Alert archive / South Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Columbia, SC

June 30, 2017Bamberg County, Orangeburg County, South Carolina

NWS Columbia, SC issued this special weather statement at Jun 30, 2017, 7:14 PM EDT for Bamberg County, Orangeburg County, South Carolina. It was in force for 61 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
Jun 30, 2017, 7:14 PM EDT (23:14 UTC)
Expired
Jun 30, 2017, 8:15 PM EDT
In force
61 min
Issued by
NWS Columbia, SC

Counties Bamberg County, SC, Orangeburg County, SC

The radar

The Charleston,SC radar (KCLX), 72 km from the middle of the area, began a volume at 23:14 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

Jacksonville, FL (KJAX), launched 12:00Z, 11.2 hours before the alert went out and 320 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, Jacksonville, FL at 12:00Z on 2017-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1373 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Jacksonville, FL at 12:00Z on 2017-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 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
1373 J/kg
Mixed-layer CIN
-26 J/kg
Mixed-layer LCL
774 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
34 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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 Jun 30, 7:07 PM EDT, 7 minutes earlier.

Area forecast discussion, Jun 30, 7:07 PM EDT, 7 minutes before
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Hazardous weather outlook, Jun 30, 3:44 AM EDT, 15 hours 30 minutes before
Hazardous Weather Outlook
National Weather Service Columbia SC
344 AM EDT Fri Jun 30 2017

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-010745-
Lincoln-McDuffie-Columbia-Richmond-Burke-Lancaster-Chesterfield-
McCormick-Newberry-Fairfield-Kershaw-Edgefield-Saluda-Lexington-
Richland-Lee-Aiken-Sumter-Barnwell-Orangeburg-Calhoun-Clarendon-
Bamberg-
344 AM EDT Fri Jun 30 2017

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

.DAY ONE...Today and Tonight.

Scattered to numerous thunderstorms are expected today producing
locally heavy rainfall in the stronger storms.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jun 30, 5:30 PM EDT, 1 hour 44 minutes before
Special Weather Statement
National Weather Service Columbia SC
530 PM EDT FRI JUN 30 2017

GAZ064-065-SCZ025-030-302200-
Richmond-Columbia-Aiken-Edgefield-
530 PM EDT FRI JUN 30 2017

...A STRONG THUNDERSTORM WILL AFFECT EAST CENTRAL COLUMBIA...
NORTHEASTERN RICHMOND...SOUTH CENTRAL EDGEFIELD AND WEST CENTRAL
AIKEN COUNTIES...

At 530 PM EDT, a strong thunderstorm was located over Augusta, moving
east at 35 mph.

Winds 40 to 50 mph are expected with this storm along with brief
heavy rain.

Locations impacted include...
Aiken, North Augusta, Augusta, Clearwater, Belvedere, Martinez, New
Ellenton, Gloverville and Burnettown.

LAT...LON 3337 8205 3354 8208 3367 8162 3341 8152
TIME...MOT...LOC 2130Z 252DEG 30KT 3345 8197

awp
Special weather statement, Jun 30, 5:33 PM EDT, 1 hour 41 minutes before
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Special weather statement, Jun 30, 5:59 PM EDT, 1 hour 15 minutes before
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Local storm report, Jun 30, 6:26 PM EDT, 48 minutes before
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Special weather statement, Jun 30, 6:58 PM EDT, 16 minutes before
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Special weather statement, Jun 30, 7:14 PM EDT, 0 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 29, 11:48 PM EDTAreal Flood AdvisoryCAEAiken, Edgefield, Saluda117 min
Jun 30, 4:45 PM EDTSpecial Weather StatementCAEMcCormick45 min
Jun 30, 5:30 PM EDTSpecial Weather StatementCAEAiken30 min
Jun 30, 5:59 PM EDTSpecial Weather StatementCAEAiken46 min
Jun 30, 6:10 PM EDTSevere Thunderstorm WarningCAEAiken, Lexington50 min
Jun 30, 6:58 PM EDTSpecial Weather StatementCAELexington, Richland62 min
Jun 30, 5:18 PM EDTSpecial Weather StatementCAERichmond42 min
Jun 30, 5:33 PM EDTSpecial Weather StatementCAEBurke27 min

Nearby

Special Weather Statements in South Carolina, 2017Every special weather statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.