Alert archive / North Carolina / Flash Flood Warnings in 1999

Flash Flood Warning 30, NWS Raleigh, NC

September 27, 1999Edgecombe County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Sep 27, 1999, 11:12 PM EDT for Edgecombe County, North Carolina. It was in force for 108 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 27, 1999, 11:12 PM EDT (03:12 UTC)
Expired: Sep 28, 1999, 1:00 AM EDT
In force: 108 min
Issued by: NWS Raleigh, NC
Area: Whole counties

County Edgecombe County, NC

The radar

The Raleigh/Durham radar (KRAX), 85 km from the middle of the area, began a volume at 03:11 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 00:00Z, 3.2 hours before the alert went out and 142 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: 382 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 696 m above ground
0-6 km bulk shear: 20 kt
0-1 km storm-relative helicity: 10 m²/s²
0-3 km storm-relative helicity: 105 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 KRDU 280310
FFWRDU
NCC065-280500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
1112 PM EDT MON SEP 27 1999

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EDGECOMBE COUNTY IN NORTH CAROLINA

* UNTIL 100 AM EDT

* AT 11 PM EDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  HEAVY RAIN IN THE WESTERN PART OF EDGECOMBE COUNTY... DRIFTING
  SLOWLY NORTHEAST.

* RAINFALL OF UP TO ONE INCH PER HOUR WILL CAUSE EXCESSIVE RUNOFF
  INTO CREEKS AND STREAMS... SUCH AS TOWN CREEK IN THE PINETOPS
  AREA OF SOUTHERN EDGECOMBE COUNTY... AND PONDING OF WATER ON
  HIGHWAYS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RE8COGNIZE THE
DANGER OF FLOODING.  MOST FLOODING FATALITIES ARE CAUSED BY PEOPLE
ATTEMPTING TO DRIVE ACROSS FLOODED ROADWAYS...ESPECIALLY AT NIGHT.

RFG

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 Raleigh, NC wrote its last area forecast discussion before this flash flood warning went out at Sep 27, 9:35 PM EDT, 1 hour 37 minutes earlier.

Area forecast discussion, Sep 27, 9:35 PM EDT, 1 hour 37 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE RALEIGH NC
935 PM EDT MON SEP 27 1999

AREA RAOBS AT 00Z CONTINUE TO SHOW A DEEPLY SATURATED AIRMASS OVER
CENTRAL NC WITH MOIST ADIABATIC CONDITIONS THROUGHOUT THE LOWER TO
MID LEVELS.  LOW LEVEL WINDS CONTINUE FROM THE SOUTHEAST WITH
TRAJECTORIES OFF THE GULF STREAM ATLANTIC AND WEAK TO MODERATE
SYNOPTIC SCALE ISENTROPIC LIFT.

GIVEN THESE CONDITIONS AND WEAK IMPULSES IN THE UPPER LEVELS FROM
THE SOUTHWEST... SHOWERS SHOULD CONTINUE TO DEVELOP OVER CENTRAL NC
TONIGHT. EVEN WITH AN APPARENT LULL BETWEEN IMPULSES NOW... FLASH
FLOOD WATCH WILL BE KEPT IN EFFECT OVER EASTERN CWA COUNTIES BECAUSE
OF THE POTENTIAL FOR REDEVELOPMENT OVERNIGHT AND THE SENSITIVITY TO
FLOODING IN THOSE COUNTIES.

THEREFORE...NOT MUCH CHANGE IS EXPECTED IN THE ACTUAL NUMBERS OF THE
FORECAST FOR TONIGHT.  THE WELL MIXED TROPICAL AIRMASS IS NOT AS
CONDUCIVE TO THUNDERSTORM DEVELOPMENT AND MUCH AS MODERATE TO HEAVY
SHOWERS.  THE MENTION OF THUNDERSTORMS WILL BE DROPPED IN SOME IF
NOT ALL OF THE GROUPS THE REMAINDER OF TONIGHT.

.RAH...FLASH FLOOD WATCH TONIGHT FOR GRANVILLE-VANCE-WARREN-HALIFAX-
DURHAM-WAKE-FRANKLIN-NASH-EDGECOMBE-WILSON-JOHNSTON-WAYNE-SAMPSON.

RFG

In the hours before

Local storm report, Sep 27, 8:41 PM EDT, 2 hours 31 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
841 PM EDT MON SEP 27 1999

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0830 PM    PRINCETON                 NC   FLOODING
09/27/99   JOHNSTON                       A CREEK WAS REPORTED 2
                                          FEET OUT OF ITS BANKS ON
                                          HARPER HOUSE ROAD IN SE
                                          JOHNSTON COUNTY (ABOUT 15
                                          MILES S OF PRINCETON).

Local storm report, Sep 27, 8:51 PM EDT, 2 hours 21 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
851 PM EDT MON SEP 27 1999

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0842 PM    MT OLIVE                  NC   FLOODING
09/27/99   WAYNE                          WATER IS CROSSING THE ROAD
                                          ON HWY 55 IN SOUTHERN
                                          WAYNE CO. AND HWY 111.

0847 PM    MT OLIVE                  NC   FLOODING
09/27/99   WAYNE                          WATER IS CROSSING THE ROAD
                                          ON HWY 55 AND HWY 111 IN
                                          SOUTHERN WAYNE CO.

Local storm report, Sep 27, 8:53 PM EDT, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
853 PM EDT MON SEP 27 1999

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0852 PM                              NC   FLOODING
09/27/99   WILSON                         NUMEROUS STREETS AND ROADS
                                          ARE FLOODING THOUGHOUT THE
                                          COUNTY.

Local storm report, Sep 27, 8:53 PM EDT, 2 hours 19 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE RALEIGH/DURHAM NC
853 PM EDT MON SEP 27 1999

TIME(EDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0852 PM                              NC   FLOODING
09/27/99   WILSON                         NUMEROUS STREETS AND ROADS
                                          ARE FLOODING THOUGHOUT THE
                                          COUNTY.

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 27, 9:00 PM EDT	Flash Flood Warning	RAH	Wayne, Wilson	60 min
Sep 28, 1:04 AM EDT	Flash Flood Warning	RAH	Edgecombe	4 hr
Sep 28, 1:23 AM EDT	Flash Flood Warning	RAH	Wayne	3 hr
Sep 28, 4:34 AM EDT	Flash Flood Warning	RAH	Wayne	6 hr
Sep 28, 7:11 AM EDT	Flash Flood Warning	RAH	Sampson	4 hr
Sep 28, 7:37 AM EDT	Flash Flood Warning	RAH	Johnston, Nash, Wilson	3 hr
Sep 28, 8:19 AM EDT	Flash Flood Warning	RAH	Edgecombe	4 hr
Sep 28, 11:07 AM EDT	Flash Flood Warning	RAH	Johnston, Wayne, Wilson	2 hr
Sep 28, 11:07 AM EDT	Flash Flood Warning	RAH	Nash	2 hr
Sep 28, 4:29 PM EDT	Flash Flood Warning	RAH	Edgecombe, Johnston, Nash, Wayne, Wilson	4 hr
Sep 28, 4:29 PM EDT	Flash Flood Warning	RAH	Sampson	4 hr
Sep 28, 4:29 PM EDT	Flash Flood Warning	RAH	Wake	4 hr
Sep 28, 5:27 PM EDT	Flash Flood Warning	RAH	Durham, Orange	3 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; radar from the NEXRAD Level II archive.