Alert archive / North Carolina / Flash Flood Warnings in 1998

Flash Flood Warning 10, NWS Newport/Morehead City, NC

July 17, 1998Duplin County, North Carolina

NWS Newport/Morehead City, NC issued this flash flood warning at Jul 17, 1998, 7:42 PM EDT for Duplin 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
Jul 17, 1998, 7:42 PM EDT (23:42 UTC)
Expired
Jul 17, 1998, 9:45 PM EDT
In force
2 hr
Issued by
NWS Newport/Morehead City, NC
Area
Whole counties

County Duplin County, NC

The radar

The Raleigh/Durham radar (KRAX), 96 km from the middle of the area, began a volume at 23:41 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, 11.7 hours before the alert went out and 98 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 1998-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 985 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 1998-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 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
985 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
487 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
-2 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KILM 172342
FFWMHX
NCC061-180145-

BULLETIN - EAS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE NEWPORT NC
ISSUED BY NATIONAL WEATHER SERVICE WILMINGTON NC
742 PM EDT FRI JUL 17 1998

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

* FLOOD WARNING FOR...
  SOUTHERN DUPLIN COUNTY IN EAST CENTRAL NORTH CAROLINA

* UNTIL 945 PM EDT

* AT 740 PM EDT...DOPPLER WEATHER RADAR SHOWED 1 HOUR RAINFALL
  AMOUNTS 3.5 INCHES ALONG HIGHWAYS 50 AND 41 BETWEEN GREENEVERS
  AND CHINQUAPIN. THIS HEAVY RAINFALL WAS DUE TO SLOW MOVING
  THUNDERSTORMS


DO NOT DRIVE THROUGH FLOODED AREAS. THE ROADBED MAY NOT BE INTACT
UNDER THE WATER. IF YOUR VEHICLE STALLS...ABANDON IT IMMEDIATELY
AND SEEK HIGHERb GROUND.

HEWITT/JME

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 Jul 17, 1:42 PM EDT, 6 hours earlier.

Area forecast discussion, Jul 17, 1:42 PM EDT, 6 hours before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE NEWPORT/MOREHEAD CITY NC
142 PM EDT FRI JUL 17 1998

ZFP: WEAK TRF/FRNT WILL LINGER ACRS RGN THROUGH SAT THEN GRADUALLY
DISSIPATE. UPPER LVL TRF EXPECTED TO REMAIN JUST W WITH VERY WEAK
IMPULSES PASSING THRU FROM TIME TO TIME. LOW LVL AIRMASS WL REMAIN
VERY MOIST AND WITH DAYTIME HEATING WILL LIKELY SEE DECENT INSTAB. WITH
POTENTIAL FOR WEAK UVM FROM PASSING VORTS AND SOME DIFL ALFT THERE WL
BE THREAT OF CNVCTN ABOUT ANY TIME NXT CPL DYS. THINK BEST CHCS WL BE
AFTN/EVENING BUT PROB BEST TO KEEP AT LEAST SMALL POP EVEN OVRNGHT.
SHLD SEE DECENT AMOUNT OF SUN NXT CPL DAYS WITH HIGHS CPL DGRS EITHER
SIDE OF 90 MST SPOTS...MILD NIGHTS WITH MAINLY MID 70S.

CWF: STILL ROUGH SEAS S OF HAT BUT PROB CAN KEEP A NOTCH BELOW SCA.
WITH SW FLOW EXPECTED TO PERSIST SRN WTRS WL KEEP SEAS UP THRU PD. WEAK
TRF EXPECTED TO REMAIN INLAND HOWEVER MAY GET VERY CLOSE TO NRN WTRS AND
SNDS LTR SAT INTO SUN. MAY WORD VRBL NRN SCTNS AS GRDNT WL BE VERY LOOSE
AND WITH CNVCTN COULD EASILY SEE PD OF N WINDS. LOOKS LIKE WDLY SCT TO
SCT SHRA/TSTM THRU PD.

.MHX...NONE.

FREDERICK

Nearby

Flash Flood Warnings in North Carolina, 1998Every 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; radar from the NEXRAD Level II archive.