Alert archive / North Carolina / Severe Thunderstorm Warnings in 2020

Severe Thunderstorm Warning 82, NWS Greenville-Spartanburg, SC

May 5, 2020Mecklenburg County, Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at May 5, 2020, 4:33 AM EDT for Mecklenburg County, Union County, North Carolina. It was in force for 27 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 5, 2020, 4:33 AM EDT (08:33 UTC)
Expired: May 5, 2020, 5:00 AM EDT
In force: 27 min
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Mecklenburg County, NC, Union County, NC

The radar

The Columbia radar (KCAE), 136 km from the middle of the area, began a volume at 08:32 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 00:00Z, 8.6 hours before the alert went out and 128 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3353 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 8 m²/s²
0-3 km storm-relative helicity: -10 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 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 5, 3:46 AM EDT, 47 minutes earlier.

Area forecast discussion, May 5, 3:46 AM EDT, 47 minutes before

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Hazardous weather outlook, May 4, 6:11 PM EDT, 10 hours 22 minutes before

Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
611 PM EDT Mon May 4 2020

GAZ010-017-018-026-028-029-NCZ048-051>053-058-059-062>065-507-509-
510-SCZ001>007-010>013-019-052215-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Madison-Swain-Haywood-
Buncombe-Graham-Northern Jackson-Macon-Southern Jackson-Transylvania-
Henderson-Rutherford Mountains-Polk Mountains-Eastern Polk-
Oconee Mountains-Pickens Mountains-Greenville Mountains-
Greater Oconee-Greater Pickens-Greater Greenville-Spartanburg-
Anderson-Abbeville-Laurens-Union SC-Greenwood-
611 PM EDT Mon May 4 2020

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

.DAY ONE...Tonight.

A line or area of strong to severe thunderstorms is expected to move
east across Tennessee this evening and reach western North Carolina
late in the evening. If the storms hold together, strong to severe
thunderstorms may move across the central and southern mountains of
North Carolina, northeast Georgia, and Upstate South Carolina through
the early morning hours. Strong and damaging wind gusts are the main
threat, but sporadic large hail or a brief tornado cannot be ruled
out. Lightning, gusty winds, and brief, heavy rainfall can be
expected with any storm. The storms would weaken as they move east
across the Upstate before dawn.

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

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ033-049-050-068>072-082-501-503-505-506-508-SCZ008-009-014-052215-
Avery-Yancey-Mitchell-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-
Union NC-Caldwell Mountains-Burke Mountains-McDowell Mountains-
Eastern McDowell-Greater Rutherford-Cherokee-York-Chester-
611 PM EDT Mon May 4 2020

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

.DAY ONE...Tonight.

Showers and a few thunderstorms will move into the area tonight.
Lightning, gusty winds, and brief, heavy rainfall can be expected
with any storm.

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

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

NCZ035>037-056-057-502-504-052215-
Alexander-Iredell-Davie-Catawba-Rowan-Greater Caldwell-Greater Burke-
611 PM EDT Mon May 4 2020

This Hazardous Weather Outlook is for piedmont North Carolina and
western North Carolina.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

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

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

None.

PM

In the hours before

Special weather statement, May 4, 11:14 PM EDT, 5 hours 19 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1114 PM EDT Mon May 4 2020

NCZ071-082-050345-
Union NC-Mecklenburg NC-
1114 PM EDT Mon May 4 2020

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN MECKLENBURG AND
NORTHWESTERN UNION COUNTIES UNTIL 1145 PM EDT...

At 1113 PM EDT, Doppler radar was tracking a strong thunderstorm 6
miles northeast of Indian Land, or near Weddington, moving east at 20
mph.

Locations to be impacted include...
Monroe, South Charlotte, Matthews, Indian Trail, Weddington,
Stallings, Pineville, Wesley Chapel, Lake Park and Hemby Bridge.

Wind gusts up to 40 mph and half inch hail will be possible in these
areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3497 8081 3509 8091 3520 8055 3497 8048
TIME...MOT...LOC 0313Z 259DEG 17KT 3505 8076

MOORE

Special weather statement, May 4, 11:28 PM EDT, 5 hours 5 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1128 PM EDT Mon May 4 2020

SCZ009-014-050400-
York SC-Chester SC-
1128 PM EDT Mon May 4 2020

...A STRONG THUNDERSTORM WILL IMPACT EASTERN CHESTER AND SOUTHEASTERN
YORK COUNTIES UNTIL MIDNIGHT EDT...

At 1128 PM EDT, Doppler radar was tracking a strong thunderstorm 9
miles south of Rock Hill, or 7 miles northwest of Richburg, moving
east at 25 mph.

Other storms were developing near Richburg in Chester County.

Locations to be impacted include...
Rock Hill, Lesslie, Great Falls, Fort Lawn, Richburg, Catawba,
Fishing Creek Reservoir and Edgemoor.

Wind gusts up to 40 mph, half inch hail and very heavy rainfall rates
up to 2 inches per hour will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3464 8090 3460 8089 3456 8087 3454 8088
      3455 8100 3469 8114 3480 8117 3489 8114
      3491 8088 3487 8088 3484 8087 3483 8090
      3482 8090 3479 8088 3475 8088 3470 8086
TIME...MOT...LOC 0328Z 269DEG 22KT 3481 8107

MOORE

Special weather statement, May 4, 11:43 PM EDT, 4 hours 50 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
1143 PM EDT Mon May 4 2020

NCZ082-050415-
Union NC-
1143 PM EDT Mon May 4 2020

...A STRONG THUNDERSTORM WILL IMPACT SOUTHEASTERN UNION COUNTY UNTIL
1215 AM EDT...

At 1143 PM EDT, Doppler radar was tracking a strong thunderstorm near
Monroe, moving east at 25 mph.

Locations to be impacted include...
Monroe, Unionville, Wingate, Marshville, Sturdivants, Indian Trail
and New Salem.

Wind gusts up to 40 mph and pea size hail will be possible in these
areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio and tv
stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3481 8032 3481 8036 3487 8049 3498 8062
      3508 8062 3514 8028
TIME...MOT...LOC 0343Z 274DEG 22KT 3502 8054

MOORE

Special weather statement, May 5, 1:03 AM EDT, 3 hours 30 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
103 AM EDT Tue May 5 2020

GAZ010-017-018-NCZ062-SCZ001-050530-
Rabun GA-Stephens GA-Habersham GA-Macon NC-Oconee Mountains SC-
103 AM EDT Tue May 5 2020

...STRONG THUNDERSTORMS WITH INTENSE LIGHTNING WILL IMPACT WESTERN
STEPHENS...HABERSHAM...RABUN...SOUTH CENTRAL MACON AND WEST CENTRAL
OCONEE COUNTIES UNTIL 130 AM EDT...

At 102 AM EDT, Doppler radar indicated strong thunderstorms with
intense lightning along a line extending from 3 miles northeast of
Hiawassee to 11 miles northwest of Clarkesville to 6 miles southeast
of Cleveland, and moving east at 45 mph.

Locations to be impacted include...
Clayton, Clarkesville, Toccoa, Cornelia, Demorest, Mount Airy,
Mountain City, Tiger, Dillard and Tallulah Falls.

In addition to intense lightning, wind gusts up to 50 mph and dime
size hail will be possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent lightning is occurring with these storms. If outdoors, try
to get indoors or into a hard topped vehicle. Otherwise, stay away
from open areas and isolated high objects such as trees. When
indoors, stay away from windows and doors and avoid using wired
electronic devices. Do not take a shower or bath. Try to unplug
unnecessary appliances before the storms approach.

These storms may intensify, so be certain to monitor local radio and
tv stations, as well as local cable tv outlets for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 3482 8365 3488 8366 3491 8363 3492 8360
      3494 8360 3495 8355 3499 8355 3500 8348
      3500 8352 3503 8353 3504 8336 3481 8330
      3450 8334 3449 8366 3450 8367 3454 8362
      3465 8366 3474 8362 3480 8368
TIME...MOT...LOC 0502Z 256DEG 39KT 3497 8371 3473 8366 3453 8369

Carroll

Special weather statement, May 5, 3:18 AM EDT, 1 hour 15 minutes before

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Special weather statement, May 5, 4:03 AM EDT, 30 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 4, 11:14 PM EDT	Special Weather Statement	GSP	Union	31 min
May 4, 11:43 PM EDT	Special Weather Statement	GSP	Union	32 min
May 5, 3:22 AM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston	38 min
May 5, 3:57 AM EDT	Severe Thunderstorm Warning	GSP	Mecklenburg, Union	48 min
May 5, 3:17 PM EDT	Special Weather Statement	GSP	Graham	28 min
May 5, 3:27 PM EDT	Severe Thunderstorm Warning	GSP	Graham, Macon, Swain	28 min
May 5, 3:52 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon, Transylvania	38 min
May 5, 3:53 PM EDT	Special Weather Statement	GSP	Transylvania	37 min
May 5, 4:01 PM EDT	Special Weather Statement	GSP	Jackson, Transylvania	29 min
May 5, 4:24 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Polk, Transylvania	51 min
May 5, 4:30 PM EDT	Severe Thunderstorm Warning	GSP	Transylvania	15 min
May 5, 4:49 PM EDT	Special Weather Statement	GSP	Buncombe	26 min
May 5, 4:52 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Polk, Rutherford	53 min
May 4, 8:06 PM EDT	Tornado Warning	GSP	Spartanburg	24 min
May 4, 8:24 PM EDT	Severe Thunderstorm Warning	GSP	Laurens, Spartanburg, Union	51 min
May 4, 8:56 PM EDT	Severe Thunderstorm Warning	GSP	York	25 min
May 4, 9:14 PM EDT	Severe Thunderstorm Warning	GSP	Chester, Union	16 min
May 4, 9:19 PM EDT	Special Weather Statement	GSP	Spartanburg	26 min
May 4, 9:32 PM EDT	Special Weather Statement	GSP	Chester	28 min
May 4, 9:35 PM EDT	Special Weather Statement	GSP	Union	25 min
May 4, 9:57 PM EDT	Special Weather Statement	GSP	Union	33 min
May 4, 10:56 PM EDT	Special Weather Statement	GSP	Chester	34 min
May 4, 11:28 PM EDT	Special Weather Statement	GSP	Chester	32 min
May 5, 1:24 AM EDT	Severe Thunderstorm Warning	GSP	Anderson, Oconee, Pickens	51 min
May 5, 2:00 AM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Greenville, Laurens, Oconee, Pickens	45 min
May 5, 2:40 AM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Anderson, Cherokee, Greenville, Greenwood, Laurens and 3 more	50 min
May 5, 3:18 AM EDT	Special Weather Statement	GSP	Anderson	27 min
May 5, 4:03 AM EDT	Special Weather Statement	GSP	Laurens	27 min
May 5, 4:05 PM EDT	Special Weather Statement	GSP	Pickens	25 min
May 5, 4:38 PM EDT	Special Weather Statement	GSP	Greenville, Pickens	37 min
May 5, 5:04 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Pickens, Spartanburg	41 min
May 5, 5:39 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Greenville, Spartanburg, Union	51 min
May 5, 5:44 PM EDT	Special Weather Statement	GSP	Greenville	31 min
May 5, 6:09 PM EDT	Special Weather Statement	GSP	Greenville, Pickens	36 min
May 5, 6:11 PM EDT	Severe Thunderstorm Warning	GSP	Chester, Union, York	49 min
May 5, 6:32 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	43 min
May 5, 6:35 PM EDT	Tornado Warning	GSP	Chester	25 min
May 5, 6:38 PM EDT	Tornado Warning	GSP	Chester	37 min
May 5, 6:43 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	47 min
May 5, 6:55 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Spartanburg, Union	50 min
May 5, 7:06 PM EDT	Special Weather Statement	GSP	Greenville	24 min
May 5, 7:15 PM EDT	Special Weather Statement	GSP	Union	30 min
May 5, 7:24 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	51 min
May 5, 7:28 PM EDT	Special Weather Statement	GSP	Anderson	32 min
May 5, 7:38 PM EDT	Special Weather Statement	GSP	York	37 min
May 5, 7:41 PM EDT	Special Weather Statement	GSP	Union	34 min
May 5, 7:42 PM EDT	Severe Thunderstorm Warning	GSP	Chester, York	37 min
May 5, 7:50 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Chester, Laurens, Spartanburg, Union, York	40 min
May 5, 1:03 AM EDT	Special Weather Statement	GSP	Habersham, Rabun	27 min
May 5, 3:31 PM EDT	Special Weather Statement	GSP	Rabun	29 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2020 Every severe thunderstorm warning in 2020

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.