Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Columbia, SC

August 2, 2021Orangeburg County, South Carolina

NWS Columbia, SC issued this special weather statement at Aug 2, 2021, 10:00 PM EDT for Orangeburg County, South Carolina. It was in force for 30 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 2, 2021, 10:00 PM EDT (02:00 UTC)
Expired: Aug 2, 2021, 10:30 PM EDT
In force: 30 min
Issued by: NWS Columbia, SC

County Orangeburg County, SC

The radar

The Columbia radar (KCAE), 73 km from the middle of the area, began a volume at 02:03 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, 2.0 hours before the alert went out and 93 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: 1210 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 850 m above ground
0-6 km bulk shear: 9 kt
0-1 km storm-relative helicity: -48 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

The text

As transmitted.

401 
WWUS82 KCAE 030200
SPSCAE

Special Weather Statement
National Weather Service Columbia SC
1000 PM EDT Mon Aug 2 2021
 
SCZ041-136-137-030230-
Central Orangeburg SC-Southeastern Orangeburg SC-Bamberg SC-
1000 PM EDT Mon Aug 2 2021

...Strong Thunderstorms Will Impact Portions of Central Orangeburg...
southwestern Southeastern Orangeburg and central Bamberg Counties
Until 1030 PM EDT....

At 959 PM EDT...National Weather Service doppler radar indicated a
strong thunderstorm near Branchville, or 8 miles east of Bamberg,
moving northwest at 20 mph.

  HAZARD...gusty winds 40 to 50 mph.

  IMPACT...expect minor damage to tree limbs and blowing around of 
           light, unsecured objects.

Some locations in the path of this storm include...
Orangeburg, Bamberg, Brookdale, Branchville, Orangeburg County
Airport, Claflin College, Edisto Gardens, South Carolina State
University, Rowesville, Cordova, Cope, Wilkinson Heights, Prince of
Orange Mall and Edisto.

This includes Interstate 26 between mile markers 145 and 151.
 
LAT...LON 3324 8069 3319 8091 3340 8120 3359 8079
TIME...MOT...LOC 0159Z 139DEG 18KT 3331 8089 

$$

awp

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 3, 7:37 AM EDT	Areal Flood Advisory	CAE	Aiken, Calhoun, Edgefield, Lexington, Orangeburg, Richland and 1 more	113 min
Aug 3, 8:28 AM EDT	Areal Flood Advisory	CAE	Calhoun, Lexington, Orangeburg, Richland, Sumter	62 min
Aug 3, 9:32 AM EDT	Areal Flood Advisory	CAE	Calhoun, Clarendon, Orangeburg, Richland, Sumter	118 min
Aug 3, 11:47 AM EDT	Areal Flood Advisory	CAE	Clarendon, Lee, Sumter	58 min

Nearby

Special Weather Statements in South Carolina, 2021 Every special weather statement in 2021

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.