Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 7, 2018Rowan County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 7, 2018, 11:49 PM EDT for Rowan County, North Carolina. It was in force for 26 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 7, 2018, 11:49 PM EDT (03:49 UTC)
Expired: Aug 8, 2018, 12:15 AM EDT
In force: 26 min
Issued by: NWS Greenville-Spartanburg, SC

County Rowan County, NC

The radar

The Raleigh/Durham radar (KRAX), 162 km from the middle of the area, began a volume at 03:51 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, 3.8 hours before the alert went out and 69 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: 1000 J/kg
Mixed-layer CIN: -50 J/kg
Mixed-layer LCL: 1213 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 26 m²/s²
0-3 km storm-relative helicity: 27 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 7, 10:25 PM EDT, 1 hour 24 minutes earlier.

Area forecast discussion, Aug 7, 10:25 PM EDT, 1 hour 24 minutes before

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Hazardous weather outlook, Aug 7, 11:28 PM EDT, 21 minutes before

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In the hours before

Special weather statement, Aug 7, 9:13 PM EDT, 2 hours 36 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
913 PM EDT TUE AUG 7 2018

NCZ071-072-080145-
Mecklenburg NC-Cabarrus NC-
913 PM EDT TUE AUG 7 2018

...STRONG THUNDERSTORMS WITH INTENSE LIGHTNING WILL IMPACT CABARRUS
AND MECKLENBURG COUNTIES UNTIL 945 PM EDT...

At 913 PM EDT, Doppler radar indicated strong thunderstorms with
intense lightning along a line extending from 5 miles northeast of
Huntersville to 7 miles southwest of Downtown Concord to 8 miles
southwest of Uptown Charlotte, and moving east at 15 mph.

Locations to be impacted include...
Uptown Charlotte, Huntersville, Kannapolis, Downtown Concord, Central
Charlotte, Northeast Charlotte, Southwest Charlotte, East Charlotte,
Northwest Charlotte and West Concord.

In addition to intense lightning, wind gusts up to 50 mph, pea size
hail and very heavy rainfall rates up to 2 inches per hour will be
possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gusty winds can blow down trees that are dead, or that have weakened
root systems. Outdoor furniture and similar items can be tossed
around if not anchored. Seek shelter indoors.

Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.

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.

&&

LAT...LON 3528 8044 3509 8080 3510 8093 3511 8093
      3510 8095 3510 8103 3514 8105 3516 8100
      3525 8101 3534 8093 3551 8087 3550 8046
      3537 8039
TIME...MOT...LOC 0113Z 266DEG 15KT 3545 8076 3532 8068 3516 8097

RWH

Special weather statement, Aug 7, 9:42 PM EDT, 2 hours 7 minutes before

Special Weather Statement
National Weather Service Greenville-Spartanburg SC
942 PM EDT TUE AUG 7 2018

NCZ071-072-082-080215-
Union NC-Mecklenburg NC-Cabarrus NC-
942 PM EDT TUE AUG 7 2018

...A CLUSTER OF THUNDERSTORMS WITH INTENSE LIGHTNING WILL IMPACT
CABARRUS...SOUTHERN MECKLENBURG AND NORTHWESTERN UNION COUNTIES UNTIL
1015 PM EDT...

At 942 PM EDT, Doppler radar indicated the leading edge of a cluster
of thunderstorms with intense lightning along a line extending from
near Downtown Concord to 17 miles north of Monroe to 6 miles south of
Uptown Charlotte, and moving east at 15 mph.

Locations to be impacted include...
Uptown Charlotte, Kannapolis, Downtown Concord, Central Charlotte,
South Charlotte, Northeast Charlotte, Southwest Charlotte, East
Charlotte, West Concord and Matthews.

In addition to intense lightning, wind gusts up to 50 mph, pea size
hail and very heavy rainfall rates up to 2 inches per hour will be
possible in these areas.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gusty winds can blow down trees that are dead, or that have weakened
root systems. Outdoor furniture and similar items can be tossed
around if not anchored. Seek shelter indoors.

Torrential rainfall may flood areas with poor drainage, such as
ditches and underpasses. Avoid these areas and do not cross flooded
roads. Water levels of small streams may also rise rapidly. Seek
higher ground if threatened by flood waters.

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.

&&

LAT...LON 3519 8051 3518 8050 3518 8048 3516 8046
      3516 8044 3517 8042 3517 8039 3518 8037
      3517 8036 3504 8070 3509 8092 3511 8093
      3510 8095 3511 8101 3549 8065 3550 8046
      3550 8029
TIME...MOT...LOC 0142Z 277DEG 13KT 3542 8059 3523 8062 3514 8085

RWH

Local storm report, Aug 7, 10:07 PM EDT, 1 hour 42 minutes before

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Local storm report, Aug 7, 10:18 PM EDT, 1 hour 31 minutes before

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Local storm report, Aug 7, 10:33 PM EDT, 1 hour 16 minutes before

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Special weather statement, Aug 7, 11:49 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 7, 8:19 PM EDT	Special Weather Statement	GSP	Mecklenburg	26 min
Aug 7, 8:47 PM EDT	Special Weather Statement	GSP	Mecklenburg	28 min
Aug 7, 9:13 PM EDT	Special Weather Statement	GSP	Cabarrus, Mecklenburg	32 min
Aug 7, 9:42 PM EDT	Special Weather Statement	GSP	Cabarrus, Mecklenburg	33 min
Aug 7, 9:53 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Union	52 min
Aug 8, 1:49 PM EDT	Special Weather Statement	GSP	Haywood	26 min
Aug 8, 1:53 PM EDT	Special Weather Statement	GSP	Macon	37 min
Aug 8, 2:11 PM EDT	Special Weather Statement	GSP	Polk	34 min
Aug 8, 2:20 PM EDT	Special Weather Statement	GSP	Davie	25 min
Aug 8, 2:26 PM EDT	Special Weather Statement	GSP	Transylvania	34 min
Aug 8, 2:28 PM EDT	Special Weather Statement	GSP	Henderson	32 min
Aug 8, 2:45 PM EDT	Special Weather Statement	GSP	Buncombe	30 min
Aug 8, 2:55 PM EDT	Special Weather Statement	GSP	Alexander	35 min
Aug 8, 3:00 PM EDT	Special Weather Statement	GSP	Henderson	30 min
Aug 8, 3:20 PM EDT	Special Weather Statement	GSP	McDowell	25 min
Aug 8, 3:27 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Polk, Rutherford	37 min
Aug 8, 3:35 PM EDT	Special Weather Statement	GSP	Swain	40 min
Aug 8, 3:46 PM EDT	Severe Thunderstorm Warning	GSP	Catawba, Lincoln	44 min
Aug 8, 3:52 PM EDT	Special Weather Statement	GSP	Graham	38 min
Aug 8, 3:59 PM EDT	Special Weather Statement	GSP	Madison	46 min
Aug 8, 4:01 PM EDT	Special Weather Statement	GSP	Henderson, Polk, Rutherford	59 min
Aug 8, 4:17 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Swain	43 min
Aug 8, 4:21 PM EDT	Special Weather Statement	GSP	Caldwell	24 min
Aug 8, 4:25 PM EDT	Special Weather Statement	GSP	Catawba	35 min
Aug 8, 4:25 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Madison, Yancey	65 min
Aug 8, 4:29 PM EDT	Severe Thunderstorm Warning	GSP	Burke, McDowell	46 min
Aug 8, 4:31 PM EDT	Special Weather Statement	GSP	Mitchell	29 min
Aug 8, 4:33 PM EDT	Special Weather Statement	GSP	Macon	27 min
Aug 8, 4:36 PM EDT	Special Weather Statement	GSP	Davie	24 min
Aug 8, 4:42 PM EDT	Severe Thunderstorm Warning	GSP	Burke, Catawba	48 min
Aug 8, 4:47 PM EDT	Special Weather Statement	GSP	Haywood	43 min
Aug 8, 4:49 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland	41 min
Aug 8, 4:59 PM EDT	Special Weather Statement	GSP	Buncombe	31 min
Aug 8, 5:01 PM EDT	Special Weather Statement	GSP	Jackson	29 min
Aug 8, 5:06 PM EDT	Special Weather Statement	GSP	Macon	24 min
Aug 8, 5:06 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Burke, Caldwell, Catawba	39 min
Aug 8, 5:08 PM EDT	Special Weather Statement	GSP	Avery	37 min
Aug 8, 5:13 PM EDT	Special Weather Statement	GSP	Jackson	32 min
Aug 8, 5:23 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Lincoln	37 min
Aug 8, 5:30 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Iredell	45 min
Aug 8, 5:33 PM EDT	Special Weather Statement	GSP	McDowell	27 min
Aug 8, 5:36 PM EDT	Severe Thunderstorm Warning	GSP	Jackson, Macon, Transylvania	54 min
Aug 8, 5:39 PM EDT	Special Weather Statement	GSP	Mecklenburg	36 min
Aug 8, 5:42 PM EDT	Special Weather Statement	GSP	Henderson	33 min
Aug 8, 5:48 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Cabarrus, Catawba, Gaston, Iredell, Lincoln and 3 more	57 min
Aug 8, 6:01 PM EDT	Special Weather Statement	GSP	Caldwell	29 min
Aug 8, 6:09 PM EDT	Special Weather Statement	GSP	Transylvania	36 min
Aug 8, 6:12 PM EDT	Special Weather Statement	GSP	Rowan	18 min
Aug 8, 6:20 PM EDT	Areal Flood Advisory	GSP	Alexander	115 min
Aug 8, 6:30 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Rowan	45 min
Aug 8, 6:40 PM EDT	Special Weather Statement	GSP	Polk	50 min
Aug 8, 7:14 PM EDT	Special Weather Statement	GSP	Union	31 min
Aug 8, 1:37 PM EDT	Severe Thunderstorm Warning	GSP	Oconee	38 min
Aug 8, 2:04 PM EDT	Special Weather Statement	GSP	Oconee	26 min
Aug 8, 2:17 PM EDT	Severe Thunderstorm Warning	GSP	Oconee, Pickens	43 min
Aug 8, 3:14 PM EDT	Severe Thunderstorm Warning	GSP	Greenville	46 min
Aug 8, 3:36 PM EDT	Special Weather Statement	GSP	Greenville, Spartanburg	39 min
Aug 8, 4:20 PM EDT	Special Weather Statement	GSP	Cherokee, Spartanburg, Union	40 min
Aug 8, 6:24 PM EDT	Special Weather Statement	GSP	Chester	36 min
Aug 8, 7:06 PM EDT	Special Weather Statement	GSP	Laurens	24 min
Aug 8, 7:25 PM EDT	Special Weather Statement	GSP	Abbeville, Cherokee, Laurens, Spartanburg, Union	65 min
Aug 8, 7:42 PM EDT	Severe Thunderstorm Warning	GSP	Abbeville, Greenville, Greenwood, Laurens, Spartanburg, Union	48 min
Aug 7, 8:32 PM EDT	Special Weather Statement	GSP	Rabun	28 min
Aug 8, 1:00 PM EDT	Special Weather Statement	GSP	Rabun	30 min
Aug 8, 1:28 PM EDT	Special Weather Statement	GSP	Rabun	32 min
Aug 8, 1:35 PM EDT	Special Weather Statement	GSP	Habersham	25 min
Aug 8, 4:52 PM EDT	Special Weather Statement	GSP	Rabun	23 min
Aug 8, 5:23 PM EDT	Special Weather Statement	GSP	Rabun	37 min
Aug 8, 6:21 PM EDT	Special Weather Statement	GSP	Stephens	24 min

Nearby

Special Weather Statements in North Carolina, 2018 Every special weather statement in 2018

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.