Alert archive / South Carolina / Special Weather Statements in 2019

Special Weather Statement, NWS Columbia, SC

August 4, 2019Clarendon County, South Carolina

NWS Columbia, SC issued this special weather statement at Aug 4, 2019, 2:10 PM EDT for Clarendon County, South Carolina. It was in force for 35 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 4, 2019, 2:10 PM EDT (18:10 UTC)
Expired: Aug 4, 2019, 2:45 PM EDT
In force: 35 min
Issued by: NWS Columbia, SC

County Clarendon County, SC

The radar

The Columbia radar (KCAE), 98 km from the middle of the area, began a volume at 18:10 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 12:00Z, 6.2 hours before the alert went out and 62 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: 561 J/kg
Mixed-layer CIN: -46 J/kg
Mixed-layer LCL: 816 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: -20 m²/s²
0-3 km storm-relative helicity: 20 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.5

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 Columbia, SC wrote its last area forecast discussion before this special weather statement went out at Aug 4, 1:37 PM EDT, 33 minutes earlier.

Area forecast discussion, Aug 4, 1:37 PM EDT, 33 minutes before

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Hazardous weather outlook, Aug 4, 8:20 AM EDT, 5 hours 50 minutes before

Hazardous Weather Outlook
National Weather Service Columbia SC
820 AM EDT Sun Aug 4 2019

GAZ040-063>065-077-SCZ016-018-020>022-025>031-035>038-041-115-116-
051230-
Lincoln-McDuffie-Columbia-Richmond-Burke-Chesterfield-McCormick-
Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-Richland-Lee-
Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-Bamberg-
Northern Lancaster-Southern Lancaster-
820 AM EDT Sun Aug 4 2019

This Hazardous Weather Outlook is for the Midlands of South Carolina
and the Central Savannah River area of Georgia.

.DAY ONE...Today and tonight.
Numerous showers and thunderstorms will occur today and this evening.
Heavy rainfall will occur with some of the showers which may result
in localized flooding.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Numerous showers and thunderstorms will occur Monday. Heavy rainfall
will occur with some of the showers which may result in localized
flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Aug 4, 10:17 AM EDT, 3 hours 53 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
1017 AM EDT SUN AUG 4 2019

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

1010 AM     FLOOD            3 SSE MARTINEZ          33.48N 82.06W
08/04/2019                   RICHMOND           GA   911 CALL CENTER

            RICHMOND COUNTY DISPATCH REPORTS FLOODING
            WITH UP TO 2.5 FEET OF WATER NEAR THE
            INTERSECTION OF WALTON WAY AND RAVENEL ROAD.
            NO ROAD CLOSURES REPORTED.

&&

JAQ

Special weather statement, Aug 4, 11:29 AM EDT, 2 hours 41 minutes before

Special Weather Statement
National Weather Service Columbia SC
1129 AM EDT Sun Aug 4 2019

SCZ035-036-041-041600-
Orangeburg SC-Barnwell SC-Bamberg SC-
1129 AM EDT Sun Aug 4 2019

...Strong Thunderstorms Will Impact Portions of northwestern
Orangeburg...Barnwell and western Bamberg Counties Until noon EDT....

At 1129 AM EDT...National Weather Service doppler radar indicated
strong thunderstorms along a line extending from Williston to near
Appleton, moving east at 15 mph.

  HAZARD...gusty winds 40 to 50 mph and localized minor flooding.

  IMPACT...expect minor damage to tree limbs and blowing around of
           light, unsecured objects. Localized minor flooding of low
           lying and poor drainage areas is also possible.

Some locations in the path of these storms include...
Barnwell, Denmark, Williston, Blackville, Barnwell State Park, Rivers
Bridge State Park, Springfield, Hilda, Norway, Snelling, Olar, Kline,
Elko, Govan and Barnwell County Airport.

Torrential rainfall is occurring with these storms, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 3303 8108 3312 8119 3311 8136 3314 8146
      3340 8149 3366 8116
TIME...MOT...LOC 1529Z 274DEG 12KT 3341 8140 3310 8136

JAQ

Special weather statement, Aug 4, 12:14 PM EDT, 1 hour 56 minutes before

Special Weather Statement
National Weather Service Columbia SC
1214 PM EDT Sun Aug 4 2019

SCZ035-036-041-041645-
Orangeburg SC-Barnwell SC-Bamberg SC-
1214 PM EDT Sun Aug 4 2019

...Strong Thunderstorms Will Impact Portions of southwestern
Orangeburg...east central Barnwell and Bamberg Counties Until 1245 PM
EDT....

At 1213 PM EDT...National Weather Service doppler radar indicated
strong thunderstorms along a line extending from near Denmark to near
Rivers Bridge State Park, moving east at 20 mph.

  HAZARD...gusty winds 40 to 50 mph and localized minor flooding.

  IMPACT...expect minor damage to tree limbs and blowing around of
           light, unsecured objects. Localized minor flooding of low
           lying and poor drainage areas is also possible.

Some locations in the path of these storms include...
Orangeburg, Bamberg, Denmark, Branchville, Orangeburg County Airport,
Rivers Bridge State Park, Edisto Gardens, Ehrhardt, Norway,
Rowesville, Olar, Cordova, Cope, Govan, Edisto, Bamberg County
Airport and Wilkinson Heights.

Torrential rainfall is occurring with these storms, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

LAT...LON 3305 8110 3306 8113 3312 8119 3312 8122
      3346 8123 3349 8079 3317 8080 3312 8089
      3309 8088 3306 8090 3307 8092 3310 8094
      3303 8108
TIME...MOT...LOC 1613Z 278DEG 17KT 3338 8115 3304 8114

JAQ

Special weather statement, Aug 4, 12:30 PM EDT, 1 hour 40 minutes before

Special Weather Statement
National Weather Service Columbia SC
1230 PM EDT Sun Aug 4 2019

SCZ022-028-029-031-041700-
Sumter SC-Richland SC-Kershaw SC-Lee SC-
1230 PM EDT Sun Aug 4 2019

...Strong Thunderstorms Will Impact Portions of northwestern
Sumter...east central Richland...southeastern Kershaw and
northwestern Lee Counties Until 100 PM EDT....

At 1230 PM EDT...National Weather Service doppler radar indicated
strong thunderstorms along a line extending from 7 miles northeast of
Cassatt to near Fort Jackson, moving east at 15 mph.

  HAZARD...gusty winds 40 to 50 mph and localized minor flooding.

  IMPACT...expect minor damage to tree limbs and blowing around of
           light, unsecured objects. Localized minor flooding of low
           lying and poor drainage areas is also possible.

Some locations in the path of these storms include...
Columbia, Camden, Fort Jackson, Cassatt, Goodale State Park, Lugoff,
Bethune, Lucknow, Spring Hill, North Towne Square Shopping Center,
Antioch, Fort Jackson Wildcat Road, Midway Elementary School, Boykin,
Fort Jackson McCrady Training Center, Wateree River Correctional
Institution, Rembert, Woodward Airfield and Ashland.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Heavy rainfall is occurring with these storms, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

These storms may intensify. Monitor NOAA Weather Radio, local radio
and television stations for additional information and possible
warnings from the National Weather Service.

&&

This includes the following highways...
 Interstate 20 in South Carolina between mile markers 80 and 112.
 Interstate 77 near mile marker 13.

LAT...LON 3396 8064 3403 8095 3447 8034 3447 8033
      3443 8033 3439 8029 3436 8029 3434 8025
      3432 8024 3434 8021 3437 8019 3437 8018
      3433 8018
TIME...MOT...LOC 1630Z 263DEG 13KT 3444 8033 3406 8083

JAQ

Special weather statement, Aug 4, 1:02 PM EDT, 1 hour 8 minutes before

Special Weather Statement
National Weather Service Columbia SC
102 PM EDT Sun Aug 4 2019

SCZ036-041-041730-
Orangeburg SC-Bamberg SC-
102 PM EDT Sun Aug 4 2019

...Strong Thunderstorms Will Impact Portions of south central
Orangeburg and southeastern Bamberg Counties Until 130 PM EDT....

At 102 PM EDT...National Weather Service doppler radar indicated a
strong thunderstorm near Smoaks, or 12 miles southeast of Bamberg,
moving east at 30 to 40 mph.

  HAZARD...gusty winds 40 to 50 mph, excessive cloud to ground
           lightning and localized minor flooding.

  IMPACT...expect minor damage to tree limbs and blowing around of
           light, unsecured objects. All outdoor activities should
           cease. Move indoors immediately. Localized, minor
           flooding of low lying and poor drainage areas is also
           possible.

Some locations in the path of this storm include...
Branchville and Bowman.

Heavy rainfall is occurring with this storm, and may cause localized
flooding. Do not drive your vehicle through flooded roadways.

Move indoors immediately.  Excessive cloud to ground lightning is
occurring with this storm. If you can hear thunder, you are close
enough to be struck by lightning.

This includes Interstate 26 near mile marker 164.

LAT...LON 3307 8092 3310 8094 3309 8097 3326 8102
      3337 8060 3330 8058 3329 8059 3312 8089
      3309 8088 3306 8090
TIME...MOT...LOC 1702Z 255DEG 36KT 3317 8087

LCV

Special weather statement, Aug 4, 2:10 PM EDT, 0 minutes before

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The office that day

Everything else NWS Columbia, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 4, 9:18 AM EDT	Areal Flood Advisory	CAE	Edgefield, McCormick	3 hr
Aug 4, 9:29 AM EDT	Areal Flood Advisory	CAE	Aiken	2 hr
Aug 4, 11:29 AM EDT	Special Weather Statement	CAE	Barnwell	31 min
Aug 4, 12:14 PM EDT	Special Weather Statement	CAE	Bamberg, Orangeburg	31 min
Aug 4, 12:30 PM EDT	Special Weather Statement	CAE	Richland	30 min
Aug 4, 1:02 PM EDT	Special Weather Statement	CAE	Bamberg	28 min
Aug 4, 2:57 PM EDT	Areal Flood Advisory	CAE	Chesterfield, Kershaw, Lancaster	2 hr
Aug 4, 8:14 AM EDT	Areal Flood Advisory	CAE	Columbia, Lincoln, McDuffie	2 hr
Aug 4, 8:51 AM EDT	Areal Flood Advisory	CAE	Columbia, Lincoln	114 min
Aug 4, 9:13 AM EDT	Special Weather Statement	CAE	Columbia	62 min

Nearby

Special Weather Statements in South Carolina, 2019 Every special weather statement in 2019

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.