Alert archive / North Carolina / Flash Flood Warnings in 2000

Flash Flood Warning 40, NWS Raleigh, NC

September 3, 2000Warren County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Sep 3, 2000, 8:20 PM EDT for Warren County, North Carolina. It was in force for 115 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 3, 2000, 8:20 PM EDT (00:20 UTC)
Expired
Sep 3, 2000, 10:15 PM EDT
In force
115 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Warren County, NC

The radar

The Raleigh/Durham radar (KRAX), 88 km from the middle of the area, began a volume at 00:08 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

Roanoke, VA (KRNK), launched 00:00Z, 0.3 hours before the alert went out and 153 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, Roanoke, VA at 00:00Z on 2000-09-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 176 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, Roanoke, VA at 00:00Z on 2000-09-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 2 square meters per square second.1939Sfc1 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
176 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
816 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
2 m²/s²
0-3 km storm-relative helicity
6 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 
WGUS52 KRAH 040024
FFWRAH
NCC185-040215-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
820 PM EDT SUN SEP 3 2000

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 1015 PM EDT

* AT 820 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED
  THUNDERSTORMS WITH VERY HEAVY RAIN FROM WARRENTON TO AFTON TO
  ARCOLA. ADDITIONAL THUNDERSTORMS ARE EXPECTED TO REPEATEDLY
  DEVELOP TO THE SOUTHWEST AND TRAIN OVER THE REGION.

* RADAR INDICATES 2 TO 3.5 INCHES OF RAIN HAS ALREADY FALLEN
  IN SOUTH CENTRAL WARREN COUNTY AND AN ADDITIONAL 1 TO 2 INCHES
  ARE LIKELY BETWEE|N 820 AND 920 PM.

* REMEMBER NEVER DRIVE YOUR VEHICLE THROUGH FLOWING WATER. FLOOD
  WATERS ARE ALMOST IMPOSSIBLE TO DETECT AT NIGHT.

PWB

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 4, 3:20 PM EDTFlash Flood WarningRAHWake3 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; radar from the NEXRAD Level II archive.