Alert archive / North Carolina / Flash Flood Warnings in 1994

Flash Flood Warning 8, NWS Blacksburg, VA

August 17, 1994Alleghany County, Wilkes County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Aug 17, 1994, 6:00 AM EDT for Alleghany County, Wilkes County, North Carolina. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Aug 17, 1994, 6:00 AM EDT (10:00 UTC)
Expired
Aug 17, 1994, 9:00 AM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

Counties Alleghany County, NC, Wilkes County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 10.0 hours before the alert went out and 116 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 1994-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1105 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 1994-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 141 square meters per square second.193958Sfc1 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
1105 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
648 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
141 m²/s²
0-3 km storm-relative helicity
219 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KGSO 171000
FFWGSO
NCC005-193-171300-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE GREENSBORO NC
600 AM EDT WED AUG 17 1994
 
THE NATIONAL WEATHER SERVICE IN GREENSBORO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  900 AM EDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN NORTHWEST NORTH CAROLINA
 
   ...ALLEGHANY COUNTY...WILKES COUNTY
 
REPORTS FROM WILKES AND ALLEGHANY COUNTY INDICATED THAT FLOODING WAS
STILL OCCURRING THROUGHOUT THE COUNTIES. CONDITIONS ARE NOT EXPECTED TO
IMPROVE ANYTIME SOON AS A LARGE AREA OF RAIN REMAINS OVER THE NORTHERN
MOUNTAINS AND NORTHERN FOOTHILLS. THIS AREA IS MOVING NORTH-NORTHWEST AT
30 MPH.
 
AUTHORITIES IN WILKES COUNTY REPORTED THAT THE YADKIN RIVER WAS OUT OF
ITS BANKS IN THE CITY OF NORTH WILKESBORO. OTHER SMALLER CREEKS WERE
ALSO OUT THEIR BANKS THROUGHOUT THE COUNTY. A NUMBER OF BRIDGES ACROSS
THE COUNTY WERE REPORTED TO BE UNDER WATER.
 
IN ALLEGHANY COUNTY BRIDGES AROUND THE COUNTY ARE ALSO UNDER WATER AND
CREEKS ARE OUT OF THEIR BANKS. ALONG WITH THE FLOODING IN THE COUNTY,
THE ALLEGHANY COUNTY AUTHORITIES ARE REPORTING THAT MUDSLIDES ARE
HAPPENING DUE TO THE RAIN SOAKED SOIL. TREES HAVE ALSO FALLEN ACROSS
ROADWAYS IN THE COUNTY DUE TO THE HEAVY RAIN.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
GTR

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Aug 17, 2:14 AM EDT, 3 hours 46 minutes before
VAZ058-044-170815-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LYNCHBURG VA
214 AM EDT WED AUG 17 1994

...FLASH FLOOD WATCH IN EFFECT TIL 8 AM EDT THIS MORNING...

AT 2 AM A BROAD AREA OF PRECIPITATION IS FALLING ACROSS SOUTHWEST
VIRGINIA. SCATTERED SHOWERS AND THUNDERSTORMS FROM NORTH CENTRAL
NORTH CAROLINA ARE MOVING INTO SOUTHERN PITTSYLVANIA AND HALIFAX
COUNTIES VIRGINIA.

SOME OF THESE STORMS HAVE THE POTENTIAL TO ONE HALF TO ONE INCH
OF RAIN IN AN HOUR. THE COMBINATION OF SOAKING RAINS YESTERDAY
AND HEAVY DOWNPOURS THIS MORNING COULD CAUSE FLOODING OF SMALL
CREEKS AND STREAMS IN SOUTH CENTRAL VIRGINIA. PEOPLE IN FLOOD
PRONE AREAS SHOULD BE PREPARED TO MOVE TO HIGHER GROUND SHOULD
FLOODING OCCUR.

MEADOWS

NNNN
Special weather statement, Aug 17, 2:14 AM EDT, 3 hours 46 minutes before
VAZ058-044-170815-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE LYNCHBURG VA
214 AM EDT WED AUG 17 1994

...FLASH FLOOD WATCH IN EFFECT TIL 8 AM EDT THIS MORNING...

AT 2 AM A BROAD AREA OF PRECIPITATION IS FALLING ACROSS SOUTHWEST
VIRGINIA. SCATTERED SHOWERS AND THUNDERSTORMS FROM NORTH CENTRAL
NORTH CAROLINA ARE MOVING INTO SOUTHERN PITTSYLVANIA AND HALIFAX
COUNTIES VIRGINIA.

SOME OF THESE STORMS HAVE THE POTENTIAL TO ONE HALF TO ONE INCH
OF RAIN IN AN HOUR. THE COMBINATION OF SOAKING RAINS YESTERDAY
AND HEAVY DOWNPOURS THIS MORNING COULD CAUSE FLOODING OF SMALL
CREEKS AND STREAMS IN SOUTH CENTRAL VIRGINIA. PEOPLE IN FLOOD
PRONE AREAS SHOULD BE PREPARED TO MOVE TO HIGHER GROUND SHOULD
FLOODING OCCUR.

MEADOWS

NNNN

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 8:03 PM EDTTornado WarningRNKStokes27 min
Aug 16, 8:28 PM EDTTornado WarningRNKAlleghany, Wilkes32 min
Aug 16, 8:59 PM EDTTornado WarningRNKAlleghany16 min
Aug 16, 9:26 PM EDTTornado WarningRNKAlexander34 min
Aug 17, 12:03 AM EDTTornado WarningRNKIredell27 min
Aug 17, 12:59 AM EDTTornado WarningRNKIredell16 min
Aug 17, 1:04 AM EDTFlash Flood WarningRNKIredell3 hr
Aug 17, 3:01 AM EDTFlash Flood WarningRNKAlleghany3 hr
Aug 17, 3:19 AM EDTFlash Flood WarningRNKWilkes3 hr

Nearby

Flash Flood Warnings in North Carolina, 1994Every flash flood warning in 1994

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.