Alert archive / South Carolina / Flash Flood Warnings in 2025

Flash Flood Warning 3, NWS Greenville-Spartanburg, SC

May 13, 2025Laurens County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at May 13, 2025, 12:51 AM EDT for Laurens County, South Carolina. It was in force for 4 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: May 13, 2025, 12:51 AM EDT (04:51 UTC)
Expired: May 13, 2025, 4:39 AM EDT
In force: 4 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Flood severity: None

County Laurens County, SC

The radar

The Greer radar (KGSP), 49 km from the middle of the area, began a volume at 04:53 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

Charleston AFB, SC (KCHS), launched 00:00Z, 4.9 hours before the alert went out and 256 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: 10 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 713 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: -49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.2

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 May 12, 10:04 PM EDT, 2 hours 47 minutes earlier.

Area forecast discussion, May 12, 10:04 PM EDT, 2 hours 47 minutes before

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Hazardous weather outlook, May 12, 10:59 PM EDT, 1 hour 52 minutes before

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In the hours before

Special weather statement, May 12, 8:03 PM EDT, 4 hours 48 minutes before

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Special weather statement, May 12, 8:48 PM EDT, 4 hours 3 minutes before

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Local storm report, May 12, 9:22 PM EDT, 3 hours 29 minutes before

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Special weather statement, May 12, 9:34 PM EDT, 3 hours 17 minutes before

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Special weather statement, May 12, 10:45 PM EDT, 2 hours 6 minutes before

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Special weather statement, May 12, 11:07 PM EDT, 1 hour 44 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
May 12, 8:38 PM EDT	Areal Flood Advisory	GSP	McDowell	6 hr
May 12, 9:12 PM EDT	Areal Flood Advisory	GSP	Buncombe, Henderson, Rutherford	6 hr
May 12, 10:32 PM EDT	Areal Flood Advisory	GSP	Avery, Mitchell	6 hr
May 12, 11:58 PM EDT	Areal Flood Advisory	GSP	Caldwell	5 hr
May 13, 12:24 AM EDT	Areal Flood Advisory	GSP	Macon	5 hr
May 13, 12:25 PM EDT	Special Weather Statement	GSP	Cabarrus	35 min
May 13, 12:44 PM EDT	Special Weather Statement	GSP	Union	31 min
May 13, 12:44 PM EDT	Special Weather Statement	GSP	Cabarrus	31 min
May 13, 12:55 PM EDT	Special Weather Statement	GSP	Mecklenburg	35 min
May 13, 1:10 PM EDT	Special Weather Statement	GSP	Union	35 min
May 13, 1:19 PM EDT	Special Weather Statement	GSP	Mecklenburg	26 min
May 13, 1:20 PM EDT	Special Weather Statement	GSP	Mecklenburg	25 min
May 13, 1:23 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus	23 min
May 13, 1:37 PM EDT	Areal Flood Advisory	GSP	Cabarrus	3 hr
May 13, 3:13 PM EDT	Special Weather Statement	GSP	Madison	32 min
May 12, 8:00 PM EDT	Flash Flood Warning	GSP	Abbeville	5 hr
May 12, 8:03 PM EDT	Special Weather Statement	GSP	Abbeville	42 min
May 12, 8:48 PM EDT	Special Weather Statement	GSP	Abbeville	57 min
May 12, 9:34 PM EDT	Special Weather Statement	GSP	Greenwood, Laurens	41 min
May 12, 10:07 PM EDT	Areal Flood Advisory	GSP	Abbeville, Greenwood	7 hr
May 12, 10:45 PM EDT	Special Weather Statement	GSP	Spartanburg	30 min
May 12, 10:58 PM EDT	Flash Flood Warning Considerable damage threat	GSP	Abbeville, Greenwood	5 hr
May 12, 11:07 PM EDT	Special Weather Statement	GSP	Union	38 min
May 12, 11:33 PM EDT	Areal Flood Advisory	GSP	Laurens	2 hr
May 13, 4:36 AM EDT	Areal Flood Advisory	GSP	Laurens	5 hr
May 13, 9:51 AM EDT	Special Weather Statement	GSP	Cherokee	24 min
May 13, 6:23 PM EDT	Special Weather Statement	GSP	Anderson	37 min

Nearby

Flash Flood Warnings in South Carolina, 2025 Every flash flood warning in 2025

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.