Alert archive / North Carolina / Flash Flood Warnings in 2002

Flash Flood Warning 24, NWS Blacksburg, VA

July 2, 2002Watauga County, North Carolina

NWS Blacksburg, VA issued this flash flood warning at Jul 2, 2002, 6:42 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 counties it named.

The facts

Issued
Jul 2, 2002, 6:42 PM EDT (22:42 UTC)
Expired
Jul 2, 2002, 9:15 PM EDT
In force
3 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Watauga County, NC

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.7 hours before the alert went out and 162 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 2002-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1124 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 2002-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 46 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
1124 J/kg
Mixed-layer CIN
-86 J/kg
Mixed-layer LCL
1269 m above ground
0-6 km bulk shear
13 kt
0-1 km storm-relative helicity
46 m²/s²
0-3 km storm-relative helicity
47 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 022242
FFWRNK
NCC189-030115-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
640 PM EDT TUE JUL 2 2002

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

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

* UNTIL 915 PM EDT

* AT 640 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED 
  THUNDERSTORMS WITH VERY HEAVY RAINFALL IN WESTERN PORTIONS OF
  THE COUNTY NEAR ROMINGER AND VALLE CRUCIS.  THESE STORMS WERE
  MOVING VERY SLOWLY TO THE SOUTHWEST.  CREEKS AND STREAMS 
  IN AND AROUND THESE AREAS WILL LIKELY FLOOD THROUGH MID-EVENING.

* OTHER LOCATIONS THREATENED BY HEAVY RAIN INCLUDE...LOVILL...MEAT
  CAMP AND SILVERSTONE...

<<CALL TO ACTION>>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 IN
BLACKSBURG BY CALLING TOLL FREE...1...8 6 6...2 1 5...4 3 2 4.

$$

09

LAT...LON 3628 8162 3618 8175 3613 8195 3637 8173
1 follow-up statement
000 
WGUS71 KRNK 030125
FFSRNK
NCC189-030215-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
915 PM EDT TUE JUL 2 2002

...FLASH FLOOD WARNING EXPIRED FOR WATAUGA COUNTY...

AT 9:15 PM EDT...NATIONAL WEATHER SERVICE RADAR INDICATED THE 
RAINFALL WAS ENDING ACROSS WATAUGA COUNTY...AND THE FLOOD THREAT HAS 
ENDED. THE THUNDERSTORMS WITH THE HEAVY RAINS HAVE MOVED SOUTH OF 
THE WARNED AREA. THUS...THE FLASH FLOOD WARNING WAS ALLOWED TO 
EXPIRE.

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.

$$

LAT...LON 3617 8156 3637 8171 3620 8199 3599 8189

07

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 2, 4:16 PM EDTSevere Thunderstorm WarningRNKAlleghany29 min
Jul 2, 4:56 PM EDTSevere Thunderstorm WarningRNKWilkes34 min
Jul 2, 5:24 PM EDTSevere Thunderstorm WarningRNKAlleghany, Ashe36 min
Jul 2, 6:13 PM EDTSevere Thunderstorm WarningRNKStokes32 min
Jul 2, 6:28 PM EDTSevere Thunderstorm WarningRNKRockingham32 min

Nearby

Flash Flood Warnings in North Carolina, 2002Every flash flood warning in 2002

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.