Alert archive / West Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 2, NWS Pittsburgh, PA

June 11, 2021Marion County, West Virginia

NWS Pittsburgh, PA issued this flash flood warning at Jun 11, 2021, 3:51 PM EDT for Marion County, West Virginia. It was in force for 114 min. 2 reports 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
Jun 11, 2021, 3:51 PM EDT (19:51 UTC)
Expired
Jun 11, 2021, 5:45 PM EDT
In force
114 min
Issued by
NWS Pittsburgh, PA
Area
Storm-based polygon
Flood severity
None

County Marion County, WV

The radar

The Pittsburgh radar (KPBZ), 118 km from the middle of the area, began a volume at 19:52 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
Jun 11, 4:22 PM EDTFLASH FLOOD1 Nne Barrackville, WVREPORT OF MULTIPLE ROADS FLOODED DUE TO HEAVY RAINS, INCLUDING PIKE STREET ALONG FINCHS RUN.
Jun 11, 4:34 PM EDTFLASH FLOODBeverly Hills, WVREPORT OF HIGH WATER ON US19 AT BELL RUN DUE TO HEAVY RAIN.

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 12:00Z, 7.9 hours before the alert went out and 104 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 2021-06-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 89 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 2021-06-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 53 square meters per square second.1939Sfc1 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
89 J/kg
Mixed-layer CIN
-19 J/kg
Mixed-layer LCL
609 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
53 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

413 
WGUS51 KPBZ 111951
FFWPBZ
WVC049-112145-
/O.NEW.KPBZ.FF.W.0002.210611T1951Z-210611T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Pittsburgh PA
351 PM EDT Fri Jun 11 2021

The National Weather Service in Pittsburgh has issued a

* Flash Flood Warning for...
  South Central Marion County in northern West Virginia...

* Until 545 PM EDT.

* At 351 PM EDT, Radar indicated heavy rain across the warned area. 
  Between 1.00 to 1.50 inches has fallen, with an additional 1.00 
  expected.  Flash flooding is ongoing or expected to begin shortly.

  HAZARD...Flash flooding caused by heavy rainfall and previously
           saturated soil.

  SOURCE...Radar.

  IMPACT...Flash flooding of small creeks and streams, urban
           areas, highways, streets and underpasses as well as
           other poor drainage and low-lying areas.

* Some locations that will experience flash flooding include...
  Fairmont, Pleasant Valley, Winfield, Barrackville, Monongah, 
  Farmington, Worthington, Bentons Ferry, White Hall, Idamay and 
  Carolina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3951 8025 3953 8022 3952 8014 3949 8008
      3946 8009 3944 8013 3942 8017 3942 8023
      3944 8027 3948 8028

FLASH FLOOD...RADAR INDICATED

$$
2 follow-up statements
517 
WGUS71 KPBZ 112016
FFSPBZ

Flash Flood Statement
National Weather Service Pittsburgh PA
416 PM EDT Fri Jun 11 2021

WVC049-112145-
/O.CON.KPBZ.FF.W.0002.000000T0000Z-210611T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion WV-
416 PM EDT Fri Jun 11 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 545 PM EDT THIS 
AFTERNOON FOR SOUTH CENTRAL MARION COUNTY...

At 416 PM EDT, Radar indicated heavy rain across the warned area. 
Between 1.00 to 2.00 inches has fallen, with an additional 0.50 inch 
expected.  Flash flooding is ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by heavy rainfall and previously
         saturated soil.

SOURCE...Radar.

IMPACT...Flash flooding of small creeks and streams, urban areas,
         highways, streets and underpasses as well as other poor
         drainage and low-lying areas.

Some locations that will experience flash flooding include...
  Fairmont, Pleasant Valley, Winfield, Barrackville, Monongah, 
  Farmington, Worthington, Bentons Ferry, White Hall, Idamay and 
  Carolina.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Turn around, don't drown when encountering flooded roads. Most flood 
deaths occur in vehicles.

&&

LAT...LON 3951 8025 3953 8022 3952 8014 3949 8008
      3946 8009 3944 8013 3942 8017 3942 8023
      3944 8027 3948 8028

FLASH FLOOD...RADAR INDICATED

$$
609 
WGUS71 KPBZ 112147
FFSPBZ

Flash Flood Statement
National Weather Service Pittsburgh PA
547 PM EDT Fri Jun 11 2021

WVC049-112157-
/O.EXP.KPBZ.FF.W.0002.000000T0000Z-210611T2145Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Marion WV-
547 PM EDT Fri Jun 11 2021

...FLASH FLOOD WARNING HAS EXPIRED FOR SOUTH CENTRAL MARION COUNTY...

The heavy rain has ended. Flash flooding is no longer expected to 
pose a threat. Please continue to heed remaining road closures as 
areas of high water will gradually recede through the evening.  A 
flood advisory remains in effect for swollen streams and flooded 
roads.

A Flash Flood Watch also remains in effect until midnight for A 
portion of northern West Virginia.

LAT...LON 3951 8025 3953 8022 3952 8014 3949 8008
      3946 8009 3944 8013 3942 8017 3942 8023
      3944 8027 3948 8028

$$

The office that day

Everything else NWS Pittsburgh, PA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 8:34 PM EDTAreal Flood AdvisoryPBZMarion116 min
Jun 11, 3:23 AM EDTFlash Flood WatchPBZMarion, Monongalia, Preston, Tucker, Wetzel15 hr
Jun 11, 5:26 AM EDTAreal Flood AdvisoryPBZMarshall, Wetzel3 hr
Jun 11, 6:37 AM EDTAreal Flood AdvisoryPBZMarshall, Monongalia, Wetzel3 hr
Jun 11, 3:22 PM EDTAreal Flood AdvisoryPBZMarion3 hr

Nearby

Flash Flood Warnings in West Virginia, 2021Every flash flood warning in 2021

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.