Alert archive / South Carolina / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 71, NWS Columbia, SC

August 14, 2021Fairfield County, Newberry County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at Aug 14, 2021, 4:45 PM EDT for Fairfield County, Newberry County, South Carolina. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Aug 14, 2021, 4:45 PM EDT (20:45 UTC)
Expired: Aug 14, 2021, 5:15 PM EDT
In force: 30 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Fairfield County, SC, Newberry County, SC

The radar

The Columbia radar (KCAE), 66 km from the middle of the area, began a volume at 20:45 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.

What was reported inside it

Time	Report	Where	Remark
Aug 14, 5:12 PM EDT	TSTM WND DMG	6 N Newberry, SC	NEWBERRY CO SHERIFFS OFFICE REPORTS TREE DOWN ON WHITMIRE HWY AND BETH EDEN RD.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Charleston AFB, SC (KCHS), launched 12:00Z, 8.8 hours before the alert went out and 221 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: 675 J/kg
Mixed-layer CIN: -98 J/kg
Mixed-layer LCL: 1024 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 4 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

249 
WUUS52 KCAE 142045
SVRCAE
SCC039-071-142115-
/O.NEW.KCAE.SV.W.0071.210814T2045Z-210814T2115Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
445 PM EDT Sat Aug 14 2021

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  Northwestern Fairfield County in central South Carolina...
  Northeastern Newberry County in central South Carolina...

* Until 515 PM EDT.

* At 444 PM EDT, a severe thunderstorm was located near Blair, or 10
  miles northwest of VC Summer Nuclear Station, moving north at 10
  mph.

  HAZARD...60 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  Whitmire, Blair, Maybington Fire Station, US-176 and SC-
  34 Crossroads, Feasterville Fire Station, Henderson Island and
  Enoree Ranger District Office.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 3456 8124 3437 8115 3432 8163 3435 8170
      3453 8164 3447 8155 3445 8155 3445 8154
      3449 8149 3449 8146 3450 8142 3457 8142
TIME...MOT...LOC 2044Z 177DEG 10KT 3440 8145 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

HC

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 14, 1:12 PM EDT	Special Weather Statement	CAE	Saluda	33 min
Aug 14, 3:07 PM EDT	Special Weather Statement	CAE	Edgefield	23 min
Aug 14, 3:17 PM EDT	Severe Thunderstorm Warning	CAE	Lancaster	28 min
Aug 14, 3:29 PM EDT	Special Weather Statement	CAE	McCormick	46 min
Aug 14, 3:36 PM EDT	Special Weather Statement	CAE	Saluda	39 min
Aug 14, 4:37 PM EDT	Special Weather Statement	CAE	Fairfield, Newberry	38 min
Aug 14, 5:49 PM EDT	Special Weather Statement	CAE	Lee	26 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2021 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.