Alert archive / North Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Greenville-Spartanburg, SC

May 11, 2011Mecklenburg County, North Carolina

NWS Greenville-Spartanburg, SC issued this special weather statement at May 11, 2011, 10:13 PM EDT for Mecklenburg County, North Carolina. It was in force for 47 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
May 11, 2011, 10:13 PM EDT (02:13 UTC)
Expired
May 11, 2011, 11:00 PM EDT
In force
47 min
Issued by
NWS Greenville-Spartanburg, SC

County Mecklenburg County, NC

The radar

The Columbia radar (KCAE), 132 km from the middle of the area, began a volume at 02:16 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, 2.2 hours before the alert went out and 132 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 00:00Z on 2011-05-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 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 00:00Z on 2011-05-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1003 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
217 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 May 11, 9:56 PM EDT, 17 minutes earlier.

Area forecast discussion, May 11, 9:56 PM EDT, 17 minutes before
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Hazardous weather outlook, May 11, 2:58 PM EDT, 7 hours 15 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
258 PM EDT WED MAY 11 2011

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-121900-
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-
258 PM EDT WED MAY 11 2011

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

.DAY ONE...THIS AFTERNOON AND TONIGHT.

SCATTERED TO NUMEROUS THUNDERSTORMS ARE EXPECTED TO DEVELOP OVER
THE BLUE RIDGE AND FOOTHILLS LATE THIS AFTERNOON. THE STORMS ARE
THEN EXPECTED TO MOVE SOUTH...ACROSS THE FOOTHILLS AND PIEDMONT
INTO THE EVENING HOURS. SOME STORMS COULD BECOME SEVERE...
PRODUCING DAMAGING STRAIGHT LINE WINDS AND LARGE HAIL.

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

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, May 11, 7:50 PM EDT, 2 hours 23 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
750 PM EDT WED MAY 11 2011

NCZ036-037-057-120030-
DAVIE-IREDELL-ROWAN-
750 PM EDT WED MAY 11 2011

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN IREDELL...
NORTHWESTERN ROWAN AND WESTERN DAVIE COUNTIES THROUGH 830 PM EDT...

AT 747 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 3 MILES NORTHWEST OF SHEFFIELD...OR 10 MILES
SOUTH OF YADKINVILLE...MOVING SOUTH AT 25 MPH.

PEOPLE IN NORTHEASTERN IREDELL...NORTHWESTERN ROWAN AND WESTERN DAVIE
COUNTIES...INCLUDING THE FOLLOWING LOCATIONS...

HARMONY AND CLEVELAND...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

DIME SIZE HAIL...AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3576 8046 3570 8081 3605 8082 3605 8059

MOORE
Local storm report, May 11, 7:51 PM EDT, 2 hours 22 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
751 PM EDT WED MAY 11 2011

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

0720 PM     HAIL             2 NW TURNERVILLE        34.71N 83.45W
05/11/2011  E1.00 INCH       HABERSHAM          GA   TRAINED SPOTTER

            SPOTTER CALLED BACK AND AFTER A QUICK SURVEY OF THE YARD
            FOUND THAT MANY OF THE HAIL STONES WERE 1 INCH IN
            DIAMETER.

&&

BSH
Local storm report, May 11, 8:19 PM EDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
819 PM EDT WED MAY 11 2011

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

0709 PM     TSTM WND DMG     LAKEMONT                34.78N 83.42W
05/11/2011                   RABUN              GA   COUNTY OFFICIAL

            RABUN COUNTY COMMS REPORTS ONE TREE DOWN AND SEVERAL
            POWERLINES DOWN IN LAKEMONT.

&&

BSH
Special weather statement, May 11, 8:34 PM EDT, 1 hour 39 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
834 PM EDT WED MAY 11 2011

NCZ068-508-120115-
CLEVELAND-GREATER RUTHERFORD-
834 PM EDT WED MAY 11 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN RUTHERFORD AND WESTERN
CLEVELAND COUNTIES THROUGH 915 PM EDT...

AT 829 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES NORTHEAST OF SUNSHINE...OR 15 MILES
NORTHEAST OF RUTHERFORDTON...MOVING SOUTH AT 15 MPH.

PEOPLE IN EASTERN RUTHERFORD AND WESTERN CLEVELAND COUNTIES...
INCLUDING THE FOLLOWING LOCATIONS...

POLKVILLE AND ELLENBORO...

SHOULD MONITOR THE WEATHER SITUATION CLOSELY. LISTEN FOR POSSIBLE
WARNINGS AND BE PREPARED TO TAKE APPROPRIATE ACTION SHOULD SEVERE
WEATHER THREATEN.

DIME SIZE HAIL...AND WIND GUSTS UP TO 40 MPH ARE EXPECTED WITH THIS
STORM.

LAT...LON 3556 8164 3524 8149 3518 8160 3519 8186
      3554 8187 3559 8176

MOORE
Special weather statement, May 11, 10:08 PM EDT, 5 minutes before
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Special weather statement, May 11, 10:13 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
May 11, 8:34 PM EDTSpecial Weather StatementGSPCleveland41 min
May 11, 9:02 PM EDTSevere Thunderstorm WarningGSPCleveland, Rutherford37 min
May 11, 10:08 PM EDTSpecial Weather StatementGSPUnion52 min
May 12, 2:15 PM EDTSpecial Weather StatementGSPHenderson45 min
May 12, 3:26 PM EDTSevere Thunderstorm WarningGSPBuncombe, Henderson64 min
May 12, 3:33 PM EDTSpecial Weather StatementGSPBuncombe42 min
May 12, 4:04 PM EDTSevere Thunderstorm WarningGSPHenderson, Transylvania56 min
May 12, 4:21 PM EDTSpecial Weather StatementGSPMcDowell, Rutherford39 min
May 12, 4:46 PM EDTSpecial Weather StatementGSPHaywood44 min
May 12, 5:02 PM EDTSpecial Weather StatementGSPTransylvania43 min
May 12, 5:23 PM EDTSpecial Weather StatementGSPTransylvania52 min
May 12, 5:32 PM EDTSpecial Weather StatementGSPHaywood43 min
May 12, 6:10 PM EDTSpecial Weather StatementGSPTransylvania50 min
May 12, 7:04 PM EDTSevere Thunderstorm WarningGSPTransylvania56 min
May 12, 5:57 PM EDTSpecial Weather StatementGSPOconee48 min

Nearby

Special Weather Statements in North Carolina, 2011Every special weather statement in 2011

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.