Alert archive / South Carolina / Flash Flood Warnings in 2024

Flash Flood Warning 77, NWS Greenville-Spartanburg, SC

September 27, 2024Greenville County, Oconee County, Pickens County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 27, 2024, 12:28 AM EDT for Greenville County, Oconee County, Pickens County, South Carolina. It was in force for 3 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 27, 2024, 12:28 AM EDT (04:28 UTC)
Expired: Sep 27, 2024, 3:55 AM EDT
In force: 3 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Flood severity: None

Counties Greenville County, SC, Oconee County, SC, Pickens County, SC

The radar

The Greer radar (KGSP), 46 km from the middle of the area, began a volume at 04:28 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 4.5 hours before the alert went out and 232 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: 47 J/kg
Mixed-layer CIN: -40 J/kg
Mixed-layer LCL: 612 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 121 m²/s²
0-3 km storm-relative helicity: 168 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 26, 11:15 PM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Sep 26, 11:15 PM EDT, 1 hour 13 minutes before

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Hazardous weather outlook, Sep 26, 10:34 PM EDT, 1 hour 54 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
1034 PM EDT Thu Sep 26 2024

GAZ010-017-018-026-028-029-NCZ033-048>053-056-058-059-062>065-068-
069-501>510-SCZ008-010-011-101>109-280245-
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-Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Central Greenville-
Southern Greenville-Northern Spartanburg-Southern Spartanburg-
1034 PM EDT Thu Sep 26 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...Friday through Wednesday.

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.

Helene will track quickly northward overnight and will impact the
western Carolinas and northeast Georgia Friday, bringing gusty
winds, heavy rainfall, and flooding to the area.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ070-071-082-SCZ009-012>014-019-280245-
Gaston-Mecklenburg-Union NC-York-Laurens-Union SC-Chester-Greenwood-
1034 PM EDT Thu Sep 26 2024

...FLOOD WATCH IN EFFECT THROUGH FRIDAY AFTERNOON...
...TORNADO WATCH 687 IN EFFECT UNTIL 8 AM EDT FRIDAY...
...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.

   Flood Watch.
   Tornado Watch.
   Tropical Storm Warning.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Flood Watch.
   Tornado Watch.
   Tropical Storm Warning.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ035>037-057-280245-
Alexander-Iredell-Davie-Rowan-
1034 PM EDT Thu Sep 26 2024

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT FRIDAY...
...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.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Flood Watch.
   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ072-280245-
Cabarrus-
1034 PM EDT Thu Sep 26 2024

...WIND ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT FRIDAY...
...FLOOD WATCH IN EFFECT THROUGH FRIDAY AFTERNOON...
...TORNADO WATCH 687 IN EFFECT UNTIL 8 AM EDT FRIDAY...

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.
   Tornado Watch.
   Wind Advisory.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

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

   Flood Watch.
   Tornado Watch.
   Wind Advisory.

.SPOTTER INFORMATION STATEMENT...

None.

PM

In the hours before

Local storm report, Sep 26, 10:18 PM EDT, 2 hours 10 minutes before

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Local storm report, Sep 26, 11:06 PM EDT, 1 hour 22 minutes before

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Local storm report, Sep 26, 11:37 PM EDT, 51 minutes before

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Local storm report, Sep 26, 11:52 PM EDT, 36 minutes before

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Local storm report, Sep 26, 11:56 PM EDT, 32 minutes before

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Local storm report, Sep 27, 12:23 AM EDT, 5 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 8:46 PM EDT	Flash Flood Warning Considerable damage threat	GSP	Buncombe, Burke, McDowell, Rutherford	9 hr
Sep 26, 9:02 PM EDT	Flash Flood Warning	GSP	Buncombe, Haywood, Jackson, Transylvania	6 hr
Sep 26, 9:06 PM EDT	Flash Flood Warning	GSP	Avery, Caldwell, McDowell, Mitchell, Yancey	7 hr
Sep 26, 9:28 PM EDT	Areal Flood Advisory	GSP	Cabarrus, Mecklenburg	7 hr
Sep 26, 10:24 PM EDT	Flash Flood Warning	GSP	Iredell	6 hr
Sep 26, 11:12 PM EDT	Flash Flood Warning	GSP	Alexander	5 hr
Sep 27, 12:18 AM EDT	Flash Flood Warning	GSP	Burke	4 hr
Sep 27, 12:48 AM EDT	Flash Flood Warning	GSP	Jackson, Macon, Swain	3 hr
Sep 27, 3:11 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Jackson, Macon	11 hr
Sep 27, 3:16 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Buncombe, Haywood	5 hr
Sep 27, 3:18 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Henderson, Polk, Transylvania	5 hr
Sep 27, 3:39 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Graham, Swain	10 hr
Sep 27, 3:45 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Rutherford	6 hr
Sep 27, 3:53 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Avery, Madison, Mitchell, Yancey	7 hr
Sep 27, 4:01 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Alexander, Caldwell	5 hr
Sep 27, 4:09 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Haywood	11 hr
Sep 27, 4:14 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Burke, McDowell	6 hr
Sep 27, 4:35 AM EDT	Flash Flood Warning	GSP	Iredell	9 hr
Sep 27, 5:30 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Buncombe	8 hr
Sep 27, 5:46 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Avery, Mitchell	9 hr
Sep 27, 5:57 AM EDT	Flash Flood Warning	GSP	Cabarrus, Mecklenburg, Union	8 hr
Sep 27, 6:07 AM EDT	Flash Flood Warning	GSP	Catawba, Cleveland, Gaston, Lincoln, Rutherford	8 hr
Sep 27, 6:29 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Henderson, Polk, Rutherford	8 hr
Sep 27, 6:37 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Alexander, Burke, Caldwell, McDowell	13 hr
Sep 27, 6:52 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Burke, McDowell	13 hr
Sep 27, 7:24 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Jackson, Transylvania	8 hr
Sep 27, 7:57 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Buncombe	6 hr
Sep 27, 8:50 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Yancey	8 hr
Sep 27, 9:02 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Madison	8 hr
Sep 27, 9:35 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Rutherford	15 hr
Sep 27, 12:05 PM EDT	Flash Flood Warning Considerable damage threat	GSP	Alexander, Catawba	104 min
Sep 27, 1:14 PM EDT	Flash Flood Warning Considerable damage threat	GSP	Burke, Caldwell	6 hr
Sep 27, 1:24 PM EDT	Areal Flood Advisory	GSP	Iredell	3 hr
Sep 27, 1:37 PM EDT	Areal Flood Warning	GSP	Buncombe	17 hr
Sep 27, 1:47 PM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Alexander, Catawba, Iredell	48 hr
Sep 27, 1:52 PM EDT	Areal Flood Warning	GSP	Graham, Swain	6 hr
Sep 27, 2:36 PM EDT	Areal Flood Warning	GSP	Avery, Mitchell	17 hr
Sep 27, 2:45 PM EDT	Areal Flood Warning	GSP	Burke, Henderson, Polk, Rutherford	19 hr
Sep 27, 2:54 PM EDT	Areal Flood Warning	GSP	Haywood	6 hr
Sep 27, 3:08 PM EDT	Areal Flood Warning	GSP	Jackson, Transylvania	5 hr
Sep 27, 4:33 PM EDT	Areal Flood Warning	GSP	Cabarrus	27 hr
Sep 27, 4:35 PM EDT	Areal Flood Warning	GSP	Yancey	15 hr
Sep 27, 4:45 PM EDT	Areal Flood Warning	GSP	Madison	13 hr
Sep 27, 6:09 PM EDT	Areal Flood Advisory	GSP	Macon, Swain	12 hr
Sep 27, 7:23 PM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Burke, Caldwell, McDowell	42 hr
Sep 26, 11:40 PM EDT	Flash Flood Warning	GSP	Abbeville, Greenwood, Laurens	14 hr
Sep 27, 12:38 AM EDT	Flash Flood Warning	GSP	Oconee	4 hr
Sep 27, 1:05 AM EDT	Areal Flood Advisory	GSP	Cherokee, York	6 hr
Sep 27, 1:26 AM EDT	Areal Flood Advisory	GSP	York	6 hr
Sep 27, 1:57 AM EDT	Flash Flood Warning	GSP	Spartanburg	2 hr
Sep 27, 2:57 AM EDT	Flash Flood Warning	GSP	Chester, Union	11 hr
Sep 27, 3:02 AM EDT	Flash Flood Warning	GSP	Cherokee, York	13 hr
Sep 27, 3:39 AM EDT	Flash Flood Warning EmergencyConsiderable damage threat	GSP	Oconee, Pickens	13 hr
Sep 27, 3:45 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Greenville, Spartanburg	6 hr
Sep 27, 7:47 AM EDT	Flash Flood Warning EmergencyCatastrophic damage threat	GSP	Greenville, Spartanburg	8 hr
Sep 27, 1:46 PM EDT	Areal Flood Warning	GSP	Abbeville, Greenwood, Laurens	19 hr
Sep 27, 3:19 PM EDT	Areal Flood Warning	GSP	Greenville, Spartanburg	15 hr
Sep 27, 4:15 PM EDT	Areal Flood Warning	GSP	Oconee, Pickens	19 hr
Sep 27, 4:45 PM EDT	Areal Flood Warning	GSP	York	21 hr
Sep 27, 3:16 AM EDT	Flash Flood Warning	GSP	Elbert, Franklin, Hart, Stephens	11 hr
Sep 27, 4:08 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Habersham, Rabun	12 hr
Sep 27, 3:56 PM EDT	Areal Flood Warning	GSP	Habersham, Rabun	12 hr
Sep 27, 6:19 PM EDT	Areal Flood Advisory	GSP	Elbert	24 hr

Nearby

Flash Flood Warnings in South Carolina, 2024 Every 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.