Alert archive / South Carolina / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 27, NWS Greenville-Spartanburg, SC

May 4, 2022Spartanburg County, Union County, South Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 4, 2022, 4:34 PM EDT for Spartanburg County, Union County, South Carolina. It was in force for 41 min. 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 4, 2022, 4:34 PM EDT (20:34 UTC)
Expired: May 4, 2022, 5:15 PM EDT
In force: 41 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Spartanburg County, SC, Union County, SC

The radar

The Greer radar (KGSP), 39 km from the middle of the area, began a volume at 20:36 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 12:00Z, 8.6 hours before the alert went out and 295 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: 898 J/kg
Mixed-layer CIN: -49 J/kg
Mixed-layer LCL: 769 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 93 m²/s²
0-3 km storm-relative helicity: 91 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.5

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at May 4, 2:16 PM EDT, 2 hours 18 minutes earlier.

Area forecast discussion, May 4, 2:16 PM EDT, 2 hours 18 minutes before

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Hazardous weather outlook, May 4, 5:24 AM EDT, 11 hours 10 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
524 AM EDT Wed May 4 2022

GAZ010-017-NCZ033-048>053-058-059-062>065-501-503-505-507-509-
SCZ101>103-050930-
Rabun-Habersham-Avery-Madison-Yancey-Mitchell-Swain-Haywood-Buncombe-
Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Caldwell Mountains-Burke Mountains-McDowell Mountains-
Rutherford Mountains-Polk Mountains-Oconee Mountains-
Pickens Mountains-Greenville Mountains-
524 AM EDT Wed May 4 2022

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

.DAY ONE...Today and tonight.

Isolated thunderstorms will be possible across the Carolina and
northeast Georgia mountains, mainly this morning. The main threats
will be from occasional cloud to ground lightning and brief
downpours.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-506-508-
510-SCZ008>014-019-104>109-050930-
Stephens-Franklin-Hart-Elbert-Alexander-Iredell-Davie-Catawba-Rowan-
Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-Union NC-
Greater Caldwell-Greater Burke-Eastern McDowell-Greater Rutherford-
Eastern Polk-Cherokee-York-Anderson-Abbeville-Laurens-Union SC-
Chester-Greenwood-Greater Oconee-Greater Pickens-Central Greenville-
Southern Greenville-Northern Spartanburg-Southern Spartanburg-
524 AM EDT Wed May 4 2022

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

.DAY ONE...Today and tonight.

Scattered thunderstorms are expected to develop ahead of a crossing
cold front, mainly this afternoon. Some of these storms could become
strong to severe and produce brief damaging winds and large hail.
Frequent cloud to ground lightning and brief downpours will also be
possible.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

Lane

In the hours before

Special weather statement, May 4, 3:18 PM EDT, 1 hour 16 minutes before

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Local storm report, May 4, 4:27 PM EDT, 7 minutes before

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Special weather statement, May 4, 4:27 PM EDT, 7 minutes before

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Local storm report, May 4, 4:29 PM EDT, 5 minutes before

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Special weather statement, May 4, 4:29 PM EDT, 5 minutes before

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Local storm report, May 4, 4:30 PM EDT, 4 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 3, 11:16 PM EDT	Special Weather Statement	GSP	Graham	29 min
May 4, 12:28 AM EDT	Special Weather Statement	GSP	Macon	47 min
May 4, 12:45 PM EDT	Special Weather Statement	GSP	Madison	15 min
May 4, 2:06 PM EDT	Special Weather Statement	GSP	Iredell	24 min
May 4, 2:17 PM EDT	Special Weather Statement	GSP	Iredell	28 min
May 4, 2:30 PM EDT	Special Weather Statement	GSP	Iredell	30 min
May 4, 2:46 PM EDT	Special Weather Statement	GSP	Iredell	29 min
May 4, 2:58 PM EDT	Special Weather Statement	GSP	Lincoln	32 min
May 4, 3:14 PM EDT	Severe Thunderstorm Warning	GSP	Catawba, Lincoln	31 min
May 4, 3:18 PM EDT	Special Weather Statement	GSP	Rowan	27 min
May 4, 3:25 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Iredell, Rowan	50 min
May 4, 3:43 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Lincoln	47 min
May 4, 4:10 PM EDT	Areal Flood Advisory	GSP	Lincoln	2 hr
May 4, 4:11 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Iredell, Mecklenburg, Rowan	49 min
May 4, 4:41 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston	49 min
May 4, 4:43 PM EDT	Special Weather Statement	GSP	Mecklenburg	32 min
May 4, 5:06 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Mecklenburg	39 min
May 4, 5:25 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Mecklenburg	25 min
May 4, 5:43 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg, Union	33 min
May 4, 6:03 PM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg, Union	44 min
May 4, 4:27 PM EDT	Special Weather Statement	GSP	Cherokee	33 min
May 4, 4:29 PM EDT	Special Weather Statement	GSP	Union	31 min
May 4, 4:39 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, York	51 min
May 4, 5:00 PM EDT	Severe Thunderstorm Warning	GSP	Chester, York	35 min
May 4, 5:15 PM EDT	Special Weather Statement	GSP	Union	30 min
May 4, 1:52 PM EDT	Special Weather Statement	GSP	Franklin, Hart	38 min
May 4, 2:05 PM EDT	Special Weather Statement	GSP	Stephens	25 min
May 4, 2:42 PM EDT	Special Weather Statement	GSP	Franklin	33 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2022 Every severe thunderstorm warning in 2022

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.