Alert archive / North Carolina / Flash Flood Warnings in 1998

Flash Flood Warning 33, NWS Wilmington, NC

August 31, 1998Robeson County, North Carolina

NWS Wilmington, NC issued this flash flood warning at Aug 31, 1998, 12:14 AM EDT for Robeson County, North Carolina. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 31, 1998, 12:14 AM EDT (04:14 UTC)
Expired: Aug 31, 1998, 2:30 AM EDT
In force: 2 hr
Issued by: NWS Wilmington, NC
Area: Whole counties

County Robeson County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 4.2 hours before the alert went out and 176 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: 34 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 2071 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 26 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KILM 310416
FFWILM
NCC155-310630-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING FOR URBAN FLOODING
NATIONAL WEATHER SERVICE WILMINGTON NC
1214 AM EDT MON AUG 31 1998

THE NATIONAL WEATHER SERVICE IN WILMINGTON HAS ISSUED A...

* FLOOD WARNING FOR...
  CENTRAL ROBESON COUNTY IN SOUTHEASTERN NORTH CAROLINA

* UNTIL 230 AM EDT

* AT 1210 AM EDT WILMINGTON DOPPLER RADAR INDICATED OVER THREE AND A
  HALF INCHES OF RAIN HAD FALLEN IN THE AREA AROUND PEMBROKE SINCE
  11 PM. A STRONG THUNDERSTORM WILL MOVE VERY SLOWLY EAST THROUGH
  130 AM AND COULD DROP ANOTHER TWO INCHES OF RAIN.


DO NOT DRIVE THROUGH FLOODED AREAS. SHALLOW...SWIFTLY FLOWING WATER
CAN WASH A CAR FROM A ROADWAY.  ALSO...THE ROADBED MAY NO6T BE
INTACT UNDER THE WATER. IF YOUR VEHICLE STALLS...ABANDON IT
IMMEDIATELY AND SEEK HIGHER GROUND.

LGE

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Wilmington, NC wrote its last area forecast discussion before this flash flood warning went out at Aug 30, 8:50 PM EDT, 3 hours 24 minutes earlier.

Area forecast discussion, Aug 30, 8:50 PM EDT, 3 hours 24 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE WILMINGTON NC
850 PM EDT SUN AUG 30 1998

RAH/CAE: UPPER 70S AGN CST. CWF: SOME ADJUSTMENTS NEEDED TO START
W/LOWER END. SCA MGT NOT B REALIZED TIL MON. DIR CUD GO WNW BY MON
MRNG. REASONS ARE BLO.

ZNS: WIDLEY SCTD TSRA STL ONGOING OVER INL CNTYS. HVY RAIN THE MAIN
CULPRIT. SHU C THIS DIMINISH IN THE NEXT FEW HRS. CUD KP SML POP FO
INL TIL MIDNGT IF ACTN SI STL GOING BY PRESSTIME. DWPTS RUNNG 2-3
DEGS HIER THAN FWC PER 3 HR TREND AT THE CST. FURTHER INL...WHR RA
HAS OCCURRED...DWPTS RUNNG IN THE LOWER 70S. LUKS LIKE A WK MESO
LOW ALONG NC-SC BRDR NR DIL-ROB CNTY. RUC2 HINTED @ THIS FTRE. WK
SFC TROF TO MOV INTO THE CWA BY MON MRNG. THOSE LOWER DWPTS CUD B
ADVECTED INTO THE CSTL RGNS ALLOWG FOR MINS TO DROP SOME IF RUC2 IS
CORRECT. FG-BR WL FRM ESP IN RA COOLED AREAS.

CWF: AS WELL STATED BY AFDCHS...THGS A BIT OVERDONE SO FAR AS
DANIELLE SLOWLY EDGG CLOSER. SWELLS 3-4 FT ATTM. CUD STL C THGS HIT
SCA CRITERIA BY MON MRNG. SSW DIR ATTM CUD ACTUALLY B TURNED TO WNW
BY MON MRNG & AM TENDING TO LEAN THAT WAY ATTM. ANY OBJECTIONS?.
SPDS OVNGT LUK TO DEC A BIT AS WELL. VWP HAD NNW DIR ABV 4K FT.

THANX TO MHX FOR HELP W/88D & COORDf CALL. MUCH APPRECIATED!.
JOE

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 31, 4:04 PM EDT	Severe Thunderstorm Warning	ILM	Robeson	46 min
Aug 31, 5:41 PM EDT	Flash Flood Warning	ILM	Bladen	2 hr

Nearby

Flash Flood Warnings in North Carolina, 1998 Every flash flood warning in 1998

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.