Alert archive / North Carolina / Flash Flood Warnings in 2003

Flash Flood Warning 73, NWS Blacksburg, VA

August 28, 2003Watauga County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Aug 28, 2003, 4:50 PM EDT for Watauga County, North Carolina. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 28, 2003, 4:50 PM EDT (20:50 UTC)
Expired
Aug 28, 2003, 7:45 PM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Counties, with a storm outline in the text

County Watauga County, NC

The radar

The Knoxville radar (KMRX), 139 km from the middle of the area, began a volume at 20:51 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, 8.8 hours before the alert went out and 177 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 2003-08-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2165 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 2003-08-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -6 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
2165 J/kg
Mixed-layer CIN
-70 J/kg
Mixed-layer LCL
1011 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
-6 m²/s²
0-3 km storm-relative helicity
-24 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 282054
FFWRNK
NCC189-282345-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
450 PM EDT THU AUG 28 2003

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WATAUGA COUNTY IN NORTHWEST NORTH CAROLINA

* UNTIL 745 PM EDT

* AT 450 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED SHOWERS 
AND THUNDERSTORMS LOCATED ACROSS WESTERN PORTIONS OF WATAUGA
COUNTY. THESE STORMS WERE MOVING NORTHWEST AT 20 MPH. COVE CREEK
CAME OUT OF IT BANKS AND FLOODED STREETS IN ZIONVILLE.  

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY.
MOVE TO HIGHER GROUND.

RELAY REPORTS OF FLOODING TO THE NATIONAL WEATHER SERVICE IN
BLACKSBURG BY CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

LAT...LON 3628 8197 3618 8183 3636 8167 3642 8184

$$

07
2 follow-up statements
000 
WGUS71 KRNK 282118
FFSRNK
NCC189-282345-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
518 PM EDT THU AUG 28 2003

...A FLASH FLOOD WARNING CONTINUES FOR THE FOLLOWING COUNTIES UNTIL
745 PM EDT...

  WATAUGA COUNTY IN NORTHWEST NORTH CAROLINA

HEAVY RAIN FROM EARLIER THUNDERSTORMS HAS CAUSED SOME SIGNIFICANT 
FLOODING OF COVE CREEK ALONG NORTH FORK ROAD IN ZIONVILLE IN THE 
NORTHWEST PART OF THE COUNTY.  AT LEAST TWO BRIDGES HAVE BEEN WASH 
AWAY AND THERE HAS BEEN SOME EROSION ON PORTIONS OF THE ROAD.  IF 
YOU ARE PLANNING TO TRAVEL IN THE PART OF THE COUNTY THIS 
EVENING...PLEASE CHOOSE AN ALTERNATE ROUTE.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED. MOVE TO
HIGHER GROUND.

STAY AWAY FROM DRAINAGE DITCHES...STORM SEWERS OR STREAMS...AS THEY
CAN BECOME DEADLY TORRENTS AFTER HEAVY RAIN.

RELAY YOUR REPORTS OF FLOODING TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

$$

JDS
000 
WGUS71 KRNK 282230
FFSRNK
NCC189-282245-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
630 PM EDT THU AUG 28 2003

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT UNTIL 745 PM EDT FOR 
WATAUGA COUNTY HAS BEEN CANCELED...

THE HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS AND CREEKS IN 
THE WARNED AREA HAVE RECEDED...ENDING THE FLASH FLOOD THREAT. EVEN 
THOUGH STREAMS AND CREEKS WERE RECEDING...PORTIONS OF NORTH FORK 
ROAD IN ZIONVILLE WERE CLOSED DUE TO FLOOD DAMAGE.  IF YOU ARE 
PLANNING TO TRAVEL IN THIS PART OF THE COUNTY THIS EVENING...PLEASE 
CHOOSE AN ALTERNATE ROUTE.

RELAY YOUR REPORTS OF FLOODING TO THE NATIONAL WEATHER SERVICE BY 
CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

$$

JDS

Nearby

Flash Flood Warnings in North Carolina, 2003Every flash flood warning in 2003

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.