Alert archive / North Carolina / Flash Flood Warnings in 2024

Flash Flood Warning 112, NWS Greenville-Spartanburg, SC

September 27, 2024Alexander County, Catawba County, Iredell County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Sep 27, 2024, 1:47 PM EDT for Alexander County, Catawba County, Iredell County, North Carolina. It was in force for 48 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, 1:47 PM EDT (17:47 UTC)
Expired: Sep 29, 2024, 1:46 PM EDT
In force: 48 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Emergency: Flash flood emergency
Damage threat: Catastrophic
Flood severity: None

Counties Alexander County, NC, Catawba County, NC, Iredell County, NC

The radar

The Greer radar (KGSP), 144 km from the middle of the area, began a volume at 17:48 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 12:00Z, 5.8 hours before the alert went out and 111 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: 117 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 591 m above ground
0-6 km bulk shear: 69 kt
0-1 km storm-relative helicity: 311 m²/s²
0-3 km storm-relative helicity: 433 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 1.3

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 27, 11:29 AM EDT, 2 hours 18 minutes earlier.

Area forecast discussion, Sep 27, 11:29 AM EDT, 2 hours 18 minutes before

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Hazardous weather outlook, Sep 27, 11:51 AM EDT, 1 hour 56 minutes before

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In the hours before

Local storm report, Sep 27, 10:11 AM EDT, 3 hours 36 minutes before

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Local storm report, Sep 27, 10:17 AM EDT, 3 hours 30 minutes before

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Local storm report, Sep 27, 10:45 AM EDT, 3 hours 2 minutes before

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Local storm report, Sep 27, 10:53 AM EDT, 2 hours 54 minutes before

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Local storm report, Sep 27, 11:39 AM EDT, 2 hours 8 minutes before

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Local storm report, Sep 27, 11:52 AM EDT, 1 hour 55 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, 1:52 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, 12:28 AM EDT	Flash Flood Warning	GSP	Greenville, Oconee, Pickens	3 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 North 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.