:25 PM EDT, 21 minutes before
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Hazardous weather outlook, Sep 25, 6:10 PM EDT, 2 hours 36 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
610 PM EDT Wed Sep 25 2024

GAZ010-017-018-026-028-029-NCZ033-048>053-056-058-059-062>065-068-
069-501>510-SCZ008-010>013-019-101>109-262215-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Madison-Yancey-
Mitchell-Swain-Haywood-Buncombe-Catawba-Graham-Northern Jackson-
Macon-Southern Jackson-Transylvania-Henderson-Cleveland-Lincoln-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Cherokee-Anderson-
Abbeville-Laurens-Union SC-Greenwood-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Central Greenville-Southern Greenville-
Northern Spartanburg-Southern Spartanburg-
610 PM EDT Wed Sep 25 2024

...FLOOD WATCH IN EFFECT THROUGH FRIDAY AFTERNOON...
...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for northeast Georgia, piedmont
North Carolina, western North Carolina and upstate South Carolina.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.
   Tropical Storm Warning.

A tropical system is expected to strengthen over the Gulf of Mexico
on Thursday as it tracks northward. This system will impact the
western Carolinas and northeast Georgia Thursday and Friday,
bringing gusty winds, heavy rainfall, and flooding to the area.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ070-071-082-SCZ009-014-262215-
Gaston-Mecklenburg-Union NC-York-Chester-
610 PM EDT Wed Sep 25 2024

...TROPICAL STORM WARNING IN EFFECT...

This Hazardous Weather Outlook is for piedmont North Carolina and
upstate South Carolina.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Tropical Storm Warning.

A tropical system is expected to strengthen over the Gulf of Mexico
on Thursday as it tracks northward. This system will impact the
western Carolinas and northeast Georgia Thursday and Friday,
bringing gusty winds, heavy rainfall, and flooding to the area.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ036-037-057-072-262215-
Iredell-Davie-Rowan-Cabarrus-
610 PM EDT Wed Sep 25 2024

This Hazardous Weather Outlook is for the northwest Piedmont of North
Carolina.

.DAY ONE...Tonight.

Another round of scattered thunderstorms is expected this evening and
into the overnight hours. Some of these storms could become strong
to severe and produce damaging wind gusts and hail. Heavy rainfall
can occur with any storm.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A tropical system is expected to strengthen over the Gulf of Mexico
on Thursday as it tracks northward. This system will impact the
western Carolinas and northeast Georgia Thursday and Friday,
bringing gusty winds, heavy rainfall, and flooding to the area.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ035-262215-
Alexander-
610 PM EDT Wed Sep 25 2024

...FLOOD WATCH IN EFFECT THROUGH FRIDAY AFTERNOON...

This Hazardous Weather Outlook is for piedmont North Carolina.

.DAY ONE...Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Flood Watch.

A tropical system is expected to strengthen over the Gulf of Mexico
on Thursday as it tracks northward. This system will impact the
western Carolinas and northeast Georgia Thursday and Friday,
bringing gusty winds, heavy rainfall, and flooding to the area.

.SPOTTER INFORMATION STATEMENT...

None.

PM

In the hours before

Special weather statement, Sep 25, 4:55 PM EDT, 3 hours 51 minutes before
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Special weather statement, Sep 25, 5:01 PM EDT, 3 hours 45 minutes before
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Special weather statement, Sep 25, 6:23 PM EDT, 2 hours 23 minutes before
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Special weather statement, Sep 25, 6:35 PM EDT, 2 hours 11 minutes before
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Local storm report, Sep 25, 7:08 PM EDT, 1 hour 38 minutes before
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Local storm report, Sep 25, 8:15 PM EDT, 31 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Sep 25, 8:07 PM EDTFlash Flood WarningGSPBuncombe, Henderson, McDowell, Mitchell, Polk, Rutherford and 1 more11 hr
Sep 25, 8:56 PM EDTSpecial Weather StatementGSPDavie34 min
Sep 25, 9:24 PM EDTAreal Flood AdvisoryGSPTransylvania8 hr
Sep 25, 9:49 PM EDTAreal Flood AdvisoryGSPHenderson8 hr
Sep 25, 9:50 PM EDTSpecial Weather StatementGSPAvery25 min
Sep 25, 11:22 PM EDTAreal Flood AdvisoryGSPBurke, Caldwell, McDowell10 hr
Sep 26, 12:03 AM EDTFlash Flood Warning Considerable damage threatGSPRutherford7 hr
Sep 26, 2:36 AM EDTAreal Flood AdvisoryGSPAvery, Burke, McDowell, Mitchell, Yancey8 hr
Sep 26, 2:53 AM EDTAreal Flood AdvisoryGSPAlexander, Caldwell, Catawba6 hr
Sep 26, 4:31 AM EDTFlash Flood WarningGSPMcDowell6 hr
Sep 26, 5:06 AM EDTFlash Flood Warning Considerable damage threatGSPHenderson22 hr
Sep 26, 5:16 AM EDTFlash Flood WarningGSPTransylvania11 hr
Sep 26, 7:01 AM EDTAreal Flood WarningGSPMcDowell8 hr
Sep 26, 7:40 AM EDTAreal Flood AdvisoryGSPPolk3 hr
Sep 26, 7:45 AM EDTAreal Flood AdvisoryGSPRutherford3 hr
Sep 26, 9:00 AM EDTAreal Flood AdvisoryGSPHaywood4 hr
Sep 26, 9:03 AM EDTAreal Flood AdvisoryGSPJackson4 hr
Sep 26, 9:11 AM EDTAreal Flood AdvisoryGSPAlexander, Catawba, Iredell, Lincoln2 hr
Sep 26, 9:12 AM EDTSpecial Weather StatementGSPCatawba33 min
Sep 26, 9:17 AM EDTAreal Flood AdvisoryGSPMacon7 hr
Sep 26, 9:20 AM EDTTornado WarningGSPAlexander, Catawba, Iredell25 min
Sep 26, 9:52 AM EDTTornado WarningGSPGaston, Mecklenburg23 min
Sep 26, 11:15 AM EDTLake Wind AdvisoryGSPAlexander, Cabarrus, Davie, Iredell, Rowan16 min
Sep 26, 11:32 AM EDTWind AdvisoryGSPAlexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more40 hr
Sep 26, 12:48 PM EDTAreal Flood AdvisoryGSPGaston, Lincoln3 hr
Sep 26, 1:02 PM EDTFlash Flood WarningGSPAlexander4 hr
Sep 26, 5:07 PM EDTAreal Flood AdvisoryGSPAlexander, Catawba, Iredell19 hr
Sep 26, 5:54 PM EDTFlash Flood Warning EmergencyConsiderable damage threatGSPGaston, Mecklenburg3 days
Sep 26, 6:29 PM EDTFlash Flood Warning Considerable damage threatGSPRutherford9 hr
Sep 26, 7:18 PM EDTAreal Flood AdvisoryGSPBurke, McDowell12 hr
Sep 26, 7:36 PM EDTAreal Flood AdvisoryGSPBurke, Caldwell18 hr
Sep 26, 7:58 PM EDTFlash Flood WarningGSPJackson, Macon, Polk, Transylvania7 hr
Sep 26, 3:02 AM EDTAreal Flood AdvisoryGSPAnderson, Greenville, Pickens6 hr
Sep 26, 4:41 AM EDTAreal Flood AdvisoryGSPGreenville, Pickens8 hr
Sep 26, 4:49 AM EDTAreal Flood AdvisoryGSPOconee, Pickens9 hr
Sep 26, 5:02 AM EDTFlash Flood WarningGSPGreenville, Pickens9 hr
Sep 26, 6:25 AM EDTFlash Flood WarningGSPGreenville, Pickens9 hr
Sep 26, 8:30 AM EDTAreal Flood AdvisoryGSPAnderson4 hr
Sep 26, 8:39 AM EDTSpecial Weather StatementGSPYork36 min
Sep 26, 10:40 AM EDTAreal Flood AdvisoryGSPSpartanburg7 hr
Sep 26, 11:12 AM EDTAreal Flood AdvisoryGSPLaurens4 hr
Sep 26, 11:55 AM EDTFlash Flood WarningGSPChester, York9 hr
Sep 26, 1:41 PM EDTFlash Flood Warning Considerable damage threatGSPGreenwood9 hr
Sep 26, 2:43 PM EDTFlash Flood Warning Considerable damage threatGSPLaurens8 hr
Sep 26, 7:21 PM EDTFlash Flood WarningGSPAnderson, Greenville, Laurens, Spartanburg19 hr

Nearby

Flash Flood Warnings in North Carolina, 2024Every flash flood warning in 2024

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.