Alert archive / West Virginia / Flash Flood Warnings in 2016

Flash Flood Warning 56, NWS Charleston, WV

August 15, 2016Lewis County, West Virginia

NWS Charleston, WV issued this flash flood warning at Aug 15, 2016, 5:54 PM EDT for Lewis County, West Virginia. It was in force for 111 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 15, 2016, 5:54 PM EDT (21:54 UTC)
Expired
Aug 15, 2016, 7:45 PM EDT
In force
111 min
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

County Lewis County, WV

The radar

The Charleston,WV radar (KRLX), 142 km from the middle of the area, began a volume at 21:56 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

Pittsburgh, PA (KAGC), launched 12:00Z, 9.9 hours before the alert went out and 154 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, Pittsburgh, PA at 12:00Z on 2016-08-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 219 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, Pittsburgh, PA at 12:00Z on 2016-08-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 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
219 J/kg
Mixed-layer CIN
-46 J/kg
Mixed-layer LCL
700 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

507 
WGUS51 KRLX 152154
FFWRLX
WVC041-152345-
/O.NEW.KRLX.FF.W.0056.160815T2154Z-160815T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE CHARLESTON WV
554 PM EDT MON AUG 15 2016

THE NATIONAL WEATHER SERVICE IN CHARLESTON WEST VIRGINIA HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHEASTERN LEWIS COUNTY IN NORTHERN WEST VIRGINIA...

* UNTIL 745 PM EDT

* AT 551 PM EDT...DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS
  PRODUCING VERY HEAVY RAIN ACROSS THE WARNED AREA. DOPPLER RADAR
  INDICATES UP TO TWO INCHES OF RAIN HAS ALREADY FALLEN...WITH
  ADDITIONAL SIGNIFICANT RAINFALL EXPECTED. FLASH FLOODING IS
  EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  HORNER.

PLEASE REPORT SEVERE WEATHER TO THE NATIONAL WEATHER SERVICE BY
CALLING TOLL FREE...800 401 9535...WHEN YOU CAN DO SO SAFELY.

YOU MAY ALSO REPORT SEVERE WEATHER BY POSTING YOUR REPORT TO THE
CHARLESTON WEST VIRGINIA NATIONAL WEATHER SERVICE FACEBOOK PAGE...OR
BY USING THE TWITTER HASHTAG...NWSRLX.

LAT...LON 3909 8031 3896 8036 3896 8049 3909 8042

$$

05
1 follow-up statement
626 
WGUS71 KRLX 152341
FFSRLX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE CHARLESTON WV
741 PM EDT MON AUG 15 2016

WVC041-152350-
/O.EXP.KRLX.FF.W.0056.000000T0000Z-160815T2345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LEWIS WV-
741 PM EDT MON AUG 15 2016

...THE FLASH FLOOD WARNING FOR NORTHEASTERN LEWIS COUNTY WILL EXPIRE
AT 745 PM EDT...

THE HEAVY RAIN HAS ENDED. NO FLOODING HAS BEEN REPORTED SO FAR.
THUS...THE FLASH FLOOD WARNING HAS BEEN ALLOWED TO EXPIRE. 

LAT...LON 3909 8031 3896 8036 3896 8049 3909 8042

$$

05

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 8:01 PM EDTSpecial Weather StatementRLXWebster59 min
Aug 14, 8:15 PM EDTSpecial Weather StatementRLXCabell45 min
Aug 15, 2:02 PM EDTSpecial Weather StatementRLXHarrison, Taylor58 min
Aug 15, 2:11 PM EDTSevere Thunderstorm WarningRLXHarrison, Taylor49 min
Aug 15, 2:52 PM EDTSevere Thunderstorm WarningRLXTaylor23 min
Aug 15, 5:40 PM EDTSpecial Weather StatementRLXLincoln, Logan, Wayne50 min
Aug 15, 6:35 PM EDTSpecial Weather StatementRLXClay55 min
Aug 15, 6:57 PM EDTFlash Flood WarningRLXBraxton, Gilmer108 min

Nearby

Flash Flood Warnings in West Virginia, 2016Every 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.