Alert archive / South Carolina / Flood Watches in 2015

Flood Watch 3, NWS Wilmington, NC

September 30, 20156 counties in North Carolina; 8 counties in South Carolina

NWS Wilmington, NC issued this flood watch at Sep 30, 2015, 3:05 PM EDT for 6 counties in North Carolina; 8 counties in South Carolina. It took effect at Oct 1, 2015, 8:00 PM EDT. It was in force for 40 hr.

The area

The counties it named.

The facts

Issued
Sep 30, 2015, 3:05 PM EDT (19:05 UTC)
In effect from
Oct 1, 2015, 8:00 PM EDT
Expired
Oct 3, 2015, 11:50 AM EDT
In force
40 hr
Issued by
NWS Wilmington, NC
Flood severity
None

Counties Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC, Darlington County, SC, Dillon County, SC, Florence County, SC, Georgetown County, SC, Horry County, SC, Marion County, SC, Marlboro County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 59 km from the middle of the area, began a volume at 19:05 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.1 hours before the alert went out and 225 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, Greensboro/Hi Pt, NC at 12:00Z on 2015-09-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 120 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, Greensboro/Hi Pt, NC at 12:00Z on 2015-09-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -18 square meters per square second.19395878Sfc1 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
120 J/kg
Mixed-layer CIN
-136 J/kg
Mixed-layer LCL
980 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
-18 m²/s²
0-3 km storm-relative helicity
2 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 30, 3:40 AM EDTCoastal Flood AdvisoryILMBrunswick, New Hanover, Pender10 hr
Sep 30, 2:20 PM EDTCoastal Flood AdvisoryILMBrunswick, New Hanover, Pender12 hr
Sep 30, 3:06 PM EDTSmall Craft AdvisoryILM7 days
Sep 30, 3:54 PM EDTAreal Flood AdvisoryILMBrunswick, New Hanover, Pender2 hr
Sep 30, 4:16 PM EDTSpecial Weather StatementILMRobeson59 min
Sep 30, 5:13 PM EDTAreal Flood WarningILMNew Hanover62 min
Sep 30, 6:14 PM EDTAreal Flood AdvisoryILMNew Hanover2 hr
Sep 30, 2:19 PM EDTAreal Flood AdvisoryILMHorry3 hr
Sep 30, 4:09 PM EDTAreal Flood AdvisoryILMGeorgetown, Horry2 hr
Sep 30, 4:35 PM EDTAreal Flood AdvisoryILMGeorgetown3 hr
Sep 30, 5:32 PM EDTAreal Flood AdvisoryILMDillon, Marion118 min
Sep 30, 6:02 PM EDTSpecial Weather StatementILMDillon58 min
Sep 30, 6:25 PM EDTAreal Flood AdvisoryILMDillon2 hr
Sep 30, 7:31 PM EDTAreal Flood AdvisoryILMDarlington, Marlboro3 hr

Nearby

Flood Watches in South Carolina, 2015Flood Watches in North Carolina, 2015Every flood watch in 2015

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.