Alert archive / South Carolina / Severe Thunderstorm Warnings in 2011

Severe Thunderstorm Warning 77, NWS Wilmington, NC

June 21, 2011Marlboro County, South Carolina

NWS Wilmington, NC issued this severe thunderstorm warning at Jun 21, 2011, 11:25 PM EDT for Marlboro County, South Carolina. It was in force for 33 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jun 21, 2011, 11:25 PM EDT (03:25 UTC)
Expired: Jun 21, 2011, 11:58 PM EDT
In force: 33 min
Issued by: NWS Wilmington, NC
Area: Storm-based polygon

County Marlboro County, SC

The radar

The Wilmington radar (KLTX), 134 km from the middle of the area, began a volume at 03:27 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, 3.4 hours before the alert went out and 166 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: 1052 J/kg
Mixed-layer CIN: -32 J/kg
Mixed-layer LCL: 2000 m above ground
0-6 km bulk shear: 10 kt
0-1 km storm-relative helicity: 19 m²/s²
0-3 km storm-relative helicity: 19 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

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 Wilmington, NC wrote its last area forecast discussion before this severe thunderstorm warning went out at Jun 21, 10:48 PM EDT, 37 minutes earlier.

Area forecast discussion, Jun 21, 10:48 PM EDT, 37 minutes before

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Hazardous weather outlook, Jun 21, 10:11 PM EDT, 1 hour 14 minutes before

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In the hours before

Special weather statement, Jun 21, 7:07 PM EDT, 4 hours 18 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
707 PM EDT TUE JUN 21 2011

NCZ105-106-221300-
INLAND PENDER-COASTAL PENDER-
INCLUDING THE CITIES OF...BURGAW...SURF CITY...TOPSAIL BEACH
707 PM EDT TUE JUN 21 2011

...A LARGE FIRE IN HOLLY SHELTER GAME LAND WILL CONTINUE TO PRODUCE
HEAVY SMOKE THROUGH THE NIGHT...

HEAVY SMOKE WILL BE IN THE AIR THROUGH WEDNESDAY MORNING...THICKEST
IN THE VICINITY OF THE FIRE. AS A LOW LEVEL INVERSION FORMS THIS
EVENING...SMOKE WILL BE TRAPPED NEAR THE GROUND. THIS SMOKE WILL
SIGNIFICANTLY LOWER VISIBILITIES WITHIN A 10 MILE RADIUS OF THE
FIRE. LATE TONIGHT...VISIBILITIES MAY DROP TO A QUARTER MILE OR
LESS IN CLOSE PROXIMITY TO THE FIRE. A DENSE SMOKE ADVISORY MAY BE
ISSUED LATER THIS EVENING FOR PENDER COUNTY.

MAJOR ROADWAYS THAT ARE EXPECTED TO BE IMPACTED BY REDUCED
VISIBILITIES TONIGHT AND WEDNESDAY MORNING INCLUDE HIGHWAY
17...FROM HAMPSTEAD TO SURF CITY AND EDGECOMB...HIGHWAY 53 NEAR
MAPLE HILL...AND HIGHWAY 210 FROM HAMPSTEAD TOWARD ROCKY POINT.

AN AIR QUALITY ALERT HAS BEEN ISSUED THROUGH WEDNESDAY AFTERNOON
FOR VERY UNHEALTHY AIR QUALITY.

RJD

Special weather statement, Jun 21, 9:18 PM EDT, 2 hours 7 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
918 PM EDT TUE JUN 21 2011

SCZ017-220145-
MARLBORO-
918 PM EDT TUE JUN 21 2011

...STRONG THUNDERSTORMS OVER MARLBORO COUNTY...

AT 917 PM EDT...STRONG THUNDERSTORMS WERE...4 MILES SOUTHEAST OF
CHAVISTOWN...OR 2 MILES WEST OF BENNETTSVILLE...MOVING NORTHEAST AT
15 MPH.

THESE THUNDERSTORMS HAVE THE CAPABILITY OF PRODUCING SMALL
HAIL...GUSTY WINDS UP TO 40 MPH AND FREQUENT DANGEROUS LIGHTNING.
VERY HEAVY RAINFALL IS ALSO LIKELY CAUSING STANDING WATER ON ROUTES
9 AND 38 NORTH OF BENNETTSVILLE.

COMMUNITIES IN THE PATH OF THESE STORMS ARE BENNETTSVILLE...
CHAVISTOWN...MCCOLL AND TATUM.

STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR FURTHER DETAILS OR
UPDATES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT
WEATHER.GOV/ILM.

LAT...LON 3463 7946 3452 7976 3460 7981 3461 7980
      3461 7979 3462 7978 3465 7982 3465 7983
      3468 7986 3481 7967

MBB

Special weather statement, Jun 21, 9:45 PM EDT, 1 hour 40 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
945 PM EDT TUE JUN 21 2011

NCZ087-220245-
ROBESON-
945 PM EDT TUE JUN 21 2011

...STRONG THUNDERSTORM WINDS REACHING INTO NORTHERN ROBESON COUNTY...

AT 943 PM EDT...A STRONG THUNDERSTORM WAS...3 MILES WEST OF
WAKULLA...OR 6 MILES NORTH OF RED SPRINGS...MOVING NORTHEAST AT 15
MPH.

ALTHOUGH THE STRONGEST PART OF THIS SEVERE THUNDERSTORM IS IN HOKE
COUNTY IT APPEARS THAT STRONG WIND GUSTS TO 40 MPH MAY BE
PROPAGATING TO THE SOUTH INTO EXTREME NORTHERN ROBESON COUNTY.
THIS GUST OF WIND IS ALSO EXPECTED TO DEVELOP SOME HEAVY RAINFALL
AND POSSIBLE STRONG TO SEVERE STORMS IN THE SAME REGION.

COMMUNITIES IN THE PATH OF THESE WINDS ARE RED SPRINGS...ALMA...
MAXTON...REX...SEVEN BRIDGES...SHANNON...WAKULLA...LUMBER BRIDGE...
PARKTON AND RENNERT.

STAY TUNED TO NOAA WEATHER RADIO ALL HAZARDS FOR FURTHER DETAILS OR
UPDATES. FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT
WEATHER.GOV/ILM.

LAT...LON 3492 7897 3489 7892 3485 7891 3461 7944
      3463 7947 3477 7934 3482 7936 3484 7935
      3484 7919 3496 7904

MBB

Special weather statement, Jun 21, 10:48 PM EDT, 37 minutes before

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Special weather statement, Jun 21, 11:18 PM EDT, 7 minutes before

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The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 21, 9:18 PM EDT	Special Weather Statement	ILM	Marlboro	27 min
Jun 21, 11:18 PM EDT	Special Weather Statement	ILM	Marlboro	27 min
Jun 21, 11:51 PM EDT	Areal Flood Advisory	ILM	Darlington, Marlboro	114 min
Jun 22, 12:22 AM EDT	Special Weather Statement	ILM	Dillon	68 min
Jun 22, 1:41 AM EDT	Special Weather Statement	ILM	Darlington, Florence	79 min
Jun 22, 2:26 AM EDT	Special Weather Statement	ILM	Dillon, Florence	49 min
Jun 22, 3:33 AM EDT	Heat Advisory	ILM	Florence, Georgetown, Horry, Marion, Williamsburg	15 hr
Jun 22, 5:27 PM EDT	Special Weather Statement	ILM	Marlboro	48 min
Jun 21, 9:30 PM EDT	Dense Smoke Advisory	ILM	Pender	4 days
Jun 21, 9:45 PM EDT	Special Weather Statement	ILM	Robeson	60 min
Jun 21, 10:48 PM EDT	Special Weather Statement	ILM	Bladen	57 min
Jun 22, 1:05 AM EDT	Special Weather Statement	ILM	Bladen, Columbus, Robeson	85 min
Jun 22, 5:38 PM EDT	Special Weather Statement	ILM	Bladen, Columbus	67 min
Jun 22, 5:58 PM EDT	Severe Thunderstorm Warning	ILM	Bladen, Columbus	43 min
Jun 22, 6:25 PM EDT	Severe Thunderstorm Warning	ILM	Bladen	65 min
Jun 22, 6:57 PM EDT	Special Weather Statement	ILM	Bladen	63 min
Jun 22, 7:22 PM EDT	Severe Thunderstorm Warning	ILM	Bladen, Columbus	53 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2011 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.