Alert archive / South Carolina / Special Weather Statements in 2012

Special Weather Statement, NWS Greenville-Spartanburg, SC

April 4, 2012Greenville County, South Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at Apr 4, 2012, 2:52 PM EDT for Greenville County, South 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: Apr 4, 2012, 2:52 PM EDT (18:52 UTC)
Expired: Apr 4, 2012, 3:30 PM EDT
In force: 38 min
Issued by: NWS Greenville-Spartanburg, SC

County Greenville County, SC

The radar

The Greer radar (KGSP), 17 km from the middle of the area, began a volume at 18:55 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, 6.9 hours before the alert went out and 259 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: 94 J/kg
Mixed-layer CIN: -189 J/kg
Mixed-layer LCL: 1161 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 167 m²/s²
0-3 km storm-relative helicity: 146 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 Apr 4, 2:40 PM EDT, 12 minutes earlier.

Area forecast discussion, Apr 4, 2:40 PM EDT, 12 minutes before

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Hazardous weather outlook, Apr 4, 6:26 AM EDT, 8 hours 26 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
626 AM EDT WED APR 4 2012

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-051030-
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-
626 AM EDT WED APR 4 2012

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

.DAY ONE...TODAY AND TONIGHT.

NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER
THE MOUNTAINS THIS AFTERNOON. THE STORMS SHOULD THEN MOVE
EAST...ACROSS THE FOOTHILLS AND PIEDMONT DURING THE LATE AFTERNOON
AND EVENING HOURS. SOME OF THESE THUNDERSTORMS MAY BECOME
SEVERE...PRODUCING AREAS OF DAMAGING STRAIGHT-LINE WINDS.

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

WIDESPREAD SHOWER AND THUNDERSTORM ACTIVITY WILL AFFECT THE REGION
THURSDAY AND THURSDAY NIGHT. LOCALLY HEAVY RAIN IS EXPECTED...AND
LOCALIZED FLOODING MAY DEVELOP. A FEW OF THE THUNDERSTORMS MAY
ALSO BECOME SEVERE. LARGE HAIL...DAMAGING WINDS AND LIGHTNING WILL
BE THE MAIN THREATS.

.SPOTTER INFORMATION STATEMENT...

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

MCAVOY

In the hours before

Local storm report, Apr 4, 9:25 AM EDT, 5 hours 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
925 AM EDT WED APR 04 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     HAIL             5 ENE TOCCOA            34.60N 83.24W
04/03/2012  E0.50 INCH       STEPHENS           GA   PUBLIC

&&

PTANNER

Local storm report, Apr 4, 9:41 AM EDT, 5 hours 11 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
941 AM EDT WED APR 04 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1115 PM     TSTM WND DMG     2 SW MONROE             34.97N 80.57W
04/03/2012                   UNION              NC   911 CALL CENTER

            SEVERAL TREES DOWN ALONG WAXHAW HIGHWAY...ESPECIALLY NEAR
            THE INTERSECTION WITH SOUTH ROCKY RIVER ROAD.

&&

NED

Local storm report, Apr 4, 9:43 AM EDT, 5 hours 9 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
943 AM EDT WED APR 04 2012

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0240 PM     HAIL             5 NNW CLAYTON           34.93N 83.45W
04/03/2012  E0.75 INCH       RABUN              GA   PUBLIC

            OBSERVED OFF OF WOLFFORK RD.

&&

CSH

Special weather statement, Apr 4, 2:21 PM EDT, 31 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
221 PM EDT WED APR 4 2012

NCZ036-037-041900-
DAVIE-IREDELL-
221 PM EDT WED APR 4 2012

...A STRONG THUNDERSTORM WILL AFFECT NORTHERN IREDELL AND
NORTHWESTERN DAVIE COUNTIES THROUGH 300 PM EDT...

AT 216 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM NEAR UNION GROVE...OR 14 MILES SOUTH OF RONDA...
MOVING EAST AT 15 MPH.

* OTHER LOCATIONS AFFECTED INCLUDE BUT ARE NOT LIMITED TO UNION
  GROVE...SHEFFIELD...MOCKSVILLE...HARMONY AND FARMINGTON.

SMALL HAIL...AND WIND GUSTS OF 30 TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3606 8094 3605 8050 3605 8049 3589 8049
      3593 8097 3607 8097

07

Local storm report, Apr 4, 2:32 PM EDT, 20 minutes before

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Special weather statement, Apr 4, 2:52 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
Apr 3, 8:10 PM EDT	Special Weather Statement	GSP	Davie, Iredell, Rowan	50 min
Apr 3, 9:00 PM EDT	Special Weather Statement	GSP	Cabarrus, Rowan	45 min
Apr 3, 9:52 PM EDT	Special Weather Statement	GSP	Cabarrus, Mecklenburg, Union	38 min
Apr 3, 10:42 PM EDT	Special Weather Statement	GSP	Union	48 min
Apr 3, 11:10 PM EDT	Severe Thunderstorm Warning	GSP	Union	25 min
Apr 4, 2:21 PM EDT	Special Weather Statement	GSP	Davie	39 min
Apr 3, 8:19 PM EDT	Special Weather Statement	GSP	Greenwood	26 min
Apr 3, 8:43 PM EDT	Special Weather Statement	GSP	Union	47 min
Apr 3, 9:33 PM EDT	Special Weather Statement	GSP	Chester	42 min
Apr 3, 9:53 PM EDT	Severe Thunderstorm Warning	GSP	Chester	67 min
Apr 4, 4:24 PM EDT	Special Weather Statement	GSP	Greenville	51 min
Apr 4, 4:51 PM EDT	Special Weather Statement	GSP	Abbeville, Greenwood	39 min
Apr 4, 5:32 PM EDT	Special Weather Statement	GSP	Greenwood	43 min
Apr 4, 6:27 PM EDT	Special Weather Statement	GSP	Chester	48 min

Nearby

Special Weather Statements in South 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.