Alert archive / North Carolina / Flash Flood Warnings in 2016

Flash Flood Warning 10, NWS Wilmington, NC

September 30, 2016Pender County, North Carolina

NWS Wilmington, NC issued this flash flood warning at Sep 30, 2016, 10:23 AM EDT for Pender County, North Carolina. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Sep 30, 2016, 10:23 AM EDT (14:23 UTC)
Expired: Sep 30, 2016, 1:30 PM EDT
In force: 3 hr
Issued by: NWS Wilmington, NC
Area: Storm-based polygon
Flood severity: None

County Pender County, NC

The radar

The Wilmington radar (KLTX), 82 km from the middle of the area, began a volume at 14:23 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

Newport, NC (KMHX), launched 12:00Z, 2.4 hours before the alert went out and 85 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: 1538 J/kg
Mixed-layer CIN: -9 J/kg
Mixed-layer LCL: 703 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 63 m²/s²
0-3 km storm-relative helicity: 88 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.2

Open this sounding in Storm Lab

The text

As transmitted.

744 
WGUS52 KILM 301423
FFWILM
NCC141-301730-
/O.NEW.KILM.FF.W.0010.160930T1423Z-160930T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE WILMINGTON NC
1023 AM EDT FRI SEP 30 2016

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN PENDER COUNTY IN SOUTHEASTERN NORTH CAROLINA...

* UNTIL 130 PM EDT
    
* AT 1023 AM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 2 TO 3 INCHES OF RAIN HAVE
  FALLEN, AND MORE HEAVY RAINFALL IS TRAINING INTO THE WARNED AREA.
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SURF CITY...RICH INLET...FIGURE EIGHT ISLAND...HAMPSTEAD...TOPSAIL
  BEACH...SCOTTS HILL...WOODSIDE...TOPSAIL AND EDGECOMB.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOODING DEATHS OCCUR IN VEHICLES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROAD. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. FLOWING WATER CAN BE POWERFUL ENOUGH TO
SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED ROADS MAKE THE
SMART CHOICE: TURN AROUND...DON'T DROWN!

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

&&

LAT...LON 3438 7762 3429 7771 3429 7774 3434 7780
      3437 7782 3438 7781 3439 7782 3462 7764
      3448 7758 3446 7754 3444 7752

$$

JDW

1 follow-up statement

171 
WGUS72 KILM 301722
FFSILM

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE WILMINGTON NC
122 PM EDT FRI SEP 30 2016

NCC141-301730-
/O.EXP.KILM.FF.W.0010.000000T0000Z-160930T1730Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
PENDER NC-
122 PM EDT FRI SEP 30 2016

...THE FLASH FLOOD WARNING FOR SOUTHEASTERN PENDER COUNTY WILL EXPIRE
AT 130 PM EDT...

THE HEAVY RAIN HAS ENDED AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 3438 7762 3429 7771 3429 7774 3434 7780
      3437 7782 3438 7781 3439 7782 3462 7764
      3448 7758 3446 7754 3444 7752

$$

SGL

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 30, 7:56 AM EDT	Special Weather Statement	ILM	Pender	34 min
Sep 30, 7:58 AM EDT	Special Weather Statement	ILM	Pender	32 min
Sep 30, 8:30 AM EDT	Special Weather Statement	ILM	Brunswick	45 min
Sep 30, 8:42 AM EDT	Areal Flood Advisory	ILM	Pender	3 hr
Sep 30, 9:08 AM EDT	Special Marine Warning	ILM		67 min
Sep 30, 9:12 AM EDT	Coastal Flood Advisory	ILM	New Hanover	108 min
Sep 30, 9:34 AM EDT	Special Marine Warning	ILM		26 min
Sep 30, 9:54 AM EDT	Areal Flood Advisory	ILM	Brunswick, New Hanover	4 hr
Sep 30, 4:11 PM EDT	Special Weather Statement	ILM	Bladen	49 min
Sep 30, 4:42 PM EDT	Special Weather Statement	ILM	Bladen	48 min

Nearby

Flash Flood Warnings in North Carolina, 2016 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.