Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 18, 2012Graham County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 18, 2012, 8:41 PM EDT for Graham County, North Carolina. It was in force for 34 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 18, 2012, 8:41 PM EDT (00:41 UTC)
Expired
Jul 18, 2012, 9:15 PM EDT
In force
34 min
Issued by
NWS Greenville-Spartanburg, SC

County Graham County, NC

The radar

The Knoxville radar (KMRX), 98 km from the middle of the area, began a volume at 00:42 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 00:00Z, 0.7 hours before the alert went out and 232 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 00:00Z on 2012-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1133 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 00:00Z on 2012-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 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
1133 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
1025 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
60 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 18, 8:07 PM EDT, 34 minutes earlier.

Area forecast discussion, Jul 18, 8:07 PM EDT, 34 minutes before
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Hazardous weather outlook, Jul 18, 4:07 PM EDT, 4 hours 34 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
407 PM EDT WED JUL 18 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-192015-
RABUN-HABERSHAM-STEPHENS-FRANKLIN-HART-ELBERT-AVERY-ALEXANDER-
IREDELL-DAVIE-MADISON-YANCEY-MITCHELL-SWAIN-HAYWOOD-BUNCOMBE-CATAWBA-
ROWAN-GRAHAM-NORTHERN JACKSON-MACON-SOUTHERN JACKSON-TRANSYLVANIA-
HENDERSON-CLEVELAND-LINCOLN-GASTON-MECKLENBURG-CABARRUS-UNION NC-
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-GREATER OCONEE-
GREATER PICKENS-GREATER GREENVILLE-SPARTANBURG-CHEROKEE-YORK-
ANDERSON-ABBEVILLE-LAURENS-UNION SC-CHESTER-GREENWOOD-
407 PM EDT WED JUL 18 2012

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

.DAY ONE...TONIGHT.

NUMEROUS SLOW MOVING THUNDERSTORMS WILL CONTINUE TO DEVELOP OVER
THE REGION THROUGH THE EVENING. A FEW OF THE THUNDERSTORMS WILL
PRODUCE SMALL AREAS OF WIND DAMAGE AND HAIL UP TO THE SIZE OF
QUARTERS. LOCALLY VERY HEAVY RAINFALL IS ALSO POSSIBLE WITH THE
STRONGER STORMS AND FLOODING OF POOR DRAINAGE AREAS MAY DEVELOP.
MANY OF THE STORMS WILL PRODUCE FREQUENT CLOUD TO GROUND LIGHTING.

THE EFFECTS OF HEAVY RAIN AND SATURATED SOILS WILL ENHANCE THE
THREAT OF FALLING TREES.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

SKYWARN SPOTTERS ARE REQUESTED TO FORWARD ANY REPORTS OF LARGE
HAIL...DAMAGING WINDS...TORNADOES OR FLASH FLOODING TO OUR OFFICE.

In the hours before

Local storm report, Jul 18, 6:41 PM EDT, 2 hours before
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Local storm report, Jul 18, 7:16 PM EDT, 1 hour 25 minutes before
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Local storm report, Jul 18, 7:26 PM EDT, 1 hour 15 minutes before
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Local storm report, Jul 18, 7:43 PM EDT, 58 minutes before
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Local storm report, Jul 18, 8:24 PM EDT, 17 minutes before
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Special weather statement, Jul 18, 8:41 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.

IssuedProductOfficeCountiesLasted
Jul 19, 12:54 PM EDTSpecial Weather StatementGSPAvery, Burke, Caldwell, McDowell, Mitchell, Yancey36 min
Jul 19, 1:34 PM EDTSpecial Weather StatementGSPBurke41 min
Jul 19, 1:45 PM EDTSpecial Weather StatementGSPCleveland45 min
Jul 19, 1:52 PM EDTSpecial Weather StatementGSPTransylvania38 min
Jul 19, 2:08 PM EDTSpecial Weather StatementGSPRutherford37 min
Jul 19, 2:27 PM EDTSevere Thunderstorm WarningGSPMcDowell, Rutherford49 min
Jul 19, 2:51 PM EDTSpecial Weather StatementGSPTransylvania24 min
Jul 19, 3:13 PM EDTSpecial Weather StatementGSPIredell32 min
Jul 19, 3:28 PM EDTSevere Thunderstorm WarningGSPIredell62 min
Jul 19, 3:53 PM EDTSpecial Weather StatementGSPCleveland37 min
Jul 19, 4:06 PM EDTSpecial Weather StatementGSPPolk24 min
Jul 19, 4:09 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Lincoln66 min
Jul 19, 4:11 PM EDTSevere Thunderstorm WarningGSPPolk, Rutherford64 min
Jul 19, 4:17 PM EDTSpecial Weather StatementGSPMcDowell28 min
Jul 19, 4:21 PM EDTAreal Flood AdvisoryGSPHaywood2 hr
Jul 19, 4:43 PM EDTSpecial Weather StatementGSPHaywood32 min
Jul 19, 4:49 PM EDTSpecial Weather StatementGSPIredell26 min
Jul 19, 4:55 PM EDTSpecial Weather StatementGSPHenderson35 min
Jul 19, 5:08 PM EDTSpecial Weather StatementGSPGaston37 min
Jul 19, 5:15 PM EDTSevere Thunderstorm WarningGSPCleveland, Polk, Rutherford60 min
Jul 19, 5:35 PM EDTSpecial Weather StatementGSPCatawba25 min
Jul 19, 5:39 PM EDTSpecial Weather StatementGSPCabarrus36 min
Jul 19, 5:53 PM EDTSpecial Weather StatementGSPUnion52 min
Jul 19, 6:15 PM EDTSpecial Weather StatementGSPAlexander30 min
Jul 19, 6:23 PM EDTSpecial Weather StatementGSPCabarrus37 min
Jul 19, 6:28 PM EDTSevere Thunderstorm WarningGSPCabarrus, Mecklenburg19 min
Jul 19, 6:32 PM EDTSpecial Weather StatementGSPMacon43 min
Jul 19, 7:00 PM EDTSpecial Weather StatementGSPCabarrus30 min
Jul 19, 7:04 PM EDTSpecial Weather StatementGSPAlexander26 min
Jul 19, 7:10 PM EDTSpecial Weather StatementGSPAvery, Mitchell, Yancey95 min
Jul 19, 7:56 PM EDTSpecial Weather StatementGSPAvery, Mitchell, Yancey94 min
Jul 19, 7:58 PM EDTSpecial Weather StatementGSPUnion32 min
Jul 19, 2:35 PM EDTSpecial Weather StatementGSPPickens40 min
Jul 19, 3:02 PM EDTSpecial Weather StatementGSPOconee28 min
Jul 19, 3:21 PM EDTSpecial Weather StatementGSPPickens24 min
Jul 19, 3:25 PM EDTSevere Thunderstorm WarningGSPPickens54 min
Jul 19, 3:57 PM EDTSpecial Weather StatementGSPGreenwood33 min
Jul 19, 4:27 PM EDTSpecial Weather StatementGSPGreenville33 min
Jul 19, 4:42 PM EDTSpecial Weather StatementGSPAnderson33 min
Jul 19, 5:18 PM EDTSpecial Weather StatementGSPYork27 min
Jul 19, 5:58 PM EDTSpecial Weather StatementGSPCherokee32 min
Jul 19, 6:04 PM EDTSpecial Weather StatementGSPYork26 min
Jul 19, 6:12 PM EDTSevere Thunderstorm WarningGSPOconee28 min
Jul 19, 6:21 PM EDTSpecial Weather StatementGSPCherokee39 min
Jul 19, 6:36 PM EDTSpecial Weather StatementGSPYork24 min
Jul 19, 6:57 PM EDTSpecial Weather StatementGSPYork33 min
Jul 19, 7:36 PM EDTSpecial Weather StatementGSPChester, Union24 min
Jul 18, 10:51 PM EDTSpecial Weather StatementGSPRabun24 min
Jul 19, 1:55 PM EDTSpecial Weather StatementGSPRabun50 min
Jul 19, 5:19 PM EDTSpecial Weather StatementGSPHart26 min
Jul 19, 5:55 PM EDTSpecial Weather StatementGSPStephens50 min

Nearby

Special Weather Statements in North Carolina, 2012Every special weather statement in 2012

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.