Alert archive / South Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Wilmington, NC

October 23, 2017Florence County, Williamsburg County, South Carolina

NWS Wilmington, NC issued this special weather statement at Oct 23, 2017, 8:11 PM EDT for Florence County, Williamsburg County, South Carolina. It was in force for 49 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: Oct 23, 2017, 8:11 PM EDT (00:11 UTC)
Expired: Oct 23, 2017, 9:00 PM EDT
In force: 49 min
Issued by: NWS Wilmington, NC

Counties Florence County, SC, Williamsburg County, SC

The radar

The Columbia radar (KCAE), 115 km from the middle of the area, began a volume at 00:10 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, 0.2 hours before the alert went out and 90 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: 659 J/kg
Mixed-layer CIN: -15 J/kg
Mixed-layer LCL: 835 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 334 m²/s²
0-3 km storm-relative helicity: 424 m²/s²
Significant tornado parameter: 0.8
Supercell composite: 8.9

Open this sounding in Storm Lab

The text

As transmitted.

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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 Wilmington, NC wrote its last area forecast discussion before this special weather statement went out at Oct 23, 7:44 PM EDT, 27 minutes earlier.

Area forecast discussion, Oct 23, 7:44 PM EDT, 27 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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Hazardous weather outlook, Oct 23, 3:29 PM EDT, 4 hours 42 minutes before

Hazardous Weather Outlook
National Weather Service Wilmington NC
329 PM EDT Mon Oct 23 2017

NCZ087-096-099-105-107-109-SCZ017-023-024-032-033-039-053-055-241930-
Robeson-Bladen-Columbus-Inland Pender-Inland New Hanover-
Inland Brunswick-Marlboro-Darlington-Dillon-Florence-Marion-
Williamsburg-Inland Horry-Inland Georgetown-
329 PM EDT Mon Oct 23 2017

This Hazardous Weather Outlook is for southeast North Carolina and
northeast South Carolina.

.DAY ONE...This Afternoon and Tonight.

Severe thunderstorms are possible tonight. The main threats will be
damaging winds and isolated tornadoes.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

AMZ250-252-254-256-241930-
Coastal waters from Surf City to Cape Fear NC out 20 nm-
Coastal waters from Cape Fear NC to Little River Inlet SC out 20 nm-
Coastal waters from Little River Inlet to Murrells Inlet SC out
20 nm-
Coastal waters from Murrells Inlet to South Santee River SC out
20 nm-
329 PM EDT Mon Oct 23 2017

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM EDT TUESDAY...

This Hazardous Weather Outlook is for The adjacent Coastal Waters.

.DAY ONE...This Afternoon and Tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Small Craft Advisory.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Small Craft Advisory.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ106-108-110-SCZ054-056-241930-
Coastal Pender-Coastal New Hanover-Coastal Brunswick-Coastal Horry-
Coastal Georgetown-
329 PM EDT Mon Oct 23 2017

...MODERATE RISK OF RIP CURRENTS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...
...MODERATE RISK OF RIP CURRENTS IN EFFECT FROM TUESDAY MORNING
THROUGH TUESDAY EVENING...

This Hazardous Weather Outlook is for southeast North Carolina and
northeast South Carolina.

.DAY ONE...This Afternoon and 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.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

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.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Oct 23, 5:49 PM EDT, 2 hours 22 minutes before

Special Weather Statement
National Weather Service Wilmington NC
549 PM EDT MON OCT 23 2017

SCZ017-023-232245-
Marlboro SC-Darlington SC-
549 PM EDT MON OCT 23 2017

...SPECIAL WEATHER STATEMENT FOR DARLINGTON AND CENTRAL MARLBORO
COUNTIES UNTIL 645 PM EDT...

At 549 PM EDT, Doppler radar was tracking a strong thunderstorm over
Oates, or 9 miles south of Hartsville, moving north at 40 mph.

Winds in excess of 40 mph will be possible with this storm.

Locations impacted include...
Hartsville, Darlington, Lamar, North Hartsville, Dovesville, Mont
Clare, Lydia, Auburn, Darlington Raceway, Clyde, Mechanicsville,
Oates, Floyd, Kellytown, Florence Darlington Technical College Main
Campus, Society Hill, Blenheim, Mcleod Medical Center and Carolina
Pines Regional Medical Center.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 storm passes.

&&

LAT...LON 3449 8005 3449 8002 3450 7999 3449 7996
      3449 7988 3452 7986 3453 7983 3460 7980
      3455 7958 3424 7982 3414 7998 3417 8015
      3420 8011 3423 8011 3428 8013 3433 8018
      3436 8018 3437 8019 3433 8024 3437 8029
TIME...MOT...LOC 2149Z 188DEG 43KT 3423 8004

SHK

Special weather statement, Oct 23, 6:17 PM EDT, 1 hour 54 minutes before

Special Weather Statement
National Weather Service Wilmington NC
617 PM EDT MON OCT 23 2017

NCZ087-232245-
Robeson NC-
617 PM EDT MON OCT 23 2017

...SPECIAL WEATHER STATEMENT FOR NORTHERN ROBESON COUNTY UNTIL 645 PM
EDT...

At 610 PM EDT, Doppler radar was tracking an area of light to
moderate rains with embedded heavier showers moving across northern
Robeson County. The area extended north of a line that runs from Red
Springs to St. Pauls. The activity is racing to the northeast in
excess of 50 mph.

Expect winds in excess of 40 mph associated with the embedded
heavier showers.

Locations impacted include...
Red Springs, Pembroke, Maxton, St. Pauls, Buie, Wakulla, Rex,
Prospect, Shannon, Parkton, Rennert and Lumber Bridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 storm passes.

&&

LAT...LON 3490 7894 3488 7892 3486 7893 3483 7890
      3463 7906 3474 7937 3477 7933 3482 7936
      3484 7935 3483 7919 3495 7903
TIME...MOT...LOC 2210Z 219DEG 61KT 3479 7928

DCH

Special weather statement, Oct 23, 8:11 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service Wilmington NC
811 PM EDT MON OCT 23 2017

SCZ032-033-039-240100-
Marion SC-Williamsburg SC-Florence SC-
811 PM EDT MON OCT 23 2017

...SPECIAL WEATHER STATEMENT FOR SOUTHERN FLORENCE...SOUTHWESTERN
MARION AND WILLIAMSBURG COUNTIES UNTIL 900 PM EDT...

At 806 PM EDT, Doppler radar was tracking a cluster of thunderstorms
moving northeast at 45 mph that had reached a line extending from
Nixonville to Kingstree.

Winds in excess of 40 mph will be possible with these storms.

Locations impacted include...
Lake City, Kingstree, Johnsonville, Pamplico, Hemingway, Cades,
Poston, Brittons Neck, Indiantown, Gresham, Hebron, New Hope,
Salters, Hyman, Hannah, Gourdin, Friendfield, Kingsburg, Evergreen
and Scranton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 storm passes.

&&

LAT...LON 3372 7998 3377 7999 3381 7994 3382 7991
      3388 7988 3388 7994 3392 7996 3416 7950
      3383 7926 3346 7991 3350 7996 3350 7999
      3351 8000 3350 8000 3351 8008 3350 8010
TIME...MOT...LOC 0006Z 239DEG 40KT 3367 7993

DCH

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 23, 9:05 PM EDT	Special Weather Statement	ILM	Florence	40 min
Oct 23, 9:26 PM EDT	Severe Thunderstorm Warning	ILM	Horry	49 min
Oct 23, 9:57 PM EDT	Severe Thunderstorm Warning	ILM	Horry	38 min
Oct 23, 10:06 PM EDT	Special Weather Statement	ILM	Horry	24 min
Oct 23, 10:20 PM EDT	Tornado Warning	ILM	Horry	25 min
Oct 23, 10:27 PM EDT	Special Weather Statement	ILM	Dillon	63 min
Oct 24, 12:35 AM EDT	Special Marine Warning	ILM		55 min
Oct 24, 12:46 AM EDT	Special Marine Warning	ILM		59 min
Oct 24, 1:46 AM EDT	Special Marine Warning	ILM		89 min
Oct 23, 10:08 PM EDT	Special Weather Statement	ILM	Columbus	67 min
Oct 23, 10:18 PM EDT	Special Weather Statement	ILM	Pender	57 min
Oct 23, 11:45 PM EDT	Special Weather Statement	ILM	Brunswick, New Hanover, Pender	60 min
Oct 23, 11:46 PM EDT	Tornado Warning	ILM	Brunswick, Pender	33 min
Oct 24, 12:50 AM EDT	Special Weather Statement	ILM	New Hanover, Pender	40 min

Nearby

Special Weather Statements in South Carolina, 2017 Every special weather statement in 2017

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.