Alert archive / South Carolina / Severe Thunderstorm Warnings in 2017

Severe Thunderstorm Warning 65, NWS Columbia, SC

May 22, 2017Fairfield County, Newberry County, South Carolina

NWS Columbia, SC issued this severe thunderstorm warning at May 22, 2017, 2:34 PM EDT for Fairfield County, Newberry County, South Carolina. It was in force for 26 min. 2 reports 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: May 22, 2017, 2:34 PM EDT (18:34 UTC)
Expired: May 22, 2017, 3:00 PM EDT
In force: 26 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Fairfield County, SC, Newberry County, SC

The radar

The Columbia radar (KCAE), 50 km from the middle of the area, began a volume at 18:37 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
May 22, 2:40 PM EDT	TSTM WND DMG	3 Nw Pomaria, SC	NEWBERRY COUNTY SHERIFF REPORTED TREES DOWN ON US 176 CORRECTION TO PREVIOUS REPORT.
May 22, 2:40 PM EDT	TSTM WND DMG	4 Nw Pomaria, SC	SEVERAL TREES DOWN AND TIN ROOF BLOWN OFF ON HIGHWAY 176 BETWEEN MUD CREEK ROAD AND HIGHWAY 219.

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, 6.6 hours before the alert went out and 205 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: 292 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 850 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 75 m²/s²
0-3 km storm-relative helicity: 76 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.8

Open this sounding in Storm Lab

The text

As transmitted.

397 
WUUS52 KCAE 221834
SVRCAE
SCC039-071-221900-
/O.NEW.KCAE.SV.W.0065.170522T1834Z-170522T1900Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Columbia SC
234 PM EDT MON MAY 22 2017

The National Weather Service in Columbia has issued a

* Severe Thunderstorm Warning for...
  West central Fairfield County in central South Carolina...
  East central Newberry County in central South Carolina...

* Until 300 PM EDT

* At 234 PM EDT, a severe thunderstorm was located 7 miles northeast
  of Prosperity, or 8 miles east of Newberry, moving northeast at 10
  mph.

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

  SOURCE...Radar indicated. 

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees. 

* Locations impacted include...
  Pomaria.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3443 8140 3435 8129 3426 8134 3422 8144
      3429 8154
TIME...MOT...LOC 1834Z 206DEG 9KT 3431 8146 

HAIL...1.00IN
WIND...60MPH
 
$$

lm

The office that day

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

Issued	Product	Office	Counties	Lasted
May 22, 11:16 AM EDT	Flash Flood Watch	CAE	Aiken, Bamberg, Barnwell, Calhoun, Chesterfield, Clarendon and 10 more	58 hr
May 22, 1:47 PM EDT	Areal Flood Advisory	CAE	Fairfield, Kershaw, Lexington, Newberry, Richland, Saluda	3 hr
May 22, 1:48 PM EDT	Flash Flood Warning	CAE	McCormick	3 hr
May 22, 1:59 PM EDT	Flash Flood Warning	CAE	Aiken, Kershaw, Lexington, Richland, Saluda	5 hr
May 22, 2:26 PM EDT	Special Weather Statement	CAE	Fairfield	64 min
May 22, 3:03 PM EDT	Flash Flood Warning	CAE	Saluda	117 min
May 22, 3:22 PM EDT	Severe Thunderstorm Warning	CAE	Kershaw, Sumter	38 min
May 22, 4:05 PM EDT	Special Weather Statement	CAE	Aiken	40 min
May 22, 4:29 PM EDT	Special Weather Statement	CAE	Lexington	31 min
May 22, 4:43 PM EDT	Special Weather Statement	CAE	Lexington, Richland	47 min
May 22, 5:22 PM EDT	Areal Flood Advisory	CAE	Lancaster	113 min

Nearby

Severe Thunderstorm Warnings in South Carolina, 2017 Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.