Alert archive / North Carolina / Flash Flood Warnings in 2000

Flash Flood Warning 11, NWS Raleigh, NC

August 1, 2000Wake County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Aug 1, 2000, 8:53 PM EDT for Wake 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
Aug 1, 2000, 8:53 PM EDT (00:53 UTC)
Expired
Aug 1, 2000, 11:00 PM EDT
In force
2 hr
Issued by
NWS Raleigh, NC
Area
Whole counties

County Wake County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 0.9 hours before the alert went out and 117 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, Greensboro/Hi Pt, NC at 00:00Z on 2000-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 206 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, Greensboro/Hi Pt, NC at 00:00Z on 2000-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 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
206 J/kg
Mixed-layer CIN
-84 J/kg
Mixed-layer LCL
1010 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The text

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

000 
WGUS52 KRAH 020056
FFWRAH
NCC183-020300-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
853 PM EDT TUE AUG 1 2000

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 1100 PM EDT

* AT 853 PM EDT NATIONAL WEATHER SERVICE RADAR INDICATED
THUNDERSTORMS WITH VERY HEAVY RAIN OVER RALEIGH. THESE STORMS ARE
MOVING NORTH AT 30 MPH. HEAVY RAIN HAS FALLEN OVER THE PAST FEW DAYS
SATURATING THE GROUND OVER NORTH AND EAST RALEIGH. FLASH FLOODING IS
LIKELY ESPECIALLY IN AND AROUND URBAN AREAS OF NORTH RALEIGH NORTH
TO THE FALLS LAKE WATERSHED.

* MOTORISTS SHOULD BE ESPECIALLY CAUTIOUS AND NEVER DRIVE ACROSS
FLOODED ROADWAYS.

BADGETT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 1, 10:46 PM EDTFlash Flood WarningRAHWake2 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.