Alert archive / West Virginia / Flash Flood Warnings in 2021

Flash Flood Warning 74, NWS Charleston, WV

July 7, 2021Randolph County, West Virginia

NWS Charleston, WV issued this flash flood warning at Jul 7, 2021, 3:43 PM EDT for Randolph County, West Virginia. It was in force for 2 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 7, 2021, 3:43 PM EDT (19:43 UTC)
Expired
Jul 7, 2021, 6:02 PM EDT
In force
2 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

County Randolph County, WV

The radar

The Sterling radar (KLWX), 174 km from the middle of the area, began a volume at 19:44 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
Jul 7, 5:42 PM EDTFLOODHarman, WVHIGH WATER ON MAIN STREET AND OTHER ROADS FOR A SHORT TIME DUE TO OVERFLOWING CULVERTS BUT NO ROADS WERE IMPASSABLE AND CONDITIONS HAVE IMPROVED.

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, 7.7 hours before the alert went out and 177 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 2021-07-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 505 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 2021-07-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
505 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
1230 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

158 
WGUS51 KRLX 071943
FFWRLX
WVC083-072245-
/O.NEW.KRLX.FF.W.0074.210707T1943Z-210707T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
343 PM EDT Wed Jul 7 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Northeastern Randolph County in northeastern West Virginia...

* Until 645 PM EDT.

* At 343 PM EDT, Doppler radar indicated thunderstorms producing 
  heavy rain across the warned area. Between 1 and 2 inches of rain 
  have fallen. Additional rainfall amounts of 1 to 1.5 inches are 
  possible in the warned area. Flash flooding is ongoing or expected 
  to begin shortly.

  HAZARD...Flash flooding caused by thunderstorms.

  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...
  Harman and Dryfork.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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 3876 7953 3877 7962 3887 7972 3899 7959
      3897 7950 3898 7950 3898 7943 3897 7936
      3896 7935 3892 7937 3893 7945 3892 7946
      3890 7945 3889 7948 3889 7952 3887 7951
      3884 7954 3883 7952 3882 7953 3879 7951

FLASH FLOOD...RADAR INDICATED

$$

ABE
2 follow-up statements
516 
WGUS71 KRLX 072053
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
453 PM EDT Wed Jul 7 2021

WVC083-072245-
/O.CON.KRLX.FF.W.0074.000000T0000Z-210707T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph WV-
453 PM EDT Wed Jul 7 2021

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 645 PM EDT THIS 
EVENING FOR NORTHEASTERN RANDOLPH COUNTY...

At 453 PM EDT, Doppler radar indicated thunderstorms producing heavy 
rain across the warned area. Between 2 and 3.5 inches of rain have 
fallen. Additional rainfall amounts of 1 to 1.5 inches are possible 
in the warned area. Flash flooding is ongoing or expected to begin 
shortly.

HAZARD...Flash flooding caused by thunderstorms.

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...
  Harman and Dryfork.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3876 7953 3877 7962 3887 7972 3899 7959
      3897 7950 3898 7950 3898 7943 3897 7936
      3896 7935 3892 7937 3893 7945 3892 7946
      3890 7945 3889 7948 3889 7952 3887 7951
      3884 7954 3883 7952 3882 7953 3879 7951

FLASH FLOOD...RADAR INDICATED

$$

ABE
987 
WGUS71 KRLX 072202
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
602 PM EDT Wed Jul 7 2021

WVC083-072212-
/O.CAN.KRLX.FF.W.0074.000000T0000Z-210707T2245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Randolph WV-
602 PM EDT Wed Jul 7 2021

...FLASH FLOOD WARNING IS CANCELLED FOR NORTHEASTERN RANDOLPH 
COUNTY...

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

LAT...LON 3876 7953 3877 7962 3887 7972 3899 7959
      3897 7950 3898 7950 3898 7943 3897 7936
      3896 7935 3892 7937 3893 7945 3892 7946
      3890 7945 3889 7948 3889 7952 3887 7951
      3884 7954 3883 7952 3882 7953 3879 7951

$$

ABE

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 7, 2:02 PM EDTSpecial Weather StatementRLXPocahontas28 min
Jul 7, 3:32 PM EDTSpecial Weather StatementRLXTucker43 min
Jul 7, 4:07 PM EDTSpecial Weather StatementRLXFayette23 min
Jul 7, 4:24 PM EDTFlash Flood WarningRLXFayette73 min
Jul 7, 5:03 PM EDTSevere Thunderstorm WarningRLXBraxton, Gilmer27 min
Jul 7, 5:24 PM EDTSpecial Weather StatementRLXLewis51 min
Jul 7, 5:35 PM EDTSevere Thunderstorm WarningRLXDoddridge, Harrison, Lewis40 min
Jul 7, 6:17 PM EDTSpecial Weather StatementRLXHarrison, Taylor43 min
Jul 7, 6:23 PM EDTSpecial Weather StatementRLXCabell52 min
Jul 7, 6:57 PM EDTSpecial Weather StatementRLXPutnam33 min

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.