Alert archive / South Carolina / Special Weather Statements in 2021

Special Weather Statement, NWS Columbia, SC

August 10, 2021Newberry County, South Carolina

NWS Columbia, SC issued this special weather statement at Aug 10, 2021, 2:56 PM EDT for Newberry 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
Aug 10, 2021, 2:56 PM EDT (18:56 UTC)
Expired
Aug 10, 2021, 3:45 PM EDT
In force
49 min
Issued by
NWS Columbia, SC
Hail
0.00 in
Wind
40

County Newberry County, SC

The radar

The Columbia radar (KCAE), 42 km from the middle of the area, began a volume at 18:56 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, 6.9 hours before the alert went out and 199 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-pSkew-T log-p diagram, Charleston AFB, SC at 12:00Z on 2021-08-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 409 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Charleston AFB, SC at 12:00Z on 2021-08-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -3 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
409 J/kg
Mixed-layer CIN
-81 J/kg
Mixed-layer LCL
1050 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-3 m²/s²
0-3 km storm-relative helicity
-5 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

447 
WWUS82 KCAE 101856
SPSCAE

Special Weather Statement
National Weather Service Columbia SC
256 PM EDT Tue Aug 10 2021
 
SCZ020-101945-
Newberry SC-
256 PM EDT Tue Aug 10 2021

...Strong thunderstorms will impact portions of Newberry County 
through 345 PM EDT...

At 255 PM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Blair to near Prosperity. Movement was
south at 10 mph.

HAZARD...Winds in excess of 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects.

Locations impacted include...
Newberry, Prosperity, Dreher Island State Park, Little Mountain,
Pomaria, Peak, Stoney Hill, Maybington Fire Station, US-176 and SC-
34 Crossroads, Fairview Fire Station, Henderson Island and Mid-
Carolina High School.

This includes Interstate 26 between mile markers 73 and 89.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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

&&

LAT...LON 3441 8141 3430 8134 3427 8134 3424 8132
      3420 8134 3418 8140 3414 8143 3412 8143
      3409 8140 3407 8141 3409 8146 3408 8152
      3416 8167 3445 8154 3449 8142
TIME...MOT...LOC 1855Z 016DEG 7KT 3438 8148 3425 8148 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 10, 2:52 PM EDTSpecial Weather StatementCAEMcCormick23 min
Aug 10, 3:54 PM EDTSpecial Weather StatementCAEEdgefield51 min
Aug 10, 4:30 PM EDTSevere Thunderstorm WarningCAEEdgefield45 min
Aug 10, 5:20 PM EDTSpecial Weather StatementCAEAiken40 min
Aug 10, 5:52 PM EDTSevere Thunderstorm WarningCAEAiken, Lexington38 min
Aug 10, 7:08 PM EDTSpecial Weather StatementCAEChesterfield52 min

Nearby

Special Weather Statements in South Carolina, 2021Every 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.