Alert archive / North Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 249, NWS Greenville-Spartanburg, SC

June 5, 2011Polk County, Rutherford County, North Carolina

NWS Greenville-Spartanburg, SC issued this severe thunderstorm warning at Jun 5, 2011, 3:37 PM EDT for Polk County, Rutherford County, North Carolina. It was in force for 53 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Jun 5, 2011, 3:37 PM EDT (19:37 UTC)
Expired
Jun 5, 2011, 4:30 PM EDT
In force
53 min
Issued by
NWS Greenville-Spartanburg, SC
Area
Storm-based polygon

Counties Polk County, NC, Rutherford County, NC

The radar

The Greer radar (KGSP), 63 km from the middle of the area, began a volume at 19:41 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.

What was reported inside it

TimeReportWhereRemark
Jun 5, 3:47 PM EDTHAIL 15 Ese Lake Lure, NCPENNY TO QUARTER SIZED HAIL AT THE RIVER CREEK CAMPGROUND.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this severe thunderstorm warning; the first came 10 minutes after it went out.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.6 hours before the alert went out and 204 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 12:00Z on 2011-06-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 29 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 12:00Z on 2011-06-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 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
29 J/kg
Mixed-layer CIN
-360 J/kg
Mixed-layer LCL
1836 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
-5 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.

077 
WUUS52 KGSP 051937
SVRGSP
NCC149-161-052030-
/O.NEW.KGSP.SV.W.0249.110605T1937Z-110605T2030Z/

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
337 PM EDT SUN JUN 5 2011

THE NATIONAL WEATHER SERVICE IN GREENVILLE-SPARTANBURG HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  EASTERN POLK COUNTY IN WESTERN NORTH CAROLINA...
  RUTHERFORD COUNTY IN WESTERN NORTH CAROLINA...

* UNTIL 430 PM EDT

* AT 337 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
  DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED 5 MILES
  EAST OF LAKE LURE...OR 11 MILES NORTHWEST OF RUTHERFORDTON...MOVING
  SOUTHEAST AT 10 MPH.

* LOCATIONS IMPACTED INCLUDE...
  RUTHERFORDTON...
  SPINDALE...FOREST CITY...ALEXANDER MILLS AND BOSTIC...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PEOPLE IN THE PATH OF THIS SEVERE THUNDERSTORM SHOULD BE ALERT FOR
LARGE HAIL AND DAMAGING WINDS. FREQUENT LIGHTNING AND LOCALLY HEAVY
RAIN CAN OCCUR WITH ANY THUNDERSTORM. SEEK SHELTER INDOORS AWAY FROM
WINDOWS AND DOORS UNTIL THE STORM PASSES.

TO REPORT DAMAGING WINDS...LARGE HAIL...OR FLOODING...THROUGH OUR
AUTOMATED REPORTING SYSTEM...CALL OUR TOLL FREE NUMBER...
1 8 7 7...6 3 3...6 7 7 2.

&&

LAT...LON 3547 8190 3535 8170 3519 8184 3519 8203
      3542 8226 3553 8217 3552 8214 3553 8209
      3554 8206
TIME...MOT...LOC 1937Z 308DEG 11KT 3544 8211

$$

HG
2 follow-up statements
507 
WWUS52 KGSP 052003
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
403 PM EDT SUN JUN 5 2011

NCC149-161-052030-
/O.CON.KGSP.SV.W.0249.000000T0000Z-110605T2030Z/
POLK NC-RUTHERFORD NC-
403 PM EDT SUN JUN 5 2011

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM EDT
FOR RUTHERFORD AND EASTERN POLK COUNTIES...

AT 403 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE 
HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS 
LOCATED 7 MILES WEST OF RUTHERFORDTON...MOVING SOUTHEAST AT 15 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
BOSTIC...SPINDALE...HARRIS...FOREST CITY...ELLENBORO AND ALEXANDER 
MILLS.

LAT...LON 3544 8192 3534 8173 3519 8184 3519 8203
      3539 8221 3546 8214 3548 8210 3548 8204
      3547 8200
TIME...MOT...LOC 2003Z 317DEG 12KT 3538 8206

$$

HG
421 
WWUS52 KGSP 052028
SVSGSP

SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
428 PM EDT SUN JUN 5 2011

NCC149-161-052038-
/O.EXP.KGSP.SV.W.0249.000000T0000Z-110605T2030Z/
POLK NC-RUTHERFORD NC-
428 PM EDT SUN JUN 5 2011

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN RUTHERFORD AND
EASTERN POLK COUNTIES WILL EXPIRE AT 430 PM EDT...

AT 428 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED THAT 
THE PREVIOUSLY SEVERE THUNDERSTORM HAD WEAKENED BELOW SEVERE LIMITS 
NEAR THE STATE LINE. WIND GUSTS TO 40 MPH AND PEA SIZE HAIL REMAIN 
POSSIBLE...HOWEVER.

LAT...LON 3544 8192 3534 8173 3519 8184 3519 8203
      3539 8221 3546 8214 3548 8210 3548 8204
      3547 8200
TIME...MOT...LOC 2028Z 342DEG 17KT 3521 8203

$$

HG

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Jun 5, 2:27 PM EDT, 1 hour 10 minutes earlier.

Area forecast discussion, Jun 5, 2:27 PM EDT, 1 hour 10 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
227 PM EDT SUN JUN 5 2011

.SYNOPSIS...
A STORM SYSTEM WILL APPROACH THE NORTH CAROLINA MOUNTAINS FROM THE
WEST TONIGHT. WARM UPPER LEVEL RIDGING WILL STRENGTHEN FROM THE
LOWER MISSISSIPPI VALLEY INTO MID WEEK. A WEAK COLD FRONT WILL
APPROACH FROM THE NORTH NEXT WEEKEND.

&&

.NEAR TERM /THROUGH MONDAY/...
CONVECTIVE TRENDS STILL UNCERTAIN EVEN AT THIS HOUR. GUIDANCE STILL
SUGGESTING A WAVE DROPS ACROSS OUR CWFA IN THE NLY FLOW PROVIDING
SCT COVERAGE NORTH AND EAST...AND ISOLATED AT BEST SW. HOWEVER...
MCS NEAR THE KY/TN BORDER HAS TAKEN A SOUTHWARD TURN. THE MCS COULD
TAKE A SOUTH OR SE TRACK. A SE TRACK WOULD BRING ORGANIZED
CONVECTION OVER THE WRN CWFA WHILE A S TRACK WOULD TAKE IT TO OUR
WEST. TAKING A LOOK AT CURRENT SYSTEM MOVEMENT...CORFIDI VECTORS AND
MEAN H85-H3 WIND...SHOWS THE WRN CWFA MAY BE UNDER THE GUN FROM THIS
SYSTEM. THEREFORE...WILL ADD SCT POP TO THE WESTERN CWFA. LATER
SHIFT HAS A COUPLE OF HOURS TO REFINE THE FCST AND GO WITH HIGHER
POP SHOULD THE SITUATION WARRANT. SEVERE STORMS ARE LIKELY...
ESPECIALLY IF THE MCS MOVES IN TO HELP ORGANIZE THE STORMS.
ATMOSPHERE IS VERY UNSTABLE WITH DCAPE OVER 1000 J/KG AND EFFECTIVE
SHEAR IN THE 20 TO 40 KT RANGE. THE CONVECTION MAY LINGER THRU THE
EVENING AND FINALLY DISSIPATE/MOVE OUT NEAR MIDNIGHT. EXPECT QUITE A
BIT OF DEBRIS CLOUD MUCH OF THE NITE...WITH LOWS AGAIN ABOVE NORMAL.

GUIDANCE SUGGESTS THE ATMOS BECOMES UNSTABLE ONCE AGAIN MONDAY
AFTERNOON AS LOW LEVEL MOISTURE LINGERS ACROSS THE AREA. WITH COOLER
TEMPS IN PLACE...ATMOS APPEARS TO BE CAPPED ACROSS THE NRN CWFA.
HOWEVER...THERE COULD BE SOME WEAK UPSLOPE FLOW AND DIFFERENTIAL
HEATING TO PRODUCE ISOLATED TSRA OVER THE NE GA...UPSTATE AND THE
WRN MTNS. HAVE INCLUDED SLIGHT CHC POP FOR THESE AREAS. HIGHS WILL
BE COOLER...BUT STILL ABOVE NORMAL.

&&

.SHORT TERM /MONDAY NIGHT THROUGH WEDNESDAY/...
AS OF 155 PM SUNDAY...UPPER LEVEL RIDGING REASSERTS ITSELF ACROSS
THE SE CONUS DURING THE SHORT RANGE. MODELS AGREE WELL WITH
MAINTAINING A CLOSED 588 DM HIGH ACROSS MIDDLE TN SHIFTING SLOWLY
EAST TO THE TN/NC BORDER BEGINNING MID DAY TUE THROUGH WED NIGHT.
THERE IS TOO MUCH DIFFERENCE IN THE OP MODELS WRT TO A SE/WARD
DIVING S/W ON THE FRONT END OF THE ANTICYCLONE TO WARRANT MUCH
CONCERN....BUT SOME ENHANCEMENT OF DIURNAL MOUNTAIN CONVEC IS
CERTAINLY POSSIBLE LATER TUE WITH COLD POOL ORGANIZATION PUSHING
TSTMS INTO THE PIEDMONT INTO THE LATE EVENING. SOUNDINGS REMAIN
RATHER BENIGN OUTSIDE THE NC MTNS WITH THE MLVLS REMAINING TOO
WARM...HOWEVER HIGH AMOUNTS OF ELCAPE COULD BE REALIZED IF AN
ORGANIZED MCS GETS GOING ACROSS THE NC MTNS. POPS HAVE BEEN KEPT IN
THE ISOL RANGE FOR TUE EVENING...BUT THIS COULD BE SITUATION TO
WATCH FOR STRONG TO SEVERE POTENTIAL. ON WED...THE UPPER HIGH AND
STRONG NVA WILL HAVE MORE INFLUENCE OVER THE CWFA AND IT WILL BE
LESS LIKELY FOR ANYTHING BUT DIFFERENTIAL HEATING OR MOUNTAIN TOP
CONVECTION FIRING UP. POPS WERE MAINTAINED RIGHT AROUND CLIMO
FOR WED AFTERNOON. MAX TEMPS AGAIN WILL REACH WELL ABOVE
NORMAL...ABOUT 10 ABOVE FOR TUE AND EVEN A COUPLE MORE DEGREES
HOTTER ON WED. MINS WILL AVERAGE ABOUT 10-12 DEGREES ABOVE
NORMAL.

&&

.LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/...
AT 2 PM EDT SUNDAY...AN UPPER RIDGE WILL EXIST OVER THE EASTERN TWO
THIRDS OF THE NATION FROM THURSDAY THROUGH SUNDAY. THIS RIDGE WILL
FLATTEN OVER THE WEEKEND. SURFACE HIGH PRESSURE WILL REMAIN OVER OUR
AREA. A COLD FRONT SETTLES INTO THE POTOMAC RIVER VALLEY BY SUNDAY.
TEMPERATURES WILL BE ABOVE NORMAL...WITH A SLIGHT DECREASE AS
HEIGHTS FALL ALOFT OVER THE WEEKEND. SMALL POPS WILL BE CARRIED
THROUGH THE PERIOD...WITH THE GREATEST COVERAGE DURING DAYTIME
HEATING.

&&

.AVIATION /19Z SUNDAY THROUGH FRIDAY/...
AT KCLT AND ELSEWHERE...CONVECTIVE TRENDS STILL UNCERTAIN ATTM. MCS
NEAR KY/TN BORDER TAKING A SRN JOG AND MAY MISS THE CWFA ENTIRELY.
STILL EXPECTING SOME WAVE TO DIVE INTO THE AREA AND PROVIDE FOCUS
FOR CONVECTION. ATMOS ALREADY VERY UNSTABLE...SO ANY FORCING SHOULD
SET OFF ORGANIZED CONVECTION. THE NC SITES STILL THE MOST LIKELY
LOCATION TO SEE ANY TSRA...SO HAVE KEPT CB THERE. LESS CHC OVER SC
SO NO CB. HAVE ADJUSTED TIMING SLIGHTLY TO LATEST THINKING. N TO NW
WIND OVER NC WITH W TO NW OVER SC THIS AFTERNOON...BECOMES LIGHT NLY
TO NELY THIS EVENING. CONVECTION COULD LINGER THRU MIDNIGHT OR SO...
THEN MAINLY HIGH VFR CIGS EXPECTED. MTN VALLEY FOG EXPECTED ONCE
AGAIN. LIGHT NE WIND WITH DEVELOPING CU EXPECTED THRU THE MORNING
MONDAY.

OUTLOOK...A RETURN TO AN ISOLATED DIURNAL TSTM THREAT MON AFT THRU
THU WITH RIDGING ALOFT. MTN VALLEY FOG POSSIBLE EACH MORNING.

&&

.GSP WATCHES/WARNINGS/ADVISORIES...
GA...NONE.
NC...NONE.
SC...NONE.

&&

SYNOPSIS...SBK
NEAR TERM...RWH
SHORT TERM...SBK
LONG TERM...JAT
AVIATION...RWH
Hazardous weather outlook, Jun 5, 5:54 AM EDT, 9 hours 43 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
554 AM EDT SUN JUN 5 2011

GAZ010-017-018-026-028-029-NCZ033-035>037-048>053-056>059-062>065-
068>072-082-501>510-SCZ001>014-019-061000-
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-
554 AM EDT SUN JUN 5 2011

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

.DAY ONE...TODAY AND TONIGHT.

A WEAK COLD FRONT WILL DROP SOUTH ACROSS THE REGION TODAY.
SCATTERED THUNDERSTORMS WILL DEVELOP ALONG THE FRONT DURING THE
AFTERNOON AND EVENING HOURS. AT LEAST ISOLATED SEVERE WEATHER IS
EXPECTED WITH THESE STORMS...WITH DAMAGING WINDS AND LARGE HAIL
BEING THE PRIMARY THREATS.

.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.

NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME.

.SPOTTER INFORMATION STATEMENT...

NONE.

In the hours before

Special weather statement, Jun 5, 3:33 PM EDT, 4 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE GREENVILLE-SPARTANBURG SC
333 PM EDT SUN JUN 5 2011

NCZ507-508-510-052015-
EASTERN POLK-GREATER RUTHERFORD-RUTHERFORD MOUNTAINS-
333 PM EDT SUN JUN 5 2011

...A STRONG THUNDERSTORM WILL AFFECT EASTERN POLK AND WESTERN
RUTHERFORD COUNTIES THROUGH 415 PM EDT...

AT 333 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
STRONG THUNDERSTORM 5 MILES EAST OF LAKE LURE...OR 12 MILES NORTHWEST
OF RUTHERFORDTON...MOVING SOUTHEAST AT 10 MPH.

THIS STORM WILL BE NEAR...
  RUTHERFORDTON...

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

LAT...LON 3537 8185 3519 8206 3519 8208 3539 8221
      3540 8219 3540 8222 3547 8227 3546 8225
      3550 8223 3553 8217 3552 8214 3554 8205

HG

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 5, 3:33 PM EDTSpecial Weather StatementGSPRutherford42 min
Jun 5, 4:01 PM EDTSpecial Weather StatementGSPJackson44 min
Jun 5, 4:06 PM EDTSpecial Weather StatementGSPCleveland39 min
Jun 5, 4:10 PM EDTSpecial Weather StatementGSPBuncombe50 min
Jun 5, 4:18 PM EDTSpecial Weather StatementGSPPolk42 min
Jun 5, 4:20 PM EDTSpecial Weather StatementGSPAlexander40 min
Jun 5, 4:26 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston64 min
Jun 5, 4:33 PM EDTSpecial Weather StatementGSPIredell42 min
Jun 5, 4:37 PM EDTSevere Thunderstorm WarningGSPPolk53 min
Jun 5, 4:39 PM EDTSevere Thunderstorm WarningGSPAlexander, Catawba, Iredell66 min
Jun 5, 4:42 PM EDTSpecial Weather StatementGSPPolk48 min
Jun 5, 4:45 PM EDTSevere Thunderstorm WarningGSPMcDowell, Polk, Rutherford60 min
Jun 5, 4:51 PM EDTSevere Thunderstorm WarningGSPAlexander, Burke, Caldwell, Catawba54 min
Jun 5, 5:02 PM EDTSevere Thunderstorm WarningGSPTransylvania58 min
Jun 5, 5:16 PM EDTSpecial Weather StatementGSPMadison29 min
Jun 5, 5:34 PM EDTSevere Thunderstorm WarningGSPCatawba, Iredell, Lincoln, Mecklenburg56 min
Jun 5, 5:39 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln66 min
Jun 5, 5:44 PM EDTSevere Thunderstorm WarningGSPBuncombe, Madison61 min
Jun 5, 5:47 PM EDTSpecial Weather StatementGSPLincoln43 min
Jun 5, 5:55 PM EDTSpecial Weather StatementGSPHaywood50 min
Jun 5, 6:02 PM EDTSevere Thunderstorm WarningGSPCleveland, Gaston, Lincoln58 min
Jun 5, 6:12 PM EDTSpecial Weather StatementGSPGraham48 min
Jun 5, 6:13 PM EDTSevere Thunderstorm WarningGSPGaston, Lincoln, Mecklenburg62 min
Jun 5, 6:15 PM EDTSevere Thunderstorm WarningGSPGraham39 min
Jun 5, 6:24 PM EDTSpecial Weather StatementGSPLincoln51 min
Jun 5, 6:33 PM EDTSevere Thunderstorm WarningGSPMitchell, Yancey57 min
Jun 5, 6:49 PM EDTSevere Thunderstorm WarningGSPGaston, Mecklenburg, Union56 min
Jun 5, 7:02 PM EDTSpecial Weather StatementGSPYancey28 min
Jun 5, 7:31 PM EDTSpecial Weather StatementGSPMcDowell44 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2011Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.