Alert archive / North Carolina / Flash Flood Warnings in 1999

Flash Flood Warning 21, NWS Newport/Morehead City, NC

October 17, 1999Pamlico County, North Carolina

NWS Newport/Morehead City, NC issued this flash flood warning at Oct 17, 1999, 2:19 PM EDT for Pamlico County, 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

County Pamlico County, NC

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 6.3 hours before the alert went out and 46 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: 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

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

000 
TTAA00 KHAT 171819
FFWMHX
NCC013-031-049-061-079-103-107-117-133-137-147-187-180600-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE NEWPORT-MOREHEAD CITY NC
219 PM EDT SUN OCT 17 1999

THE NATIONAL WEATHER SERVICE IN NEWPORT HAS ISSUED A

* FLASH FLOOD WARNING IN EASTERN NORTH CAROLINA FOR...
  MARTIN COUNTY
  JONES COUNTY
  DUPLIN COUNTY
  CARTERET COUNTY
  LENOIR COUNTY
  WASHINGTON COUNTY
  BEAUFORT COUNTY
  GREENE COUNTY
  CRAVEN COUNTY
  PAMLICO COUNTY
  ONSLOW COUNTY
  PITT COUNTY

* UNTIL 200 AM EDT...MONDAY MORNING.

* DOPPLER RADAR INDICATES ONE TO THREE INCHES OF RAIN HAS FALLEN 
OVER MUCH OF EASTERN NORTH CAROLINA. HEAVY RAIN WILL CONTINUE 
THROUGH THE AFTERNOON AND INTO TONIGHT AS HURRICANE IRENE APPROACHES.
ADDITIONAL RAINFALL OF OVER THREE INCHES WILL LIKELY CAUSE 
WIDESPREAD FLOODING OF CREEKS...STREAMS AND OTHER LOW LYING AREAS.

* THROUGH 6 PM...AREAS IN ONSLOW...JONES...DUPLIN AND CRAVEN 
COUNTIES WILL BE THE MOST LIKELY TO EXPERIENCE THE FIRST FLOODING 
FROM HURRICANE IRENE. OTHER LOCATIONS CAN EXPECT FLOODING LATER THIS 
AFTERNOON AND ESPECIALLY THIS EVENING AND TONIGHT.  

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

PLEASE REPORT FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR
RELAY TO THE NATIO&NAL WEATHER SERVICE.

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.

Issued	Product	Office	Counties	Lasted
Oct 17, 10:55 AM EDT	Tornado Warning	MHX	Onslow	35 min
Oct 17, 2:19 PM EDT	Flash Flood Warning	MHX	Beaufort, Martin, Washington	12 hr
Oct 17, 2:19 PM EDT	Flash Flood Warning	MHX	Greene, Lenoir, Pitt	12 hr
Oct 17, 2:19 PM EDT	Flash Flood Warning	MHX	Carteret, Craven, Duplin, Jones, Onslow	12 hr

Nearby

Flash Flood Warnings in North Carolina, 1999 Every 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.