Alert archive / South Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 2, NWS Wilmington, NC

September 2, 2016Georgetown County, Horry County, South Carolina

NWS Wilmington, NC issued this flash flood warning at Sep 2, 2016, 2:15 PM EDT for Georgetown County, Horry County, South Carolina. It was in force for 2 hr. 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
Sep 2, 2016, 2:15 PM EDT (18:15 UTC)
Expired
Sep 2, 2016, 4:15 PM EDT
In force
2 hr
Issued by
NWS Wilmington, NC
Area
Storm-based polygon
Flood severity
None

Counties Georgetown County, SC, Horry County, SC

The radar

The Wilmington radar (KLTX), 72 km from the middle of the area, began a volume at 18:15 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

TimeReportWhereRemark
Sep 2, 3:00 PM EDTFLASH FLOOD1 Ssw Crystal Oaks, SCREPORT OF DAMAGE TO ROADWAY INFRONT OF BIG DAVES TACKLE.
Sep 2, 3:45 PM EDTFLOOD1 Nnw Eagle Crest, SCSTANDING WATER REPORTED IN THE SHALLOW CREEK BAY COMMUNITY COVERING SIDEWALKS AND PORTIONS OF YARDS.

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, 6.3 hours before the alert went out and 123 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 2016-09-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 253 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 2016-09-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 203 square meters per square second.193958Sfc1 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
253 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
476 m above ground
0-6 km bulk shear
33 kt
0-1 km storm-relative helicity
203 m²/s²
0-3 km storm-relative helicity
362 m²/s²
Significant tornado parameter
0.3
Supercell composite
3.9

Open this sounding in Storm Lab

The text

As transmitted.

142 
WGUS52 KILM 021815
FFWILM
SCC043-051-022015-
/O.NEW.KILM.FF.W.0002.160902T1815Z-160902T2015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
215 PM EDT FRI SEP 2 2016

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN GEORGETOWN COUNTY IN NORTHEASTERN SOUTH CAROLINA...
  SOUTHWESTERN HORRY COUNTY IN NORTHEASTERN SOUTH CAROLINA...

* UNTIL 415 PM EDT
    
* AT 215 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MYRTLE BEACH...CONWAY...SURFSIDE BEACH...RED HILL...
  SPRINGMAID PIER...SOCASTEE...GARDEN CITY...MYRTLE BEACH AIRPORT...
  MURRELLS INLET...HORRY...HICKORY GROVE...HOMEWOOD...DONGOLA...
  BUCKSPORT...BUCKSVILLE...NIXONVILLE...GORETOWN...
  PEE DEE CROSSROADS...ADRIAN AND FORESTBROOK.

ADDITIONAL RAINFALL AMOUNTS OF TWO TO THREE INCHES ARE POSSIBLE IN
THE WARNED AREA.

THIS INCLUDES THE FOLLOWING HIGHWAYS...
 SC HIGHWAY 31 BETWEEN MILE MARKERS 5 AND 11.
 SC HIGHWAY 22 BETWEEN MILE MARKERS 1 AND 22.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

PLEASE REPORT FLOODING TO THE NATIONAL WEATHER SERVICE IN WILMINGTON
AT 800 - 697 - 3901 WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3352 7921 3370 7924 3370 7920 3372 7919
      3376 7924 3382 7926 3383 7925 3384 7926
      3389 7926 3390 7928 3396 7929 3403 7881
      3372 7885 3363 7894 3352 7904

$$

MBB

The office that day

Everything else NWS Wilmington, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 2, 12:09 AM EDTRip Current StatementILMGeorgetown, Horry45 hr
Sep 2, 3:40 AM EDTWind AdvisoryILMDarlington, Dillon, Marlboro22 hr
Sep 2, 10:23 AM EDTRiver Flood WarningILMFlorence, Marion35 hr
Sep 2, 10:23 AM EDTRiver Flood WarningILMDarlington, Florence48 hr
Sep 2, 10:23 AM EDTRiver Flood WarningILMWilliamsburg35 hr
Sep 2, 3:36 PM EDTTornado WarningILMHorry12 min
Sep 2, 4:56 PM EDTAreal Flood AdvisoryILMHorry2 hr
Sep 2, 6:09 PM EDTAreal Flood AdvisoryILMDarlington, Dillon, Florence, Marion, Marlboro, Williamsburg4 hr

Nearby

Flash Flood Warnings in South Carolina, 2016Every flash flood warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.