Alert archive / South Carolina / Areal Flood Advisories in 2016

Areal Flood Advisory 13, NWS Columbia, SC

May 2, 2016Barnwell County, South Carolina

NWS Columbia, SC issued this areal flood advisory at May 2, 2016, 6:33 PM EDT for Barnwell County, South Carolina. It was in force for 117 min.

The area

The counties it named.

The facts

Issued: May 2, 2016, 6:33 PM EDT (22:33 UTC)
Expired: May 2, 2016, 8:30 PM EDT
In force: 117 min
Issued by: NWS Columbia, SC
Area: Storm-based polygon

County Barnwell County, SC

The radar

The Charleston,SC radar (KCLX), 77 km from the middle of the area, began a volume at 22:32 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, 10.6 hours before the alert went out and 140 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: 535 J/kg
Mixed-layer CIN: -42 J/kg
Mixed-layer LCL: 819 m above ground
0-6 km bulk shear: 19 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory 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 areal flood advisory went out at May 2, 6:30 PM EDT, 3 minutes earlier.

Area forecast discussion, May 2, 6:30 PM EDT, 3 minutes before

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Hazardous weather outlook, May 2, 2:48 AM EDT, 15 hours 45 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE COLUMBIA SC
248 AM EDT MON MAY 2 2016

GAZ040-063>065-077-SCZ015-016-018-020>022-025>031-035>038-041-030915-
LINCOLN-MCDUFFIE-COLUMBIA-RICHMOND-BURKE-LANCASTER-CHESTERFIELD-
MCCORMICK-NEWBERRY-FAIRFIELD-KERSHAW-EDGEFIELD-SALUDA-LEXINGTON-
RICHLAND-LEE-AIKEN-SUMTER-BARNWELL-ORANGEBURG-CALHOUN-CLARENDON-
BAMBERG-
248 AM EDT MON MAY 2 2016

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE MIDLANDS OF SOUTH CAROLINA
AND THE CENTRAL SAVANNAH RIVER AREA OF GEORGIA.

.DAY ONE...TODAY AND TONIGHT.

THUNDERSTORMS TODAY AND TONIGHT COULD POSSIBLY CONTAIN DAMAGING
WIND AND HAIL. HEAVY RAIN WITH LOCALIZED FLOODING WILL ALSO BE
POSSIBLE.

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY.

THUNDERSTORMS TUESDAY COULD POSSIBLY CONTAIN DAMAGING WIND AND
HAIL.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS NOT EXPECTED AT THIS TIME.

In the hours before

Local storm report, May 2, 4:16 PM EDT, 2 hours 17 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
416 PM EDT MON MAY 2 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0350 PM     TSTM WND DMG     RIDGEWAY                34.31N 80.96W
05/02/2016                   FAIRFIELD          SC   LAW ENFORCEMENT

            TREE DOWN OLD HWY 21 IN RIDGEWAY

&&

DA

Local storm report, May 2, 4:21 PM EDT, 2 hours 12 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
421 PM EDT MON MAY 2 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0353 PM     HAIL             10 NNE RIDGEWAY         34.44N 80.88W
05/02/2016  E1.00 INCH       FAIRFIELD          SC   PUBLIC

            QUARTER SIZED HAIL REPORTED AT SUTTONS
            LANDING ON THE NORTHERN END OF LAKE WATEREE.

&&

DCM

Local storm report, May 2, 4:53 PM EDT, 1 hour 40 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
453 PM EDT MON MAY 2 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0438 PM     HAIL             8 NE ELGIN              34.74N 80.61W
05/02/2016  E0.75 INCH       LANCASTER          SC   FIRE DEPT/RESCUE

&&

DA

Local storm report, May 2, 4:56 PM EDT, 1 hour 37 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
456 PM EDT MON MAY 2 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0445 PM     FLOOD            6 NE ELGIN              34.74N 80.66W
05/02/2016                   LANCASTER          SC   PUBLIC

            WATER COVERING ROADWAY / ROADWAY FLOODING
            HWY 9 E OF LANCASTER

&&

DA

Local storm report, May 2, 5:08 PM EDT, 1 hour 25 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE COLUMBIA SC
508 PM EDT MON MAY 2 2016

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0434 PM     TSTM WND DMG     LANCASTER               34.73N 80.78W
05/02/2016                   LANCASTER          SC   TRAINED SPOTTER

            MULTIPLE TREES DOWN IN LANCASTER. WOODLAND
            DRIVE AND OTHER LOCATIONS.

&&

DA

Special weather statement, May 2, 6:06 PM EDT, 27 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 9:34 PM EDT	Areal Flood Advisory	CAE	Lancaster	116 min
May 1, 11:27 PM EDT	Areal Flood Advisory	CAE	Lancaster	3 hr
May 2, 2:14 PM EDT	Special Weather Statement	CAE	Edgefield	61 min
May 2, 2:18 PM EDT	Special Weather Statement	CAE	Lancaster	27 min
May 2, 2:49 PM EDT	Special Weather Statement	CAE	Richland	41 min
May 2, 3:36 PM EDT	Severe Thunderstorm Warning	CAE	Fairfield, Kershaw, Richland	54 min
May 2, 3:58 PM EDT	Severe Thunderstorm Warning	CAE	Lancaster	62 min
May 2, 4:07 PM EDT	Special Weather Statement	CAE	Newberry	38 min
May 2, 5:08 PM EDT	Severe Thunderstorm Warning	CAE	Clarendon, Orangeburg	23 min
May 2, 5:14 PM EDT	Areal Flood Advisory	CAE	Lancaster	2 hr
May 2, 6:06 PM EDT	Special Weather Statement	CAE	Barnwell	24 min
May 2, 7:17 PM EDT	Special Weather Statement	CAE	Marlboro	13 min

Nearby

Areal Flood Advisories in South Carolina, 2016 Every areal flood advisory in 2016

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.