Alert archive / West Virginia / Flash Flood Warnings in 2016

Flash Flood Warning 3, NWS Blacksburg, VA

May 1, 2016Greenbrier County, Summers County, West Virginia

NWS Blacksburg, VA issued this flash flood warning at May 1, 2016, 8:15 PM EDT for Greenbrier County, Summers County, West Virginia. It was in force for 6 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: May 1, 2016, 8:15 PM EDT (00:15 UTC)
Expired: May 2, 2016, 2:15 AM EDT
In force: 6 hr
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Flood severity: None

Counties Greenbrier County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 95 km from the middle of the area, began a volume at 00:18 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, 0.3 hours before the alert went out and 130 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: 911 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1315 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 125 m²/s²
0-3 km storm-relative helicity: 115 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.1

Open this sounding in Storm Lab

The text

As transmitted.

864 
WGUS51 KRNK 020015
FFWRNK
WVC025-089-020615-
/O.NEW.KRNK.FF.W.0003.160502T0015Z-160502T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BLACKSBURG VA
815 PM EDT SUN MAY 1 2016

THE NATIONAL WEATHER SERVICE IN BLACKSBURG HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN SUMMERS COUNTY IN WEST VIRGINIA...
  SOUTHWESTERN GREENBRIER COUNTY IN WEST VIRGINIA...

* UNTIL 215 AM EDT
    
* AT 815 PM EDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LEWISBURG...
  HINTON...
  ALDERSON...
  SANDSTONE...
  AND HIX. 

THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
EAGLE BRANCH...
BUGGY BRANCH...
HOWARD CREEK...
BEECH RUN...
AND PATTERSON CREEK.

THIS INCLUDES THE WEST VIRGINIA STATE FAIRGROUNDS.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.

&&

LAT...LON 3800 8050 3783 8029 3772 8062 3773 8066
      3770 8067 3762 8091 3771 8097 3772 8095
      3770 8091 3767 8090 3769 8088 3773 8090
      3775 8092 3777 8089 3782 8094 3787 8081
      3787 8075 3790 8077

$$

DS

2 follow-up statements

794 
WGUS71 KRNK 020135
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
935 PM EDT SUN MAY 1 2016

WVC025-089-020615-
/O.CON.KRNK.FF.W.0003.000000T0000Z-160502T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUMMERS WV-GREENBRIER WV-
935 PM EDT SUN MAY 1 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 215 AM EDT FOR 
NORTHEASTERN SUMMERS AND SOUTHWESTERN GREENBRIER COUNTIES...

AT 931 PM EDT...DOPPLER RADAR INDICATED THAT THE HEAVY RAIN FROM
THUNDERSTORMS THAT PROMPTED THE WARNING HAS EXITED THE WARNED AREA.
UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN. HOWEVER...RUNOFF
FROM THESE EARLIER STORMS...AND ADDITIONAL PATCHY LIGHT RAIN MOVING
OVER THE REGION...WILL CONTINUE THE THREAT FOR FLASH FLOODING. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LEWISBURG...
HINTON...
ALDERSON...
SANDSTONE...
AND HIX. 

THIS INCLUDES THE WEST VIRGINIA STATE FAIRGROUNDS.
 
THIS INCLUDES THE FOLLOWING STREAMS AND DRAINAGES...
EAGLE BRANCH...
BUGGY BRANCH...
HOWARD CREEK...
BEECH RUN...
AND PATTERSON CREEK.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

WHEN IT IS SAFE TO DO SO...PLEASE SEND YOUR REPORTS OF FLOODING...
INCLUDING MUDSLIDES OR ROAD CLOSURES...TO THE NATIONAL WEATHER
SERVICE BY CALLING TOLL FREE AT 1...8 6 6...2 1 5...4 3 2 4. REPORTS
AND PICTURES CAN ALSO BE SHARED ON THE NATIONAL WEATHER SERVICE
BLACKSBURG FACEBOOK PAGE AND ON TWITTER.

&&

LAT...LON 3800 8050 3783 8029 3772 8062 3773 8066
      3770 8067 3762 8091 3771 8097 3772 8095
      3770 8091 3767 8090 3769 8088 3773 8090
      3775 8092 3777 8089 3782 8094 3787 8081
      3787 8075 3790 8077

$$

DS

280 
WGUS71 KRNK 020400
FFSRNK

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BLACKSBURG VA
1200 AM EDT MON MAY 2 2016

WVC025-089-020410-
/O.CAN.KRNK.FF.W.0003.000000T0000Z-160502T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
SUMMERS WV-GREENBRIER WV-
1200 AM EDT MON MAY 2 2016

...THE FLASH FLOOD WARNING FOR NORTHEASTERN SUMMERS AND SOUTHWESTERN
GREENBRIER COUNTIES IS CANCELLED...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO POSE
A THREAT.

LAT...LON 3800 8050 3783 8029 3772 8062 3773 8066
      3770 8067 3762 8091 3771 8097 3772 8095
      3770 8091 3767 8090 3769 8088 3773 8090
      3775 8092 3777 8089 3782 8094 3787 8081
      3787 8075 3790 8077

$$

DS

The office that day

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

Issued	Product	Office	Counties	Lasted
May 1, 8:32 PM EDT	Special Weather Statement	RNK	Monroe	28 min
May 1, 8:42 PM EDT	Severe Thunderstorm Warning	RNK	Greenbrier, Monroe	33 min
May 1, 8:56 PM EDT	Special Weather Statement	RNK	Mercer	34 min
May 2, 5:20 AM EDT	Flash Flood Watch	RNK	Greenbrier	15 hr
May 2, 2:56 PM EDT	Severe Thunderstorm Warning	RNK	Mercer	64 min
May 2, 3:46 PM EDT	Severe Thunderstorm Warning	RNK	Monroe	29 min
May 2, 4:13 PM EDT	Severe Thunderstorm Warning	RNK	Monroe	47 min
May 2, 4:18 PM EDT	Special Weather Statement	RNK	Mercer	27 min
May 2, 4:34 PM EDT	Severe Thunderstorm Warning	RNK	Mercer, Monroe, Summers	41 min
May 2, 4:40 PM EDT	Severe Thunderstorm Warning	RNK	Mercer, Monroe, Summers	65 min
May 2, 4:47 PM EDT	Special Weather Statement	RNK	Nicholas	28 min
May 2, 5:23 PM EDT	Special Weather Statement	RNK	Monroe	37 min
May 2, 5:25 PM EDT	Special Weather Statement	RNK	Greenbrier	35 min
May 2, 5:47 PM EDT	Special Weather Statement	RNK	Greenbrier, Monroe	28 min

Nearby

Flash Flood Warnings in West Virginia, 2016 Every flash flood warning in 2016

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.