Alert archive / South Carolina / Special Weather Statements in 2016

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 21, 2016Oconee County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 21, 2016, 1:49 PM EDT for Oconee County, South 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
Jul 21, 2016, 1:49 PM EDT (17:49 UTC)
Expired
Jul 21, 2016, 2:15 PM EDT
In force
26 min
Issued by
NWS Greenville-Spartanburg, SC

County Oconee County, SC

The radar

The Greer radar (KGSP), 75 km from the middle of the area, began a volume at 17:51 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

Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 5.8 hours before the alert went out and 215 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, Peachtre/Fal Fld, GA at 12:00Z on 2016-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1259 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, Peachtre/Fal Fld, GA at 12:00Z on 2016-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -8 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
1259 J/kg
Mixed-layer CIN
-79 J/kg
Mixed-layer LCL
1185 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
-8 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

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 Jul 21, 10:49 AM EDT, 3 hours earlier.

Area forecast discussion, Jul 21, 10:49 AM EDT, 3 hours before
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Hazardous weather outlook, Jul 21, 5:04 AM EDT, 8 hours 45 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
504 AM EDT THU JUL 21 2016

GAZ010-017-NCZ033-035-048>053-058-059-062>065-501>510-SCZ001>003-
220915-
RABUN-HABERSHAM-AVERY-ALEXANDER-MADISON-YANCEY-MITCHELL-SWAIN-
HAYWOOD-BUNCOMBE-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-
TRANSYLVANIA-HENDERSON-CALDWELL MOUNTAINS-GREATER CALDWELL-
BURKE MOUNTAINS-GREATER BURKE-MCDOWELL MOUNTAINS-EASTERN MCDOWELL-
RUTHERFORD MOUNTAINS-GREATER RUTHERFORD-POLK MOUNTAINS-EASTERN POLK-
OCONEE MOUNTAINS-PICKENS MOUNTAINS-GREENVILLE MOUNTAINS-
504 AM EDT THU JUL 21 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA...WESTERN NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN
THIS AFTERNOON AND EVENING...WITH THE HIGHEST COVERAGE EXPECTED IN
THE MOUNTAINS. THE MAIN THREATS WILL BE FREQUENT CLOUD-TO-GROUND
LIGHTNING...LOCALLY HEAVY RAINFALL...AND GUSTY WINDS. A FEW STORMS
MAY BE STRONG ENOUGH TO PRODUCE DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SUNDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..MONDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

GAZ018-026-028-029-NCZ036-037-056-057-068>072-082-SCZ004>014-019-
220915-
STEPHENS-FRANKLIN-HART-ELBERT-IREDELL-DAVIE-CATAWBA-ROWAN-CLEVELAND-
LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-CHESTER-GREENWOOD-
504 AM EDT THU JUL 21 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTHEAST GEORGIA...PIEDMONT
NORTH CAROLINA AND UPSTATE SOUTH CAROLINA.

.DAY ONE...TODAY AND TONIGHT.

ISOLATED TO SCATTERED SHOWERS AND THUNDERSTORMS WILL DEVELOP AGAIN
THIS AFTERNOON AND EVENING...WITH THE HIGHEST COVERAGE EXPECTED IN
THE MOUNTAINS. THE MAIN THREATS WILL BE FREQUENT CLOUD-TO-GROUND
LIGHTNING...LOCALLY HEAVY RAINFALL...AND GUSTY WINDS. A FEW STORMS
MAY BE STRONG ENOUGH TO PRODUCE DAMAGING WIND GUSTS.

.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY.

..FRIDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..SATURDAY...EXCESSIVE HEAT POSSIBLE. HEAT INDEX VALUES ARE
FORECAST TO RANGE FROM 100 TO 108 DEGREES ACROSS MUCH OF THE
PIEDMONT EACH AFTERNOON FROM SATURDAY THROUGH MONDAY.
..SUNDAY...EXCESSIVE HEAT POSSIBLE.
..MONDAY...EXCESSIVE HEAT POSSIBLE.
..TUESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.
..WEDNESDAY...NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

ARK

In the hours before

Special weather statement, Jul 21, 1:49 PM EDT, 0 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
149 PM EDT THU JUL 21 2016

GAZ010-NCZ062-SCZ001-211815-
RABUN GA-MACON NC-OCONEE MOUNTAINS SC-
149 PM EDT THU JUL 21 2016

...A STRONG THUNDERSTORM WITH INTENSE LIGHTNING WILL IMPACT
NORTHEASTERN RABUN...SOUTHEASTERN MACON AND CENTRAL OCONEE COUNTIES
UNTIL 215 PM EDT...

AT 148 PM EDT...DOPPLER RADAR WAS TRACKING A STRONG THUNDERSTORM
WITH INTENSE LIGHTNING 10 MILES NORTHEAST OF CLAYTON...OR 5 MILES
SOUTHEAST OF SKY VALLEY...MOVING SOUTHEAST AT 30 MPH.

LOCATIONS TO BE IMPACTED INCLUDE...
WALHALLA...SALEM...OCONEE STATE PARK...LAKE KEOWEE...SKY VALLEY...
HIGHLANDS...MOUNTAIN REST AND PINE MOUNTAIN.

IN ADDITION TO INTENSE LIGHTNING...WIND GUSTS UP TO 40 MPH 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 3506 8325 3491 8290 3490 8290 3490 8291
      3484 8290 3481 8290 3476 8297 3469 8306
      3492 8337
TIME...MOT...LOC 1748Z 305DEG 26KT 3495 8323

07

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 1:52 PM EDTSpecial Weather StatementGSPMecklenburg23 min
Jul 21, 2:03 PM EDTSevere Thunderstorm WarningGSPHenderson, Transylvania42 min
Jul 21, 2:31 PM EDTSpecial Weather StatementGSPMecklenburg44 min
Jul 21, 2:47 PM EDTSpecial Weather StatementGSPHenderson28 min
Jul 21, 2:51 PM EDTSevere Thunderstorm WarningGSPMecklenburg24 min
Jul 21, 3:01 PM EDTSevere Thunderstorm WarningGSPHenderson, Polk30 min
Jul 21, 6:37 PM EDTSpecial Weather StatementGSPRutherford38 min
Jul 21, 6:43 PM EDTSpecial Weather StatementGSPCleveland32 min
Jul 20, 8:43 PM EDTSpecial Weather StatementGSPSpartanburg47 min
Jul 20, 9:01 PM EDTSevere Thunderstorm WarningGSPCherokee, Spartanburg44 min
Jul 20, 9:16 PM EDTSpecial Weather StatementGSPGreenwood29 min
Jul 21, 4:16 AM EDTSpecial Weather StatementGSPLaurens29 min
Jul 21, 5:50 AM EDTAreal Flood AdvisoryGSPLaurens115 min
Jul 21, 1:54 PM EDTSpecial Weather StatementGSPGreenville36 min
Jul 21, 3:55 PM EDTSpecial Weather StatementGSPAnderson50 min
Jul 21, 4:06 PM EDTSevere Thunderstorm WarningGSPAnderson24 min
Jul 21, 4:22 PM EDTSpecial Weather StatementGSPAbbeville38 min
Jul 21, 4:57 PM EDTSpecial Weather StatementGSPAbbeville48 min
Jul 21, 5:28 PM EDTSpecial Weather StatementGSPGreenwood32 min
Jul 21, 6:32 PM EDTSpecial Weather StatementGSPSpartanburg43 min
Jul 21, 6:34 PM EDTSpecial Weather StatementGSPSpartanburg41 min
Jul 21, 7:00 PM EDTSpecial Weather StatementGSPSpartanburg30 min
Jul 21, 7:07 PM EDTAreal Flood AdvisoryGSPSpartanburg113 min
Jul 21, 7:27 PM EDTFlash Flood WarningGSPSpartanburg3 hr
Jul 21, 7:31 PM EDTSevere Thunderstorm WarningGSPSpartanburg29 min
Jul 21, 7:54 PM EDTSpecial Weather StatementGSPGreenville51 min
Jul 21, 2:44 PM EDTSpecial Weather StatementGSPHabersham31 min
Jul 21, 3:42 PM EDTSpecial Weather StatementGSPStephens48 min
Jul 21, 4:29 PM EDTSpecial Weather StatementGSPHart31 min
Jul 21, 4:55 PM EDTSpecial Weather StatementGSPHart35 min

Nearby

Special Weather Statements in South Carolina, 2016Every special weather statement in 2016

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.