Alert archive / North Carolina / Flash Flood Warnings in 2000

Flash Flood Warning 12, NWS Blacksburg, VA

June 27, 2000Caswell County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Jun 27, 2000, 7:10 PM EDT for Caswell 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
Jun 27, 2000, 7:10 PM EDT (23:10 UTC)
Expired
Jun 27, 2000, 9:15 PM EDT
In force
2 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Caswell County, NC

The radar

The Roanoke radar (KFCX), 109 km from the middle of the area, began a volume at 23:14 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 11.2 hours before the alert went out and 62 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 2000-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 81 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°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 2000-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -32 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
81 J/kg
Mixed-layer CIN
-164 J/kg
Mixed-layer LCL
1228 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-32 m²/s²
0-3 km storm-relative helicity
-19 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 
WGUS51 KRNK 272313
FFWRNK
NCC033-280115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
710 PM EDT TUE JUN 27 2000

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHERN CASWELL COUNTY IN NORTH CENTRAL NORTH CAROLINA...

* UNTIL 915 PM EDT.

* AT 710 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  A PERSISTENT AREA OF THUNDERSTORMS...WITH VERY HEAVY RAINFALL
  OVER SOUTH CENTRAL CASWELL COUNTY...NEAR ANDERSON.

LOCATIONS THREATENED BY HEAVY RAIN THROUGH 915 PM EDT INCLUDE

   JERICHO...
   ANDERSON...
   PROSPECT HILL...

SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH 
FLOODING ALONG HYCO AND TOMS CREEKS.

<<CALL TO ACTION>>SMALL CREEKS AND STREAMS WILL RAPIDLY FLOOD...
POSSIBLY WASHING OUT ROADS AND FLOODING NEARBY LOW AREAS.

$$
LAT...LON 3626 7952 3625 7917 3653 7916 3642 7931

PEM

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 26, 8:08 PM EDTSevere Thunderstorm WarningRNKRockingham, Stokes52 min
Jun 27, 1:52 PM EDTFlash Flood WarningRNKAlleghany, Ashe3 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.