Alert archive / North Carolina / Flash Flood Warnings in 1999

Flash Flood Warning 20, NWS Newport/Morehead City, NC

October 17, 19995 counties in North Carolina

NWS Newport/Morehead City, NC issued this flash flood warning at Oct 17, 1999, 2:19 PM EDT for 5 counties in North Carolina. It was in force for 12 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
Oct 17, 1999, 2:19 PM EDT (18:19 UTC)
Expired
Oct 18, 1999, 2:00 AM EDT
In force
12 hr
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

Counties Carteret County, NC, Craven County, NC, Duplin County, NC, Jones County, NC, Onslow County, NC

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 6.3 hours before the alert went out and 39 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 1999-10-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 472 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, Newport, NC at 12:00Z on 1999-10-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 297 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
472 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
454 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
297 m²/s²
0-3 km storm-relative helicity
335 m²/s²
Significant tornado parameter
0.5
Supercell composite
4.1

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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 Oct 17, 9:46 AM EDT, 4 hours 33 minutes earlier.

Area forecast discussion, Oct 17, 9:46 AM EDT, 4 hours 33 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
946 AM EDT SUN OCT 17 1999

FEW CHNGS EXPECTED THIS UPDT. CONT TO SEE SOME BURSTS OF CONVECTION
NEAR CENTER OF IRENE WITH PRES NOT CHANGING MUCH. CONCERNED MAY SEE
SOME LOCALIZED RAINFALL AMOUNTS OVER 6 INCHES BASED OF CONVECTION
CURRENTLY SEEN ON RDR AND MORE LIKELY WHEN CENTER MVS ACRS TNGHT.
EVERYTHING IS WELL COVERED WITH FFA. WL HAVE TO WATCH FOR SOME ISOLD
TORNADOES AS SOUNDING SHOWS GOOD HELECITY WITH DECENT CAPE.

CWF...NO MJR CHNGS...MAY UP SEAS A LITTLE SRN WTRS BASED ON FPSN7.

.MHX...HURRICANE WARNING FRM HAT S AND PAMLICO SND.
       TROP STRM WARN N OF HAT AND ALB SND.
       FLASH FLOOD WATCH FOR ALL ZONES EXCEPT OUTER BANKS.
       HIGH WIND WARNING FOR CSTL PLN.

FREDERICK

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 17, 10:55 AM EDTTornado WarningMHXOnslow35 min
Oct 17, 2:19 PM EDTFlash Flood WarningMHXBeaufort, Martin, Washington12 hr
Oct 17, 2:19 PM EDTFlash Flood WarningMHXGreene, Lenoir, Pitt12 hr
Oct 17, 2:19 PM EDTFlash Flood WarningMHXPamlico12 hr

Nearby

Flash Flood Warnings in North Carolina, 1999Every flash flood warning in 1999

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.