Alert archive / West Virginia / Flash Flood Warnings in 2011

Flash Flood Warning 40, NWS Charleston, WV

July 24, 2011Barbour County, West Virginia

NWS Charleston, WV issued this flash flood warning at Jul 24, 2011, 7:38 AM EDT for Barbour County, West Virginia. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Jul 24, 2011, 7:38 AM EDT (11:38 UTC)
Expired: Jul 24, 2011, 10:30 AM EDT
In force: 3 hr
Issued by: NWS Charleston, WV
Area: Storm-based polygon
Flood severity: None

County Barbour County, WV

The radar

The Pittsburgh radar (KPBZ), 156 km from the middle of the area, began a volume at 11:40 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.

What was reported inside it

Time	Report	Where	Remark
Jul 24, 8:00 AM EDT	FLASH FLOOD	E Belington, WV	ROUTE 92 PARTIALLY BLOCKED BY HIGH WATER IN BELINGTON AREA.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Pittsburgh, PA (KPIT), launched 00:00Z, 11.6 hours before the alert went out and 142 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: 2329 J/kg
Mixed-layer CIN: -11 J/kg
Mixed-layer LCL: 1051 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 58 m²/s²
0-3 km storm-relative helicity: 62 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 2.9

Open this sounding in Storm Lab

The text

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

007 
WGUS51 KRLX 241138
FFWRLX
WVC001-241430-
/O.NEW.KRLX.FF.W.0040.110724T1138Z-110724T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
738 AM EDT SUN JUL 24 2011

THE NATIONAL WEATHER SERVICE IN CHARLESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL BARBOUR COUNTY IN WEST VIRGINIA...
  THIS INCLUDES THE CITY OF PHILIPPI...

* UNTIL 1030 AM EDT

* AT 737 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MOATSVILLE
  AND NESTORVILLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

ADDITIONAL RAINFALL AMOUNTS OF 0.5 TO 0.75 INCHES ARE POSSIBLE IN 
THE WARNED AREA.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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. MOVE TO HIGHER GROUND.

&&

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE...877-633-6772...WHEN YOU CAN DO SO SAFELY.

LAT...LON 3917 7982 3904 7989 3900 7997 3912 8022
      3924 8010 3923 7994

$$

14

2 follow-up statements

022 
WGUS71 KRLX 241308
FFSRLX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
908 AM EDT SUN JUL 24 2011

WVC001-241430-
/O.CON.KRLX.FF.W.0040.000000T0000Z-110724T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BARBOUR WV-
908 AM EDT SUN JUL 24 2011

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 AM EDT FOR
CENTRAL BARBOUR COUNTY...

AT 900 AM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR HAS ESTIMATED 
THAT 4 TO 6 INCHES OF RAIN HAS FALLEN OVER BARBOUR COUNTY IN THE 
LAST 3 HOURS.  WHILE THE HEAVY RAIN HAS MOVED OUT OF THE WARNED 
AREA...SOME FURTHER RUNOFF MAY OCCUR AND CAUSE WATER PROBLEMS.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO PHILIPPI

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

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. MOVE TO HIGHER GROUND.

TURN AROUND DON'T DROWN. DO NOT DRIVE YOUR CAR ON FLOODED ROADWAYS.

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE 877-633-6772 WHEN YOU CAN DO SO SAFELY.

&&

LAT...LON 3917 7982 3904 7989 3900 7997 3912 8022
      3924 8010 3923 7994

$$

24

015 
WGUS71 KRLX 241427
FFSRLX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
1027 AM EDT SUN JUL 24 2011

WVC001-241436-
/O.EXP.KRLX.FF.W.0040.000000T0000Z-110724T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BARBOUR WV-
1027 AM EDT SUN JUL 24 2011

...THE FLASH FLOOD WARNING WILL EXPIRE AT 1030 AM EDT FOR CENTRAL
BARBOUR COUNTY...

HEAVY RAIN IS NO LONGER ANTICIPATED...THEREFORE THE FLASH FLOOD
WARNING THAT WAS IN EFFECT HAS BEEN ALLOWED TO EXPIRE. STREAMS AND
CREEKS HAVE BEGUN TO RECEDE AND NO LONGER POSE A FLASH FLOOD THREAT.

TURN AROUND DON'T DROWN. DO NOT DRIVE YOUR CAR ON FLOODED ROADWAYS.

PLEASE REPORT HIGH WATER TO THE NATIONAL WEATHER SERVICE BY CALLING
TOLL FREE 877-633-6772 WHEN YOU CAN DO SO SAFELY.

LAT...LON 3917 7982 3904 7989 3900 7997 3912 8022
      3924 8010 3923 7994

$$

24

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 24, 6:58 AM EDT	Special Weather Statement	RLX	Barbour	62 min
Jul 24, 8:06 AM EDT	Flash Flood Warning	RLX	Randolph	3 hr
Jul 24, 4:00 PM EDT	Special Weather Statement	RLX	Putnam	30 min
Jul 24, 4:23 PM EDT	Special Weather Statement	RLX	Kanawha	37 min
Jul 24, 7:05 PM EDT	Special Weather Statement	RLX	Lincoln	25 min
Jul 24, 7:07 PM EDT	Special Weather Statement	RLX	Lincoln	23 min
Jul 24, 7:50 PM EDT	Special Weather Statement	RLX	Calhoun	25 min

Nearby

Flash Flood Warnings in West Virginia, 2011 Every flash flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.