Alert archive / North Carolina / Special Weather Statements in 2025

Special Weather Statement, NWS Greenville-Spartanburg, SC

March 31, 2025Swain County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Mar 31, 2025, 6:21 AM EDT for Swain County, North Carolina. It was in force for 24 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: Mar 31, 2025, 6:21 AM EDT (10:21 UTC)
Expired: Mar 31, 2025, 6:45 AM EDT
In force: 24 min
Issued by: NWS Greenville-Spartanburg, SC
Hail: 0.25 in
Wind: 40

County Swain County, NC

The radar

The Knoxville radar (KMRX), 76 km from the middle of the area, began a volume at 10:24 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

Nashville Metro, TN (KBNA), launched 00:00Z, 10.4 hours before the alert went out and 290 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: 823 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 740 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 208 m²/s²
0-3 km storm-relative helicity: 240 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 6.1

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement 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 special weather statement went out at Mar 31, 3:50 AM EDT, 2 hours 31 minutes earlier.

Area forecast discussion, Mar 31, 3:50 AM EDT, 2 hours 31 minutes before

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Hazardous weather outlook, Mar 31, 5:08 AM EDT, 1 hour 13 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
508 AM EDT Mon Mar 31 2025

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ008>014-019-101>109-010915-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Avery-Alexander-
Iredell-Davie-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-Catawba-
Rowan-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union-
Caldwell Mountains-Greater Caldwell-Burke Mountains-Greater Burke-
McDowell Mountains-Eastern McDowell-Rutherford Mountains-
Greater Rutherford-Polk Mountains-Eastern Polk-Cherokee-York-
Anderson-Abbeville-Laurens-Chester-Greenwood-Oconee Mountains-
Pickens Mountains-Greenville Mountains-Greater Oconee-
Greater Pickens-Central Greenville-Southern Greenville-
Northern Spartanburg-Southern Spartanburg-
508 AM EDT Mon Mar 31 2025

This Hazardous Weather Outlook is for northeast Georgia, Piedmont
North Carolina, western North Carolina and Upstate South Carolina.

.DAY ONE...Today and tonight.

A line of showers and thunderstorms associated with a cold front will
cross the area from west to east late this morning through the
afternoon. Some of these storms may be strong to severe with
damaging winds being the main threat. Also large hail and isolated
tornadoes will be possible, especially across the Piedmont.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotters are requested to forward any reports of large hail,
damaging winds, tornadoes, or flash flooding to our office.

In the hours before

Special weather statement, Mar 31, 6:19 AM EDT, 2 minutes before

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Special weather statement, Mar 31, 6:21 AM EDT, 0 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
Mar 31, 6:19 AM EDT	Special Weather Statement	GSP	Madison	26 min
Mar 31, 9:00 AM EDT	Special Weather Statement	GSP	Henderson	30 min
Mar 31, 9:30 AM EDT	Special Weather Statement	GSP	Polk	30 min
Mar 31, 12:38 PM EDT	Special Weather Statement	GSP	Graham	37 min
Mar 31, 1:27 PM EDT	Special Weather Statement	GSP	Macon	33 min
Mar 31, 1:45 PM EDT	Special Weather Statement	GSP	Haywood	30 min
Mar 31, 1:55 PM EDT	Special Weather Statement	GSP	Jackson	35 min
Mar 31, 2:15 PM EDT	Special Weather Statement	GSP	Buncombe, Madison, Transylvania, Yancey	30 min
Mar 31, 2:45 PM EDT	Special Weather Statement	GSP	Buncombe, Yancey	30 min
Mar 31, 3:26 PM EDT	Special Weather Statement	GSP	Rowan	34 min
Mar 31, 4:57 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg, Union	56 min
Mar 31, 8:32 AM EDT	Special Weather Statement	GSP	Pickens	28 min
Mar 31, 2:02 PM EDT	Special Weather Statement	GSP	Oconee	43 min
Mar 31, 2:11 PM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee, Pickens	64 min
Mar 31, 2:34 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson	56 min
Mar 31, 2:55 PM EDT	Severe Thunderstorm Warning Considerable damage threat	GSP	Anderson, Greenville, Laurens, Pickens, Spartanburg	65 min
Mar 31, 3:18 PM EDT	Severe Thunderstorm Warning Considerable damage threat	GSP	Abbeville, Anderson, Greenville, Greenwood, Laurens	42 min
Mar 31, 3:41 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Laurens, Spartanburg, Union	58 min
Mar 31, 4:23 PM EDT	Severe Thunderstorm Warning	GSP	Chester, York	52 min
Mar 31, 7:55 AM EDT	Special Weather Statement	GSP	Rabun	35 min

Nearby

Special Weather Statements in North Carolina, 2025 Every special weather statement 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.