Alert archive / West Virginia / Flash Flood Warnings in 2017

Flash Flood Warning 19, NWS Charleston, WV

May 27, 2017Jackson County, Mason County, Putnam County, West Virginia

NWS Charleston, WV issued this flash flood warning at May 27, 2017, 7:28 PM EDT for Jackson County, Mason County, Putnam 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
May 27, 2017, 7:28 PM EDT (23:28 UTC)
Expired
May 27, 2017, 10:30 PM EDT
In force
3 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Jackson County, WV, Mason County, WV, Putnam County, WV

The radar

The Charleston,WV radar (KRLX), 52 km from the middle of the area, began a volume at 23:32 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

TimeReportWhereRemark
May 27, 8:21 PM EDTFLASH FLOOD2 Sw Evans, WVWATER FLOWING ACROSS EVANSVIEW ROAD NEAR DONOHUE RD WEST OF EVANS

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

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 12:00Z, 11.5 hours before the alert went out and 185 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, Cncnati-Daytn, OH at 12:00Z on 2017-05-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 794 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, Cncnati-Daytn, OH at 12:00Z on 2017-05-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 64 square meters per square second.1939587897Sfc1 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
794 J/kg
Mixed-layer CIN
-18 J/kg
Mixed-layer LCL
711 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
64 m²/s²
0-3 km storm-relative helicity
94 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.3

Open this sounding in Storm Lab

The text

As transmitted.

206 
WGUS51 KRLX 272328
FFWRLX
WVC035-053-079-280230-
/O.NEW.KRLX.FF.W.0019.170527T2328Z-170528T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
728 PM EDT SAT MAY 27 2017

The National Weather Service in Charleston West Virginia has issued a

* Flash Flood Warning for...
  East central Mason County in western West Virginia...
  Northeastern Putnam County in western West Virginia...
  Southwestern Jackson County in northwestern West Virginia...

* Until 1030 PM EDT

* At 726 PM EDT, Doppler radar indicated strong thunderstorms 
  producing very heavy rain across the warned area. These are 
  expected to continue through at least 830 PM. Flash flooding is 
  expected to begin shortly.

* Some locations that will experience flooding include...
  Kenna and Given. 

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 3885 8183 3865 8162 3864 8183 3885 8206

$$

05
2 follow-up statements
797 
WGUS71 KRLX 280049
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
849 PM EDT SAT MAY 27 2017

WVC035-053-079-280230-
/O.CON.KRLX.FF.W.0019.000000T0000Z-170528T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mason WV-Putnam WV-Jackson WV-
849 PM EDT SAT MAY 27 2017

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1030 PM EDT FOR
EAST CENTRAL MASON...NORTHEASTERN PUTNAM AND SOUTHWESTERN JACKSON
COUNTIES...

At 845 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area are diminishing, but light to moderate 
showers will continue through 930 PM. Thus, the warning will 
continue.

Some locations that will experience flooding include...
Kenna and Given. 

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 3885 8183 3865 8162 3864 8183 3885 8206

$$

05
898 
WGUS71 KRLX 280226
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
1026 PM EDT SAT MAY 27 2017

WVC035-053-079-280236-
/O.EXP.KRLX.FF.W.0019.000000T0000Z-170528T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Mason WV-Putnam WV-Jackson WV-
1026 PM EDT SAT MAY 27 2017

...THE FLASH FLOOD WARNING FOR EAST CENTRAL MASON...NORTHEASTERN
PUTNAM AND SOUTHWESTERN JACKSON COUNTIES WILL EXPIRE AT 1030 PM
EDT...

The heavy rain has ended. Flooding is no longer expected to pose a
threat. Please continue to heed any remaining road closures.

LAT...LON 3885 8183 3865 8162 3864 8183 3885 8206

$$

16

The office that day

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

IssuedProductOfficeCountiesLasted
May 27, 1:23 AM EDTSpecial Weather StatementRLXPleasants22 min
May 27, 4:14 AM EDTFlash Flood WatchRLXBarbour, Boone, Braxton, Cabell, Calhoun, Clay and 25 more39 hr
May 27, 3:01 PM EDTSpecial Weather StatementRLXDoddridge44 min
May 27, 3:20 PM EDTSevere Thunderstorm WarningRLXDoddridge, Gilmer, Harrison, Lewis40 min
May 27, 4:21 PM EDTSpecial Weather StatementRLXLewis, Upshur24 min
May 27, 4:24 PM EDTSpecial Weather StatementRLXWood36 min
May 27, 4:46 PM EDTSevere Thunderstorm WarningRLXLewis, Upshur29 min
May 27, 5:16 PM EDTSevere Thunderstorm WarningRLXBraxton, Lewis, Upshur29 min
May 27, 6:11 PM EDTSpecial Weather StatementRLXWayne94 min
May 27, 6:13 PM EDTSpecial Weather StatementRLXRoane32 min
May 27, 6:51 PM EDTSpecial Weather StatementRLXJackson24 min
May 27, 7:02 PM EDTSevere Thunderstorm WarningRLXKanawha, Roane28 min
May 27, 7:15 PM EDTSpecial Weather StatementRLXClay30 min
May 27, 7:48 PM EDTSpecial Weather StatementRLXDoddridge, Pleasants87 min

Nearby

Flash Flood Warnings in West Virginia, 2017Every flash flood warning in 2017

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.