Alert archive / North Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 20, NWS Wilmington, NC

October 8, 20166 counties in North Carolina

NWS Wilmington, NC issued this flash flood warning at Oct 8, 2016, 9:55 PM EDT for 6 counties in North Carolina. It was in force for 7 hr. 1 report 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
Oct 8, 2016, 9:55 PM EDT (01:55 UTC)
Expired
Oct 9, 2016, 5:00 AM EDT
In force
7 hr
Issued by
NWS Wilmington, NC
Area
Storm-based polygon
Flood severity
None

Counties Bladen County, NC, Brunswick County, NC, Columbus County, NC, New Hanover County, NC, Pender County, NC, Robeson County, NC

The radar

The Wilmington radar (KLTX), 53 km from the middle of the area, began a volume at 01:56 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
Oct 9, 2:00 AM EDTFLASH FLOODWilmington, NCNUMEROUS ROADS FLOODED... IMPASSABLE... AND CLOSED ACROSS NEW HANOVER COUNTY.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Newport, NC (KMHX), launched 00:00Z, 1.9 hours before the alert went out and 142 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, Newport, NC at 00:00Z on 2016-10-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 142 joules per kilogram.LCLEL10008507005003002001001 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, Newport, NC at 00:00Z on 2016-10-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 97 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
142 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
516 m above ground
0-6 km bulk shear
26 kt
0-1 km storm-relative helicity
97 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

064 
WGUS52 KILM 090155
FFWILM
NCC017-019-047-129-141-155-090900-
/O.NEW.KILM.FF.W.0020.161009T0155Z-161009T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
955 PM EDT SAT OCT 8 2016

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NEW HANOVER COUNTY IN SOUTHEASTERN NORTH CAROLINA...
  BLADEN COUNTY IN SOUTHEASTERN NORTH CAROLINA...
  COLUMBUS COUNTY IN SOUTHEASTERN NORTH CAROLINA...
  BRUNSWICK COUNTY IN SOUTHEASTERN NORTH CAROLINA...
  PENDER COUNTY IN SOUTHEASTERN NORTH CAROLINA...
  ROBESON COUNTY IN SOUTHEASTERN NORTH CAROLINA...

* UNTIL 500 AM EDT SUNDAY

* AT 953 PM EDT...PROLONGED HEAVY RAIN ASSOCIATED WITH HURRICANE
  MATTHEW HAS RESULTED IN WIDESPREAD FLOODING ACROSS THE AREA.
  ALTHOUGH SIGNIFICANT RAINFALL HAS ENDED...ROADS IN MANY AREAS ARE
  IMPASSABLE AND WILL LIKELY REMAIN SO THROUGH THE OVERNIGHT.
  MOTORISTS SHOULD NOT TRAVEL TONIGHT.

* ALL OF SOUTHEAST NORTH CAROLINA WILL CONTINUE TO EXPERIENCE
  PROLONGED FLOODING.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. THE WATER DEPTH WILL BE HARD TO DETERMINE...AND
WASHED OUT OR DAMAGED ROADS MAY BE DIFFICULT TO IDENTIFY. AVOID
FLOODED AREAS OR ROADS THAT HAVE BEEN CLOSED. KEEP A SAFE DISTANCE
FROM THE BANKS OF SWIFTLY MOVING STREAMS...CREEKS...AND DITCHES.

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

&&

LAT...LON 3432 7769 3417 7783 3384 7796 3389 7803
      3391 7814 3390 7837 3385 7854 3463 7946
      3477 7933 3484 7935 3483 7919 3495 7903
      3490 7894 3484 7890 3486 7850 3455 7825
      3472 7811 3472 7768 3448 7758 3444 7752

$$

JDW
1 follow-up statement
235 
WGUS72 KILM 090745
FFSILM

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
345 AM EDT SUN OCT 9 2016

NCC017-019-047-129-141-155-090755-
/O.CAN.KILM.FF.W.0020.000000T0000Z-161009T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
NEW HANOVER NC-BLADEN NC-COLUMBUS NC-BRUNSWICK NC-PENDER NC-
ROBESON NC-
345 AM EDT SUN OCT 9 2016

...THE FLASH FLOOD WARNING FOR NEW HANOVER...BLADEN...COLUMBUS...
BRUNSWICK...PENDER AND ROBESON COUNTIES IS CANCELLED...

FLOOD WATERS NO LONGER POSE A THREAT TO LIFE OR PROPERTY. PLEASE
CONTINUE TO HEED ALL ROAD CLOSURES.

LAT...LON 3432 7769 3417 7783 3384 7796 3389 7803
      3391 7814 3390 7837 3385 7854 3463 7946
      3477 7933 3484 7935 3483 7919 3495 7903
      3490 7894 3484 7890 3486 7850 3455 7825
      3472 7811 3472 7768 3448 7758 3444 7752

$$

III

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 9, 12:07 AM EDTSmall Craft AdvisoryILM44 hr
Oct 9, 2:05 PM EDTAreal Flood WarningILMBladen, Columbus, Robeson24 hr

Nearby

Flash Flood Warnings in North 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.