Alert archive / South Carolina / Special Weather Statements in 2011

Special Weather Statement, NWS Wilmington, NC

August 21, 2011Darlington County, Dillon County, Florence County, South Carolina

NWS Wilmington, NC issued this special weather statement at Aug 21, 2011, 11:02 PM EDT for Darlington County, Dillon County, Florence County, South Carolina. It was in force for 58 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: Aug 21, 2011, 11:02 PM EDT (03:02 UTC)
Expired: Aug 22, 2011, 12:00 AM EDT
In force: 58 min
Issued by: NWS Wilmington, NC

Counties Darlington County, SC, Dillon County, SC, Florence County, SC

The radar

The Columbia radar (KCAE), 121 km from the middle of the area, began a volume at 03:04 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

Charleston AFB, SC (KCHS), launched 00:00Z, 3.0 hours before the alert went out and 140 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: 1744 J/kg
Mixed-layer CIN: -43 J/kg
Mixed-layer LCL: 1037 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 18 m²/s²
0-3 km storm-relative helicity: 52 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.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

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 Wilmington, NC wrote its last area forecast discussion before this special weather statement went out at Aug 21, 10:28 PM EDT, 34 minutes earlier.

Area forecast discussion, Aug 21, 10:28 PM EDT, 34 minutes before

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Service Notice</title>
  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
      </p>
      <p class="small" id="detail">
        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
      </p>
    </section>
  </main>
  <script src="index.js"></script>
</body>
</html>

Hazardous weather outlook, Aug 21, 4:12 PM EDT, 6 hours 50 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE WILMINGTON NC
412 PM EDT SUN AUG 21 2011

NCZ087-096-099-105-107-109-SCZ017-023-024-032-033-039-053-055-222015-
ROBESON-BLADEN-COLUMBUS-INLAND PENDER-INLAND NEW HANOVER-
INLAND BRUNSWICK-MARLBORO-DARLINGTON-DILLON-FLORENCE-MARION-
WILLIAMSBURG-INLAND HORRY-INLAND GEORGETOWN-
412 PM EDT SUN AUG 21 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH CAROLINA AND
NORTHEAST SOUTH CAROLINA.

.DAY ONE...TONIGHT.

A FEW STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH THIS EVENING.
THE PRIMARY THREATS ARE DAMAGING WINDS AND HAIL.

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

NO DEFINITE HAZARDS ARE EXPECTED. TROPICAL CYCLONE IRENE IMPACTS
REMAIN UNCERTAIN...BUT SHOULD BE MONITORED CLOSELY IN THE UPCOMING
DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ110-SCZ054-056-222015-
COASTAL BRUNSWICK-COASTAL HORRY-COASTAL GEORGETOWN-
412 PM EDT SUN AUG 21 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH CAROLINA AND
NORTHEAST SOUTH CAROLINA.

.DAY ONE...TONIGHT.

A FEW STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH THIS EVENING.
THE PRIMARY THREATS ARE DAMAGING WINDS AND HAIL.

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

NO DEFINITE HAZARDS ARE EXPECTED. TROPICAL CYCLONE IRENE IMPACTS
REMAIN UNCERTAIN...BUT SHOULD BE MONITORED CLOSELY IN THE UPCOMING
DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

NCZ106-108-222015-
COASTAL PENDER-COASTAL NEW HANOVER-
412 PM EDT SUN AUG 21 2011

...MODERATE RISK OF RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST NORTH CAROLINA.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

MODERATE RISK OF RIP CURRENTS.

A FEW STRONG TO SEVERE THUNDERSTORMS ARE POSSIBLE THROUGH THIS EVENING.
THE PRIMARY THREATS ARE DAMAGING WINDS AND HAIL.

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

NO DEFINITE HAZARDS ARE EXPECTED. TROPICAL CYCLONE IRENE IMPACTS
REMAIN UNCERTAIN...BUT SHOULD BE MONITORED CLOSELY IN THE UPCOMING
DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

AMZ250-252-254-256-222015-
SURF CITY TO CAPE FEAR NC OUT 20 NM-
CAPE FEAR NC TO LITTLE RIVER INLET SC OUT 20 NM-
LITTLE RIVER INLET TO MURRELLS INLET SC OUT 20 NM-
MURRELLS INLET TO SOUTH SANTEE RIVER SC OUT 20 NM-
412 PM EDT SUN AUG 21 2011

...SMALL CRAFT SHOULD EXERCISE CAUTION FROM MIDNIGHT EDT TONIGHT
THROUGH MONDAY MORNING...

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ADJACENT COASTAL WATERS.

.DAY ONE...TONIGHT.

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

SMALL CRAFT EXERCISE CAUTION.

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

PLEASE LISTEN TO NOAA WEATHER RADIO OR GO TO WEATHER.GOV ON THE
INTERNET FOR MORE INFORMATION ABOUT THE FOLLOWING HAZARDS.

SMALL CRAFT EXERCISE CAUTION.

NO DEFINITE HAZARDS ARE EXPECTED. TROPICAL CYCLONE IRENE IMPACTS
REMAIN UNCERTAIN...BUT SHOULD BE MONITORED CLOSELY IN THE UPCOMING
DAYS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

8

In the hours before

Special weather statement, Aug 21, 7:59 PM EDT, 3 hours 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
759 PM EDT SUN AUG 21 2011

NCZ106>108-220030-
COASTAL NEW HANOVER-COASTAL PENDER-INLAND NEW HANOVER-
759 PM EDT SUN AUG 21 2011

...A STRONG THUNDERSTORM WILL MOVE ACROSS NEW HANOVER AND PENDER
COUNTIES THROUGH 830 PM EDT...

AT 759 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM OVER
WRIGHTSBORO...OR ABOUT OVER WILMINGTON...MOVING EAST AT 20 MPH.

SOME LOCATIONS IMPACTED INCLUDE WILMINGTON...BAYSHORE...CASTLE
HAYNE...OGDEN...SEAGATE...SMITH CREEK...WINDEMERE AND WRIGHTSBORO.

HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH.

THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS...
SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT
IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS.

&&

LAT...LON 3419 7785 3419 7796 3424 7796 3426 7799
      3427 7800 3428 7799 3428 7800 3437 7798
      3437 7794 3436 7794 3437 7793 3436 7781
      3431 7777 3435 7772 3434 7768
TIME...MOT...LOC 2359Z 281DEG 19KT 3427 7790

15

Special weather statement, Aug 21, 9:59 PM EDT, 1 hour 3 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
959 PM EDT SUN AUG 21 2011

NCZ087-220300-
ROBESON-
959 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL MOVE ACROSS ROBESON COUNTY THROUGH 1100
PM EDT...

AT 958 PM EDT...DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS OVER MAXTON...OR ABOUT OVER LAURINBURG...MOVING EAST AT
20 MPH.

SOME LOCATIONS IMPACTED INCLUDE LUMBERTON...RED SPRINGS...ALMA...
BARKER TEN MILE...BARNESVILLE...BUIE...ELROD...FAIRMONT...
HESTERTOWN...HOWELLSVILLE...MAXTON AND PEMBROKE.

HAZARDS INCLUDE...
GUSTY WINDS OF 40 TO 50 MPH.
AN EXCESSIVE AMOUNT OF CLOUD TO GROUND LIGHTNING.
HEAVY RAINFALL AND MINOR FLOODING.

THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS...
SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT
IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS.

&&

LAT...LON 3495 7902 3490 7893 3474 7885 3470 7881
      3467 7881 3457 7885 3455 7885 3430 7907
      3463 7946 3478 7932 3484 7922 3485 7918
TIME...MOT...LOC 0158Z 272DEG 19KT 3473 7937

15

Special weather statement, Aug 21, 10:02 PM EDT, 1 hour before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1002 PM EDT SUN AUG 21 2011

SCZ017-023-024-032-033-220300-
DARLINGTON-DILLON-FLORENCE-MARION-MARLBORO-
1002 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL MOVE ACROSS FLORENCE...MARION...
DILLON...MARLBORO AND DARLINGTON COUNTIES THROUGH 1100 PM EDT...

AT 1001 PM EDT...DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS OVER BENNETTSVILLE...MOVING EAST...SOUTHEAST AT 20 MPH.

SOME LOCATIONS IMPACTED INCLUDE BENNETTSVILLE...DARLINGTON...
DILLON...FLORENCE...HARTSVILLE...LAKE CITY...MARION...MULLINS...
AUBURN...BINGHAM...BLUE BRICK AND BROWNSVILLE.

HAZARDS INCLUDE...
GUSTY WINDS OF 40 TO 50 MPH.

AN EXCESSIVE AMOUNT OF CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS...
SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT
IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS.

&&

LAT...LON 3450 8005 3449 7988 3462 7978 3468 7986
      3474 7990 3481 7971 3473 7957 3430 7908
      3422 7913 3384 7976 3383 7980 3389 7985
      3390 7996 3395 7998 3399 7990 3414 8015
      3423 8012 3436 8018 3432 8024 3437 8029
TIME...MOT...LOC 0201Z 272DEG 19KT 3462 7969

15

Local storm report, Aug 21, 10:22 PM EDT, 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE WILMINGTON NC
1022 PM EDT SUN AUG 21 2011

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

0932 PM     TSTM WND DMG     2 SSW BENNETTSVILLE     34.61N  79.70W
08/21/2011                   MARLBORO           SC   911 CALL CENTER

            LARGE TREE DOWN ACROSS SC HIGHWAY 9. TIME ESTIMATED
            BASED OFF RADAR.

&&

EVENT NUMBER ILM1100516

WEISS

Special weather statement, Aug 21, 11:01 PM EDT, 1 minute before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1101 PM EDT SUN AUG 21 2011

NCZ087-096-099-109-220400-
BLADEN-COLUMBUS-INLAND BRUNSWICK-ROBESON-
1101 PM EDT SUN AUG 21 2011

...A STRONG THUNDERSTORM WILL MOVE ACROSS BRUNSWICK...BLADEN...
COLUMBUS AND ROBESON COUNTIES THROUGH MIDNIGHT EDT...

AT 1101 PM EDT...DOPPLER RADAR INDICATED A STRONG THUNDERSTORM 5
MILES WEST OF BLADENBORO...OR ABOUT 9 MILES SOUTHEAST OF LUMBERTON...
MOVING SOUTHEAST AT 25 MPH.

SOME LOCATIONS IMPACTED INCLUDE ELIZABETHTOWN...WHITEVILLE...
ABBOTTSBURG...BARNESVILLE...BETHEL...BLADENBORO...BOARDMAN...
BUGHILL...CARVERS...CHADBOURN...CLARENDON AND COUNCIL.

HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH.

FREQUENT CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS...
SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT
IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS.

&&

LAT...LON 3456 7825 3453 7827 3451 7825 3399 7859
      3437 7908 3468 7892
TIME...MOT...LOC 0301Z 297DEG 21KT 3456 7887

15

Special weather statement, Aug 21, 11:02 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
1102 PM EDT SUN AUG 21 2011

SCZ017-023-024-032-033-220400-
DARLINGTON-DILLON-FLORENCE-MARION-MARLBORO-
1102 PM EDT SUN AUG 21 2011

...STRONG THUNDERSTORMS WILL MOVE ACROSS FLORENCE...MARION...
DILLON...MARLBORO AND DARLINGTON COUNTIES THROUGH MIDNIGHT EDT...

AT 1102 PM EDT...DOPPLER RADAR INDICATED A LINE OF STRONG
THUNDERSTORMS 6 MILES SOUTHWEST OF BLENHEIM...OR ABOUT 13 MILES SOUTH
OF BENNETTSVILLE...MOVING SOUTHEAST AT 25 MPH.

SOME LOCATIONS IMPACTED INCLUDE DARLINGTON...DILLON...FLORENCE...
HARTSVILLE...MARION...AUBURN...BINGHAM...BLUE BRICK...BROWNSVILLE...
CLAUSSEN...DOVESVILLE AND DUNBAR.

HAZARDS INCLUDE...
GUSTY WINDS OF 30 TO 40 MPH.

AN EXCESSIVE AMOUNT OF CLOUD TO GROUND LIGHTNING.

HEAVY RAINFALL AND MINOR FLOODING.

THUNDERSTORMS CAN POSE A VARIETY OF THREATS INCLUDING GUSTY WINDS...
SMALL HAIL...CLOUD TO GROUND LIGHTNING...AND LOCALIZED FLOODING. IT
IS RECOMMENDED THAT YOU REMAIN INDOORS UNTIL THE STORMS PASS.

&&

LAT...LON 3435 8014 3460 7959 3433 7911 3388 7983
      3388 7988 3397 7993 3399 7990 3402 7996
TIME...MOT...LOC 0302Z 297DEG 21KT 3444 7970

15

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 21, 9:07 PM EDT	Severe Thunderstorm Warning	ILM	Marlboro	53 min
Aug 21, 10:02 PM EDT	Special Weather Statement	ILM	Darlington, Dillon, Florence, Marlboro	58 min
Aug 21, 11:28 PM EDT	Areal Flood Advisory	ILM	Darlington, Dillon, Marlboro	2 hr
Aug 22, 12:14 AM EDT	Areal Flood Advisory	ILM	Dillon	2 hr
Aug 22, 1:31 AM EDT	Special Weather Statement	ILM	Dillon, Horry, Marion, Marlboro	59 min
Aug 22, 2:15 AM EDT	Areal Flood Warning	ILM	Darlington, Dillon, Marion, Marlboro	98 min
Aug 22, 2:45 PM EDT	Special Weather Statement	ILM	Georgetown	60 min
Aug 22, 4:23 PM EDT	Special Marine Warning	ILM		67 min
Aug 22, 4:24 PM EDT	Special Marine Warning	ILM		45 min
Aug 22, 4:29 PM EDT	Special Marine Warning	ILM		61 min
Aug 22, 5:02 PM EDT	Special Marine Warning	ILM		58 min
Aug 22, 5:54 PM EDT	Severe Thunderstorm Warning	ILM	Georgetown, Williamsburg	36 min
Aug 21, 9:59 PM EDT	Special Weather Statement	ILM	Robeson	61 min
Aug 21, 10:07 PM EDT	Severe Thunderstorm Warning	ILM	Robeson	53 min
Aug 21, 11:01 PM EDT	Special Weather Statement	ILM	Bladen, Columbus	59 min
Aug 22, 3:25 PM EDT	Special Weather Statement	ILM	Pender	35 min
Aug 22, 4:45 PM EDT	Tornado Warning	ILM	New Hanover	30 min
Aug 22, 5:21 PM EDT	Special Weather Statement	ILM	Brunswick	54 min
Aug 22, 5:36 PM EDT	Areal Flood Advisory	ILM	New Hanover	84 min
Aug 22, 6:21 PM EDT	Areal Flood Advisory	ILM	Brunswick	114 min

Nearby

Special Weather Statements in South Carolina, 2011 Every 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.