Alert archive / North Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 16, 2021Gaston County, Mecklenburg County, North Carolina; Cherokee County, York County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 16, 2021, 3:46 PM EDT for Gaston County, Mecklenburg County, North Carolina; Cherokee County, York County, South Carolina. It was in force for 59 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: Aug 16, 2021, 3:46 PM EDT (19:46 UTC)
Expired: Aug 16, 2021, 4:45 PM EDT
In force: 59 min
Issued by: NWS Greenville-Spartanburg, SC

Counties Gaston County, NC, Mecklenburg County, NC, Cherokee County, SC, York County, SC

The radar

The Greer radar (KGSP), 123 km from the middle of the area, began a volume at 19:46 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, 7.8 hours before the alert went out and 136 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: 635 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 503 m above ground
0-6 km bulk shear: 13 kt
0-1 km storm-relative helicity: 41 m²/s²
0-3 km storm-relative helicity: 49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Aug 16, 2:53 PM EDT, 53 minutes earlier.

Area forecast discussion, Aug 16, 2:53 PM EDT, 53 minutes before

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Hazardous weather outlook, Aug 16, 2:43 PM EDT, 1 hour 3 minutes before

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In the hours before

Special weather statement, Aug 16, 9:49 AM EDT, 5 hours 57 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
949 AM EDT Mon Aug 16 2021

NCZ056-069-161430-
Lincoln NC-Catawba NC-
949 AM EDT Mon Aug 16 2021

...STORMS WITH TORRENTIAL RAINFALL WILL IMPACT CENTRAL CATAWBA AND
CENTRAL LINCOLN COUNTIES UNTIL 1030 AM EDT...

At 948 AM EDT, Doppler radar was tracking very heavy showers with
torrential rainfall from Lincolnton to Conover, moving north at 20
mph.

Locations to be impacted include...
Newton, Lincolnton, Maiden, Boger City, Crouse and Startown.

Very heavy rainfall rates up to 2 inches per hour will be possible in
these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads.

&&

LAT...LON 3565 8114 3541 8120 3541 8133 3542 8139
      3569 8128
TIME...MOT...LOC 1348Z 193DEG 17KT 3542 8130

CSH

Local storm report, Aug 16, 11:07 AM EDT, 4 hours 39 minutes before

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Local storm report, Aug 16, 11:47 AM EDT, 3 hours 59 minutes before

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Local storm report, Aug 16, 12:10 PM EDT, 3 hours 36 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
1210 PM EDT MON AUG 16 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1145 AM     FLASH FLOOD      3 NW LINCOLNTON         35.51N 81.28W
08/16/2021                   LINCOLN            NC   FIRE DEPT/RESCUE

            RAIN GAGES REPORT NEARLY 6 INCHES OF RAIN RESULTING IN
            RUNOFF AND WATER COVERED AREAS ALONG RIVER ROAD.

&&

Local storm report, Aug 16, 1:06 PM EDT, 2 hours 40 minutes before

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Special weather statement, Aug 16, 3:46 PM 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
Aug 15, 8:06 PM EDT	Special Weather Statement	GSP	Cleveland	24 min
Aug 15, 8:07 PM EDT	Special Weather Statement	GSP	Transylvania	23 min
Aug 15, 8:09 PM EDT	Special Weather Statement	GSP	McDowell	36 min
Aug 15, 8:18 PM EDT	Special Weather Statement	GSP	Rutherford	27 min
Aug 15, 8:30 PM EDT	Special Weather Statement	GSP	Catawba, Lincoln	30 min
Aug 15, 8:53 PM EDT	Special Weather Statement	GSP	Transylvania	52 min
Aug 15, 9:05 PM EDT	Special Weather Statement	GSP	Catawba	25 min
Aug 15, 9:18 PM EDT	Special Weather Statement	GSP	McDowell	27 min
Aug 15, 9:45 PM EDT	Special Weather Statement	GSP	Avery	30 min
Aug 16, 2:52 AM EDT	Areal Flood Advisory	GSP	Buncombe, Haywood, Henderson, Jackson, Transylvania	3 hr
Aug 16, 3:02 AM EDT	Flash Flood Warning	GSP	Haywood, Jackson, Transylvania	5 hr
Aug 16, 4:39 AM EDT	Flash Flood Warning	GSP	Jackson, Transylvania	3 hr
Aug 16, 4:59 AM EDT	Flash Flood Warning	GSP	Henderson, Transylvania	3 hr
Aug 16, 7:43 AM EDT	Flash Flood Warning Considerable damage threat	GSP	Transylvania	4 hr
Aug 16, 8:51 AM EDT	Special Weather Statement	GSP	Catawba	39 min
Aug 16, 9:49 AM EDT	Special Weather Statement	GSP	Catawba, Lincoln	41 min
Aug 16, 10:24 AM EDT	Flash Flood Warning	GSP	Catawba, Lincoln	3 hr
Aug 16, 2:20 PM EDT	Flash Flood Watch	GSP	Avery, Buncombe, Burke, Caldwell, Graham, Haywood and 11 more	40 hr
Aug 16, 4:46 PM EDT	Special Weather Statement	GSP	Transylvania	59 min
Aug 16, 5:14 PM EDT	Special Weather Statement	GSP	Davie, Iredell	76 min
Aug 16, 6:53 PM EDT	Areal Flood Advisory	GSP	Jackson, Transylvania	3 hr
Aug 16, 8:33 AM EDT	Special Weather Statement	GSP	Oconee	42 min
Aug 16, 9:23 AM EDT	Special Weather Statement	GSP	Oconee	52 min
Aug 16, 10:12 AM EDT	Flash Flood Warning	GSP	Oconee	3 hr

Nearby

Special Weather Statements in North Carolina, 2021 Special Weather Statements in South Carolina, 2021 Every special weather statement in 2021

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.