Alert archive / North Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

July 28, 2012Union County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Jul 28, 2012, 9:37 PM EDT for Union County, North Carolina. It was in force for 38 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 28, 2012, 9:37 PM EDT (01:37 UTC)
Expired: Jul 28, 2012, 10:15 PM EDT
In force: 38 min
Issued by: NWS Greenville-Spartanburg, SC

County Union County, NC

The radar

The Columbia radar (KCAE), 124 km from the middle of the area, began a volume at 01:39 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, 1.6 hours before the alert went out and 139 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: 846 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1942 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: -21 m²/s²
0-3 km storm-relative helicity: 25 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.1

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 28, 8:02 PM EDT, 1 hour 35 minutes earlier.

Area forecast discussion, Jul 28, 8:02 PM EDT, 1 hour 35 minutes before

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Hazardous weather outlook, Jul 28, 2:42 PM EDT, 6 hours 55 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
242 PM EDT SAT JUL 28 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-291930-
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-
242 PM EDT SAT JUL 28 2012

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

THUNDERSTORMS ARE IN THE FORECAST THIS AFTERNOON THROUGH EARLY THIS
EVENING. SOME OF THESE STORMS ARE EXPECTED TO BECOME SEVERE...WITH
DAMAGING WIND GUSTS BEING THE PRIMARY THREAT. HOWEVER...A FEW OF
THE STRONGEST STORMS COULD PRODUCE A BRIEF PERIOD OF LARGE HAIL.
FREQUENT CLOUD TO GROUND LIGHTNING AND LOCALLY HEAVY RAINFALL WILL
BE POSSIBLE WITH ANY THUNDERSTORM.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.

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.

07

In the hours before

Special weather statement, Jul 28, 8:08 PM EDT, 1 hour 29 minutes before

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Local storm report, Jul 28, 9:01 PM EDT, 36 minutes before

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Local storm report, Jul 28, 9:01 PM EDT, 36 minutes before

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Special weather statement, Jul 28, 9:04 PM EDT, 33 minutes before

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Local storm report, Jul 28, 9:29 PM EDT, 8 minutes before

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Special weather statement, Jul 28, 9:37 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
Jul 28, 8:08 PM EDT	Special Weather Statement	GSP	Chester	52 min
Jul 28, 8:17 PM EDT	Severe Thunderstorm Warning	GSP	Chester	28 min
Jul 28, 9:04 PM EDT	Special Weather Statement	GSP	Chester	41 min

Nearby

Special Weather Statements in North Carolina, 2012 Every 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.