Alert archive / North Carolina / Flash Flood Warnings in 2000

Flash Flood Warning 5, NWS Newport/Morehead City, NC

September 18, 2000Onslow County, North Carolina

NWS Newport/Morehead City, NC issued this flash flood warning at Sep 18, 2000, 1:54 PM EDT for Onslow County, North Carolina. It was in force for 81 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 18, 2000, 1:54 PM EDT (17:54 UTC)
Expired
Sep 18, 2000, 3:15 PM EDT
In force
81 min
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

County Onslow County, NC

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 5.9 hours before the alert went out and 47 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 12:00Z on 2000-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 78 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, Newport, NC at 12:00Z on 2000-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
78 J/kg
Mixed-layer CIN
-32 J/kg
Mixed-layer LCL
699 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
174 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 
WGUS52 KMHX 181754
FFWMHX
NCC133-181915-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
154 PM EDT MON SEP 18 2000

THE NATIONAL WEATHER SERVICE OFFICE IN NEWPORT HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  ONSLOW COUNTY IN EASTERN NORTH CAROLINA

* UNTIL 315 PM EDT

* AT 154 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAIN ALONG HIGHWAY 17 FROM SNEADS    
  FERRY TO CAMP LEJEUNE...MOVING NORTHEAST AT 25 MPH. RAINFALL RATES 
  AROUND 3 INCHES AN HOUR WERE OCCURRING WITH THESE STORMS.

* FLOODING CAN BE EXPECTED IN AND AROUND
   CAMP LEJEUNE.
   HUBERT.
   DEPPE.
   SNEADS FERRY.
   JACKSONVILLE. 

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.

PLEASE REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR
RELAY TO THE NATIONAL WEATHER SERVICE.

NNNN

08

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 Newport/Morehead City, NC wrote its last area forecast discussion before this flash flood warning went out at Sep 18, 11:38 AM EDT, 2 hours 16 minutes earlier.

Area forecast discussion, Sep 18, 11:38 AM EDT, 2 hours 16 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
1138 AM EDT MON SEP 18 2000

TWO CONCERNS THIS AFTERNOON. ONE IS FLOOD POTENTIAL WITH DEEP
TROPICAL MOISTURE OVERSPREADING THE REGION. PW'S ARE OVER 2" AND
CONVECTION CONTINUES TO FLARE UP OFFSHORE AND SPREAD INLAND. SFC
ANALYSIS PAST FEW HOURS SHOWS A WELL DEFINED COASTAL TROUGH/WARM
FRONT ALONG THE IMMEDIATE COAST. CONVERGENCE ALONG THIS FEATURE IS
STRONGEST OVR NE SOUTH CAROLINA THIS AM WHERE COLD TOPS HAVE
PERSISTED. THE STRONGER CONVERGENCE WILL SPREAD INTO ESTRN NC THIS
AFTERNOON AS THE REMNANTS OF GORDON CONTINUE NE. SINCE THE TRACK OF
TROPICAL DEPRESSION GORDON ARE MOVING MORE WESTWARD THAN EARLIER
FORECASTS...FLOOD POTENTIAL HAS SHIFTED MORE INLAND. SATELLITE AND
RADAR TRENDS INDICATE THAT THE AREA FROM SNOW HILL TO KENANSVILLE
ALREADY HAS RECEIVED OCNLY HVY RAIN MOST OF THE AM AND WITH COLD
TOPS OVER SC MOVG TWRDS THIS REGION...A FLOOD WATCH HAS BEEN ISSUED
FOR THE INLAND COUNTIES FOR 3-5 INCH AMOUNTS BY THIS EVENING.

OTHER WORRY IS POTENTIAL FOR BRIEF SPINUP TORNADOES. WE HAVE
OBSERVED SEVERAL WELL DEVELOPED...BUT MOSTLY SHALLOW MESO-CYCLONES
JUST OFFSHORE. THIS POTENTIAL WILL LIKELY INCREASE THIS AFTERNOON AS
THERMAL/MOISTURE BOUNDARY STRENGTHENS AND SHIFTS INLAND.

CWF: SMALL CRAFT ADV WILL BE CONTINUED FOR THE SRN WATERS. STILL
SOME UNCERTAINTY ON HOW STRONG WINDS WILL BE UP N...SO WILL HOLD OFF
ON ISSUING THE SCA AND WAIT TIL THE AFTERNOON ZONES TO DECIDE.

.MHX...SCA CSTL WTRS S OF HAT AND PAMLICO SND.
       FLOOD WATCH DUPLIN...LENOIR...GREEN...PITT...AND MARTIN
       COUNTIES.

ELARDO

The office that day

Everything else NWS Newport/Morehead City, NC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 18, 3:19 PM EDTFlash Flood WarningMHXOnslow56 min
Sep 18, 4:15 PM EDTFlash Flood WarningMHXOnslow3 hr
Sep 18, 4:27 PM EDTTornado WarningMHXCarteret, Craven33 min
Sep 18, 5:10 PM EDTFlash Flood WarningMHXCraven3 hr

Nearby

Flash Flood Warnings in North Carolina, 2000Every flash flood warning in 2000

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.