Alert archive / West Virginia / Flash Flood Warnings in 2004

Flash Flood Warning 1, NWS Blacksburg, VA

April 26, 2004Greenbrier County, West Virginia

NWS Blacksburg, VA issued this flash flood warning at Apr 26, 2004, 12:18 AM EDT for Greenbrier County, West Virginia. It was in force for 4 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
Apr 26, 2004, 12:18 AM EDT (04:18 UTC)
Expired
Apr 26, 2004, 4:15 AM EDT
In force
4 hr
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Greenbrier County, WV

The radar

The Roanoke radar (KFCX), 104 km from the middle of the area, began a volume at 04:21 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

Roanoke, VA (KRNK), launched 00:00Z, 4.3 hours before the alert went out and 118 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, Roanoke, VA at 00:00Z on 2004-04-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 142 joules per kilogram.LCLEL10008507005003002001001 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, Roanoke, VA at 00:00Z on 2004-04-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 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
142 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1219 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KRNK 260420
FFWRNK
WVC025-260815-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
1218 AM EDT MON APR 26 2004

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN GREENBRIER COUNTY IN SOUTHEAST WEST VIRGINIA

* UNTIL 415 AM EDT

* AT 1218 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR
  INDICATED THAT SEVERAL QUICK MOVING...HEAVY RAIN PRODUCING
  THUNDERSTORMS HAD BEEN PROGRESSING ACROSS THE WESTERN
  PART OF GREENBRIER COUNTY SINCE ABOUT 1000 PM EDT. 
  ADDITIONAL HEAVY RAIN IS POSSIBLE IN THE WARNING AREA OVER
  THE NEXT HOUR OR TWO. THE RAIN THAT HAS FALLEN...COMBINED WITH
  WHAT HAS FALLEN SO FAR...MAY BE ENOUGH TO PROMPT FLASH FLOODING
  IN PARTS OF THE WARNED AREA. THE AREA OF GREATEST CONCERN
  WILL BE NEAR WILLIAMSBURG...TROUT AND LEONARD.

* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
  RAINELLE...QUINWOOD...MEADOW BLUFF...DUO...BINGHAM AND ANJEAN. 

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

$$

15
2 follow-up statements
000 
WGUS71 KRNK 260648
FFSRNK
WVC025-260815-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
245 AM EDT MON APR 26 2004

...A FLASH FLOOD WARNING CONTINUES UNTIL 415 AM EDT FOR WESTERN
GREENBRIER COUNTY...

AT 245 AM EDT...DOPPLER RADAR INDICATED THAT THE HEAVY RAIN
PRODUCING SHOWERS AND THUNDERSTORMS HAVE EXITED THE WARNED AREA.
ONLY ADDITIONAL LIGHT RAIN WILL REMAIN POSSIBLE THROUGHOUT THE
DURATION OF THE WARNING. HOWEVER...FLASH FLOODING REMAINS A CONCERN
AS RUNOFF FROM THE EARLIER HEAVIER RAINS CONTINUES TO FLOW TO INTO
LOW LYING AREAS...DITCHES AND SMALL STREAMS.

AFFECTED LOCATIONS INCLUDE ANJEAN...ASBURY...BINGHAM...DUO...FALLING
SPRING...LEONARD...MEADOW BLUFF...QUINWOOD...RAINELLE...RENICK...
RUPERT...TROUT AND WILLIAMSBURG

LAT...LON 3805 8026 3772 8063 3793 8080 3801 8077
          3811 8091 3808 8072 3827 8045 3823 8037
          3812 8038

$$

15
000 
WGUS71 KRNK 260813
FFSRNK
WVC025-260825-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
410 AM EDT MON APR 26 2004

...THE FLASH FLOOD WARNING WHICH WAS IN EFFECT FOR WESTERN 
GREENBRIER COUNTY WILL EXPIRE AT 415 AM EDT...


AT 408 AM...RADAR CONTINUED TO SHOW AN AREA OF LIGHT TO MODERATE 
RAINFALL OCCURRING ACROSS THE AREA. RADAR AND GAGE ESTIMATES 
INDICATED THAT AS MUCH AS 2 INCHES OF RAIN HAD FALLEN OVER THE 
WARNED REGION EARLIER TONIGHT. RUNOFF FROM THIS HEAVY RAIN WILL 
LIKELY CAUSE MANY STREAMS AND CREEKS TO REMAIN NEAR BANKFULL INTO 
EARLY THIS MORNING. HOWEVER THE INTENSITY OF THE RAINFALL HAD 
CONTINUED TO DECREASE DURING THE PAST HOUR...AND THUS THE WARNING 
WILL BE ALLOWED TO EXPIRE. NO REPORTS OF FLOODING HAVE BEEN RECEIVED.

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.

$$

Nearby

Flash Flood Warnings in West Virginia, 2004Every flash flood warning in 2004

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.