Alert archive / North Carolina / Flash Flood Warnings in 2000

Flash Flood Warning 30, NWS Raleigh, NC

September 1, 2000Guilford County, North Carolina

NWS Raleigh, NC issued this flash flood warning at Sep 1, 2000, 7:02 PM EDT for Guilford County, North Carolina. It was in force for 88 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 1, 2000, 7:02 PM EDT (23:02 UTC)
Expired
Sep 1, 2000, 8:30 PM EDT
In force
88 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Guilford County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.0 hours before the alert went out and 10 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 12:00Z on 2000-09-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 805 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 12:00Z on 2000-09-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 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
805 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
572 m above ground
0-6 km bulk shear
14 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
30 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 012304
FFWRAH
NCC081-020030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE RALEIGH NC
702 PM EDT FRI SEP 1 2000

THE NATIONAL WEATHER SERVICE IN RALEIGH HAS ISSUED A

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

* UNTIL 830 PM EDT

* AT 702 PM EDT SEVERE WEATHER SPOTTERS REPORTED THUNDERSTORMS
  WITH VERY HEAVY RAIN OVER THE WARNED AREA.

* SLOW MOVING THUNDERSTORMS ARE PRO	DUCING TORRENTIAL RAINFALL AT A
  RATE OF ONE TO TWO INCHES PER HOUR IN THE WARNED AREA.

DO NOT DRIVE THROUGH WATER COVERED ROADWAYS.  MOVING WATER OF 1 1/2
TO 2 FEET DEEP CAN SWEEP YOUR CAR OFF THE ROAD.

RFG

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.