Alert archive / West Virginia / Flash Flood Warnings in 2001

Flash Flood Warning 9, NWS Charleston, WV

May 17, 2001Boone County, West Virginia

NWS Charleston, WV issued this flash flood warning at May 17, 2001, 5:53 AM EDT for Boone 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: May 17, 2001, 5:53 AM EDT (09:53 UTC)
Expired: May 17, 2001, 10:00 AM EDT
In force: 4 hr
Issued by: NWS Charleston, WV
Area: Whole counties

County Boone County, WV

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 9.9 hours before the alert went out and 239 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 880 J/kg
Mixed-layer CIN: -47 J/kg
Mixed-layer LCL: 1116 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 212 m²/s²
0-3 km storm-relative helicity: 334 m²/s²
Significant tornado parameter: 1.3
Supercell composite: 15.2

Open this sounding in Storm Lab

The text

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

000 
WGUS51 KRLX 170955
FFWRLX
WVC005-171400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
553 AM EDT THU MAY 17 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLOOD WARNING FOR...
  BOONE COUNTY IN WEST VIRGINIA...

* UNTIL 1000 AM EDT...

* HEAVY RAINFALL HAS ENDED ACROSS THE AREA AND RUNOFF IS REACHING
  AREA STREAMS AND CREEKS CAUSING RAPID RISES.

* SOME ROADWAYS HAVE BEEN WASHED OUT. MOTORISTS SHOULD BE EXTREMELY 
  CAREFUL THIS MORNING.

<<CALL TO ACTION>> 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 OTHER 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.

PLEASE REPORT HIGH WATER...HAIL OR STRONG WINDS TO THE NATIONAL
WEATHER SERVICE BY CALLING TOLL FREE...877-633-6772.

$$

LAT...LON 3777 8157 3794 8157 3801 8146 3811 8153
          3818 8165 3822 8165 3823 8172 3815 8193
          3805 8197 3803 8191 3797 8196 3794 8180
          3787 8178

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 17, 12:19 AM EDT	Flash Flood Warning	RLX	Raleigh	3 hr
May 17, 1:43 AM EDT	Flash Flood Warning	RLX	Wyoming	3 hr
May 17, 3:00 AM EDT	Flash Flood Warning	RLX	Boone	3 hr
May 17, 4:37 PM EDT	Severe Thunderstorm Warning	RLX	Jackson, Wood	38 min
May 17, 4:37 PM EDT	Severe Thunderstorm Warning	RLX	Cabell, Mason	38 min
May 17, 4:56 PM EDT	Severe Thunderstorm Warning	RLX	Putnam	34 min
May 17, 5:00 PM EDT	Severe Thunderstorm Warning	RLX	Wirt	30 min
May 17, 5:12 PM EDT	Severe Thunderstorm Warning	RLX	Boone, Jackson, Kanawha, Roane	48 min
May 17, 5:37 PM EDT	Severe Thunderstorm Warning	RLX	Fayette, Raleigh	38 min
May 17, 5:37 PM EDT	Severe Thunderstorm Warning	RLX	Clay, Nicholas	38 min
May 17, 6:15 PM EDT	Severe Thunderstorm Warning	RLX	Braxton, Webster	30 min

Nearby

Flash Flood Warnings in West Virginia, 2001 Every flash flood warning in 2001

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.