Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Greenville-Spartanburg, SC

August 6, 2018Henderson County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Aug 6, 2018, 2:46 PM EDT for Henderson County, North Carolina. It was in force for 29 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 6, 2018, 2:46 PM EDT (18:46 UTC)
Expired
Aug 6, 2018, 3:15 PM EDT
In force
29 min
Issued by
NWS Greenville-Spartanburg, SC

County Henderson County, NC

The radar

The Greer radar (KGSP), 49 km from the middle of the area, began a volume at 18:49 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, 6.8 hours before the alert went out and 254 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2018-08-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 874 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2018-08-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 18 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
874 J/kg
Mixed-layer CIN
-44 J/kg
Mixed-layer LCL
1356 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
18 m²/s²
0-3 km storm-relative helicity
33 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 6, 1:57 PM EDT, 49 minutes earlier.

Area forecast discussion, Aug 6, 1:57 PM EDT, 49 minutes before
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Hazardous weather outlook, Aug 6, 4:59 AM EDT, 9 hours 47 minutes before
Hazardous Weather Outlook
National Weather Service Greenville-Spartanburg SC
459 AM EDT Mon Aug 6 2018

NCZ033-048>053-058-059-062>065-501-503-505-507-509-070900-
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-
459 AM EDT Mon Aug 6 2018

This Hazardous Weather Outlook is for the mountains of western North
Carolina.

.DAY ONE...Today and tonight.

Numerous showers and thunderstorms will develop across the North
Carolina mountains this afternoon and evening. Any of these
thunderstorms will have the potential to produce cloud-to-ground
lightning strikes, locally heavy rainfall, and briefly gusty winds.

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

Thunderstorm coverage will increase across the area through the week.
The daily thunderstorms will have the greatest coverage during the
afternoon and evening hours and may produce cloud-to-ground
lightning, heavy rainfall, and gusty winds.

.SPOTTER INFORMATION STATEMENT...

None.

GAZ010-017-018-026-028-029-NCZ035>037-056-057-068>072-082-502-504-
506-508-510-SCZ001>014-019-070900-
Rabun-Habersham-Stephens-Franklin-Hart-Elbert-Alexander-Iredell-
Davie-Catawba-Rowan-Cleveland-Lincoln-Gaston-Mecklenburg-Cabarrus-
Union-Greater Caldwell-Greater Burke-Eastern McDowell-
Greater Rutherford-Eastern Polk-Oconee Mountains-Pickens Mountains-
Greenville Mountains-Greater Oconee-Greater Pickens-
Greater Greenville-Spartanburg-Cherokee-York-Anderson-Abbeville-
Laurens-Chester-Greenwood-
459 AM EDT Mon Aug 6 2018

This Hazardous Weather Outlook is for northeast Georgia, the
foothills and piedmont of western North Carolina, and Upstate South
Carolina.

.DAY ONE...Today and tonight.

Scattered showers and thunderstorms will develop across the region
this afternoon and evening. Any of these thunderstorms will have the
potential to produce cloud-to-ground lightning strikes, locally
heavy rainfall, and briefly gusty winds.

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

Thunderstorm coverage will increase across the area through the week.
The daily thunderstorms will have the greatest coverage during the
afternoon and evening hours and may produce cloud-to-ground
lightning, heavy rainfall, and gusty winds.

Additionally, heat index values will range from 95 to 100 degrees
during the afternoon hours on Tuesday and Wednesday.

.SPOTTER INFORMATION STATEMENT...

None.

HG

In the hours before

Special weather statement, Aug 6, 1:32 PM EDT, 1 hour 14 minutes before
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Special weather statement, Aug 6, 1:34 PM EDT, 1 hour 12 minutes before
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Special weather statement, Aug 6, 1:40 PM EDT, 1 hour 6 minutes before
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Special weather statement, Aug 6, 1:43 PM EDT, 1 hour 3 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
143 PM EDT MON AUG 6 2018

NCZ035-056-501-502-061845-
Caldwell Mountains NC-Greater Caldwell NC-Alexander NC-Catawba NC-
143 PM EDT MON AUG 6 2018

...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT NORTH
CENTRAL CATAWBA...WESTERN ALEXANDER AND EASTERN CALDWELL COUNTIES
UNTIL 245 PM EDT...

At 143 PM EDT, Doppler radar was tracking a strong thunderstorm with
intense lightning 11 miles west of Boomer, or near Elkville, moving
southeast at 20 mph.

Locations to be impacted include...
Taylorsville, Hickory, Bethlehem, Cedar Rock, Lake Hickory, St.
Stephens, Kings Creek, Little River In Alexander County, Ellendale
and Millersville.

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...

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 this storm. 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 storm approaches.

&&

LAT...LON 3610 8152 3610 8150 3609 8147 3609 8145
      3607 8144 3607 8141 3605 8139 3604 8140
      3602 8135 3600 8133 3603 8127 3603 8122
      3593 8109 3574 8133 3606 8161 3611 8153
TIME...MOT...LOC 1743Z 320DEG 16KT 3607 8145

STUREY
Special weather statement, Aug 6, 2:46 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service Greenville-Spartanburg SC
246 PM EDT MON AUG 6 2018

NCZ052-053-064-065-509-061915-
Buncombe NC-Transylvania NC-Haywood NC-Henderson NC-
Polk Mountains NC-
246 PM EDT MON AUG 6 2018

...A HEAVY RAIN SHOWER WITH INTENSE LIGHTNING WILL IMPACT
NORTHEASTERN TRANSYLVANIA...HENDERSON...SOUTHEASTERN HAYWOOD AND
SOUTHWESTERN BUNCOMBE COUNTIES UNTIL 315 PM EDT...

At 246 PM EDT, Doppler radar was tracking a heavy rain shower with
intense lightning 9 miles northwest of Hendersonville, or near Mills
River, moving southeast at 15 mph.

Locations to be impacted include...
Hendersonville, Arden, Mills River, Fletcher, Flat Rock, Etowah,
Mountain Home, Laurel Park, Bent Creek and B.R. Parkway-Mount Pisgah
To The Nc Arboretum.

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.

Frequent lightning is occurring with this storm. 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 storm approaches.

&&

LAT...LON 3527 8229 3518 8246 3517 8249 3516 8250
      3517 8250 3516 8253 3516 8255 3515 8257
      3515 8258 3551 8284 3562 8263
TIME...MOT...LOC 1846Z 325DEG 12KT 3540 8261

RWH

The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 6, 1:32 PM EDTSpecial Weather StatementGSPBurke28 min
Aug 6, 1:34 PM EDTSpecial Weather StatementGSPHaywood56 min
Aug 6, 1:40 PM EDTSpecial Weather StatementGSPTransylvania65 min
Aug 6, 1:43 PM EDTSpecial Weather StatementGSPAlexander, Caldwell62 min
Aug 6, 1:51 PM EDTSevere Thunderstorm WarningGSPAlexander, Caldwell54 min
Aug 6, 2:50 PM EDTSpecial Weather StatementGSPAlexander25 min
Aug 6, 3:31 PM EDTSevere Thunderstorm WarningGSPJackson44 min
Aug 6, 3:35 PM EDTSpecial Weather StatementGSPIredell25 min
Aug 6, 3:39 PM EDTSpecial Weather StatementGSPCatawba36 min
Aug 6, 3:53 PM EDTSpecial Weather StatementGSPPolk37 min
Aug 6, 3:55 PM EDTSevere Thunderstorm WarningGSPTransylvania50 min
Aug 6, 4:17 PM EDTSpecial Weather StatementGSPLincoln28 min
Aug 6, 4:25 PM EDTSpecial Weather StatementGSPMecklenburg35 min
Aug 6, 4:42 PM EDTSpecial Weather StatementGSPMecklenburg33 min
Aug 6, 5:09 PM EDTSpecial Weather StatementGSPCabarrus, Gaston, Mecklenburg36 min
Aug 6, 5:45 PM EDTSpecial Weather StatementGSPCabarrus, Mecklenburg30 min
Aug 6, 6:02 PM EDTSpecial Weather StatementGSPCleveland28 min
Aug 6, 6:11 PM EDTSpecial Weather StatementGSPUnion34 min
Aug 6, 6:19 PM EDTAreal Flood AdvisoryGSPCabarrus, Gaston, Mecklenburg, Union116 min
Aug 6, 3:16 PM EDTSpecial Weather StatementGSPGreenville29 min
Aug 6, 3:33 PM EDTSevere Thunderstorm WarningGSPOconee42 min
Aug 6, 4:26 PM EDTSpecial Weather StatementGSPOconee34 min
Aug 6, 4:51 PM EDTSevere Thunderstorm WarningGSPAnderson, Oconee, Pickens39 min
Aug 6, 5:02 PM EDTSevere Thunderstorm WarningGSPGreenville, Laurens43 min
Aug 6, 5:17 PM EDTSevere Thunderstorm WarningGSPSpartanburg, Union43 min
Aug 6, 5:29 PM EDTSevere Thunderstorm WarningGSPAbbeville, Anderson, Greenville, Oconee46 min
Aug 6, 6:07 PM EDTSevere Thunderstorm WarningGSPCherokee, Chester, Union, York38 min
Aug 6, 6:43 PM EDTSpecial Weather StatementGSPChester32 min
Aug 6, 6:53 PM EDTSevere Thunderstorm WarningGSPChester, Union52 min

Nearby

Special Weather Statements in North Carolina, 2018Every 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.