Alert archive / West Virginia / Flash Flood Warnings in 2026

Flash Flood Warning 221, NWS Charleston, WV

September 20, 20265 counties in West Virginia

NWS Charleston, WV issued this flash flood warning at Sep 20, 2026, 5:43 AM EDT for 5 counties in West Virginia. It was in force for 4 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 20, 2026, 5:43 AM EDT (09:43 UTC)
Expired
Sep 20, 2026, 9:23 AM EDT
In force
4 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

Counties Clay County, WV, Nicholas County, WV, Pocahontas County, WV, Randolph County, WV, Webster County, WV

The radar

The Charleston,WV radar (KRLX), 113 km from the middle of the area, began a volume at 09:47 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 9.7 hours before the alert went out and 149 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, Roanoke, VA at 00:00Z on 2026-09-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Roanoke, VA at 00:00Z on 2026-09-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
185 J/kg
Mixed-layer CIN
-20 J/kg
Mixed-layer LCL
1023 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.4

Open this sounding in Storm Lab

The text

As transmitted.

406 
WGUS51 KRLX 200943
FFWRLX
WVC015-067-075-083-101-201345-
/O.NEW.KRLX.FF.W.0221.260920T0943Z-260920T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
543 AM EDT Sun Sep 20 2026

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Southwestern Clay County in north central West Virginia...
  Pocahontas County in northeastern West Virginia...
  Southwestern Randolph County in northeastern West Virginia...
  Webster County in northeastern West Virginia...
  Nicholas County in southeastern West Virginia...

* Until 945 AM EDT.

* At 543 AM EDT, Doppler radar indicated thunderstorms producing
  heavy rain across the warned area. Between 0.5 and 1.5 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 indicated.

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

This includes Route 19 between mile markers 35 and 49.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Report flooding to the National Weather Service by calling toll free,
800 401 9535, when you can do so safely.

&&

LAT...LON 3827 8122 3848 8127 3854 8116 3833 8090
      3868 8029 3862 7962 3849 7969 3843 7969
      3836 7973 3831 7981 3827 7979 3818 7992
      3808 7995 3813 8036 3823 8036 3827 8044
      3815 8060 3819 8092 3824 8103 3822 8105

FLASH FLOOD...RADAR INDICATED

$$

JP
2 follow-up statements
324 
WGUS71 KRLX 201154
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
754 AM EDT Sun Sep 20 2026

WVC015-067-075-083-101-201345-
/O.CON.KRLX.FF.W.0221.000000T0000Z-260920T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay WV-Nicholas WV-Pocahontas WV-Randolph WV-Webster WV-
754 AM EDT Sun Sep 20 2026

...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 945 AM EDT THIS
MORNING FOR SOUTHWESTERN CLAY, POCAHONTAS, SOUTHWESTERN RANDOLPH,
WEBSTER AND NICHOLAS COUNTIES...

At 754 AM EDT, Doppler radar and automated rain gauges indicated
thunderstorms producing heavy rain across the warned area. Between
1.5 and 2.5 inches of rain have fallen. Additional rainfall amounts
of 0.5 to 1 inch are possible in the warned area. Flash flooding is
ongoing or expected to begin shortly.

HAZARD...Flash flooding caused by thunderstorms.

SOURCE...Radar and automated gauges.

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...
  Summersville, Richwood, Marlinton, Clay, Webster Springs, Cass
  Scenic Railroad, Green Bank, Addison (Webster Springs),
  Camden-On-gauley, Camden On Gauley, Craigsville, Snowshoe, Glen,
  Mingo, Cowen, Durbin, Hillsboro, Bergoo, Upper Glade, and Waneta.

This includes Route 19 between mile markers 34 and 49.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Be aware of your surroundings and do not drive on flooded roads.

Report flooding to the National Weather Service by calling toll free,
800 401 9535, when you can do so safely.

&&

LAT...LON 3827 8122 3848 8127 3854 8116 3833 8090
      3868 8029 3862 7962 3849 7969 3843 7969
      3836 7973 3831 7981 3827 7979 3818 7992
      3808 7995 3813 8036 3823 8036 3827 8044
      3815 8060 3819 8092 3824 8103 3822 8105

FLASH FLOOD...RADAR AND GAUGE INDICATED

$$

SINCAVAGE
919 
WGUS71 KRLX 201323
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
923 AM EDT Sun Sep 20 2026

WVC015-067-075-083-101-201333-
/O.CAN.KRLX.FF.W.0221.000000T0000Z-260920T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Clay WV-Nicholas WV-Pocahontas WV-Randolph WV-Webster WV-
923 AM EDT Sun Sep 20 2026

...FLASH FLOOD WARNING FOR SOUTHWESTERN CLAY, POCAHONTAS,
SOUTHWESTERN RANDOLPH, WEBSTER AND NICHOLAS COUNTIES HAS BEEN
REPLACED WITH A FLOOD WARNING...

While the threat for heavy rainfall and flash flooding has ended,
areas of high water exists across portions of the warned area from
prior heavy rainfall this morning. Creeks and streams will continue
to rise due to the excess runoff of water, with flooding imminent or
occurring.

&&

LAT...LON 3827 8122 3848 8127 3854 8116 3833 8090
      3868 8029 3862 7962 3849 7969 3843 7969
      3836 7973 3831 7981 3827 7979 3818 7992
      3808 7995 3813 8036 3823 8036 3827 8044
      3815 8060 3819 8092 3824 8103 3822 8105

$$

SINCAVAGE

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, WV wrote its last area forecast discussion before this flash flood warning went out at Sep 20, 2:28 AM EDT, 3 hours 15 minutes earlier. Its key messages:

  • 1) Unsettled through mid week amid a cooling trend with improving conditions for the end of the week and the weekend.
Area forecast discussion, Sep 20, 2:28 AM EDT, 3 hours 15 minutes before
Area Forecast Discussion
National Weather Service Charleston WV
228 AM EDT Sun Sep 20 2026

.WHAT HAS CHANGED...
No significant changes were made from the previous forecast
package.

&&

.KEY MESSAGES...
1) Unsettled through mid week amid a cooling trend with
improving conditions for the end of the week and the weekend.

&&

.DISCUSSION...
KEY MESSAGE 1...

Active weather will persist through today and past mid week. A
frontal boundary will drape across the region and will meander
through Monday while pushing slowly south and finally exiting
by mid day Monday. This feature will provide chances for shower
and storm activity and where a few storms could be strong to
severe which should be isolated in nature. The main threat will
be damaging wind. Much of the activity will be confined to the
northern parts of our Country Warning Area where higher
probabilities of precipitation exist.

Another aspect is the area will be under an excessive rainfall
outlook and the threat of heavy downpours amid thunderstorm
activity will likely cause some instances of flash flooding to
flood prone or low lying areas if hit repeatedly. This will be
supported by anomalously high PWATs for this time of year. Once
the feature exits a low pressure system digging and
strengthening across the Great Lakes will come into the region
and promote synoptic scale ascent to broaden the unsettled
weather across our entire area.

For much of Monday and Tuesday and even Wednesday will be under
the influence of broad low pressure and chances for shower and
thunderstorms. This is especially for Tuesday and Wednesday
with high probabilities of precipitation especially during
the daytime. This activity along with weak cold air advection
will promote temperatures below seasonable starting Tuesday and
continuing into the weekend promoting comfortable weather amid
drier conditions as strong high pressure builds in for the the
end of the work week and for the weekend.

&&

.AVIATION /06Z SUNDAY THROUGH THURSDAY/...
A very active morning with shower and thunderstorm activity
possible at all sites. With calming flow at the surface some
sites may endure fog development such as CRW through the
morning. Enough cloud coverage, surface flow and convection
should depress much development elsewhere, however there may be
times at which a site decouples and fog may form temporarily or
stay until 13/14Z. Or the other scenario is that shower activity
will lower VIS and it may take a short while before lifting
back to VFR. Thereafter, any low stratus will lift a few hours
after the fog dissipates and VFR should prevail the rest of the
TAF period.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 06Z MONDAY...

FORECAST CONFIDENCE: Medium.

ALTERNATE SCENARIOS: Restrictions and timing associated with
fog will likely vary.Timing of showers/storms may vary from the
forecast.

EXPERIMENTAL TABLE OF FLIGHT CATEGORY OBJECTIVELY SHOWS CONSISTENCY
OF WFO FORECAST TO AVAILABLE MODEL INFORMATION:
H = HIGH:   TAF CONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.
M = MEDIUM: TAF HAS VARYING LEVEL OF CONSISTENCY WITH MODELS.
L = LOW:    TAF INCONSISTENT WITH ALL MODELS OR ALL BUT ONE MODEL.

DATE                              SUN 09/20/26
UTC 1HRLY       06   07   08   09   10   11   12   13   14   15   16   17
EDT 1HRLY       02   03   04   05   06   07   08   09   10   11   12   13
CRW CONSISTENCY  M    M    M    M    M    M    L    M    H    M    M    H
HTS CONSISTENCY  M    M    M    M    M    L    H    H    H    H    H    H
BKW CONSISTENCY  M    L    L    L    L    L    M    H    H    H    H    H
EKN CONSISTENCY  L    L    L    L    L    M    L    L    M    H    H    M
PKB CONSISTENCY  L    L    L    M    M    L    M    M    H    L    H    H
CKB CONSISTENCY  M    H    H    H    M    H    H    M    H    L    H    H

AFTER 06Z MONDAY...
IFR conditions possible in showers and storms each day through
mid week.

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...None.
OH...None.
KY...None.
VA...None.

&&

DISCUSSION...JZ
AVIATION...JZ

In the hours before

Special weather statement, Sep 20, 4:19 AM EDT, 1 hour 24 minutes before
Special Weather Statement
National Weather Service Charleston WV
419 AM EDT Sun Sep 20 2026

WVZ006>008-013>016-018-028-029-200900-
Calhoun WV-Jackson WV-Roane WV-Mason WV-Kanawha WV-Lincoln WV-
Gilmer WV-Braxton WV-Cabell WV-Putnam WV-
419 AM EDT Sun Sep 20 2026

...STRONG THUNDERSTORMS WILL IMPACT SOUTHERN CALHOUN...SOUTHEASTERN
MASON...EAST CENTRAL CABELL...NORTHERN KANAWHA...PUTNAM...
SOUTHWESTERN GILMER...WEST CENTRAL BRAXTON...NORTHEASTERN LINCOLN...
ROANE AND SOUTHEASTERN JACKSON COUNTIES THROUGH 500 AM EDT...

At 419 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Spencer to 8 miles west of Kenna to near
Ona. Movement was east at 30 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Charleston, Nitro, Spencer, Winfield, Jefferson, South Charleston,
St. Albans, Dunbar, Hurricane, Barboursville, Sissonville, Milton,
Eleanor, Buffalo, Clendenin, Poca, Pinch, Cross Lanes, Arnoldsburg,
and Kenna.

This includes the following highways...
 Interstate 79 between mile markers 1 and 31.
 Interstate 77 in West Virginia between mile markers 97 and 133.
 Interstate 64 in West Virginia between mile markers 18 and 57.
 Route 119 between mile markers 65 and 80.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with these storms and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to travel across
flooded roads. Find alternate routes. It takes only a few inches of
swiftly flowing water to carry vehicles away.

&&

LAT...LON 3867 8193 3886 8149 3876 8074 3864 8100
      3867 8103 3861 8109 3853 8126 3821 8175
      3823 8177 3822 8179 3840 8233
TIME...MOT...LOC 0819Z 284DEG 27KT 3881 8145 3865 8181 3841 8218

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

JP
Local storm report, Sep 20, 4:26 AM EDT, 1 hour 17 minutes before
Preliminary Local Storm Report
National Weather Service Charleston WV
426 AM EDT Sun Sep 20 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1148 PM     Tstm Wnd Dmg     6 NW Mcarthur           39.32N 82.54W
09/19/2026                   Vinton             OH   911 Call Center

            Tree down in the 27000 block of Locust Grove
            Rd. Time estimated from radar.

&&

JP
Local storm report, Sep 20, 4:43 AM EDT, 1 hour before
Preliminary Local Storm Report
National Weather Service Charleston WV
443 AM EDT Sun Sep 20 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0443 AM     Flash Flood      6 SSW Henderson         38.75N 82.19W
09/20/2026                   Mason              WV   Dept of Highways

            High water reported in the 15200 block of
            Huntington Rd.

&&

JP
Local storm report, Sep 20, 5:06 AM EDT, 37 minutes before
Preliminary Local Storm Report
National Weather Service Charleston WV
506 AM EDT Sun Sep 20 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0505 AM     Flash Flood      1 NE Point Pleasant     38.86N 82.12W
09/20/2026                   Mason              WV   Dept of Highways

            High water reported on Jericho Rd.

&&

JP
Local storm report, Sep 20, 5:24 AM EDT, 19 minutes before
Preliminary Local Storm Report
National Weather Service Charleston WV
524 AM EDT Sun Sep 20 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0518 AM     Flood            5 NW Zaleski            39.32N 82.46W
09/20/2026                   Vinton             OH   911 Call Center

            High water reported at Siverly Creek Rd and
            Creola Rd with a vehicle in flood water.

&&

JP
Local storm report, Sep 20, 5:33 AM EDT, 10 minutes before
Preliminary Local Storm Report
National Weather Service Charleston WV
533 AM EDT Sun Sep 20 2026

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0530 AM     Debris Flow      3 SSW Elizabeth         39.02N 81.42W
09/20/2026                   Wirt               WV   Dept of Highways

            Mudslide in the 900 block of Garfield Rd.

&&

JP

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 20, 12:18 AM EDTSevere Thunderstorm WarningRLXMason42 min
Sep 20, 1:06 AM EDTSpecial Weather StatementRLXWood39 min
Sep 20, 1:38 AM EDTSpecial Weather StatementRLXJackson, Ritchie, Wirt, Wood67 min
Sep 20, 1:42 AM EDTFlash Flood WarningRLXJackson, Mason, Wood4 hr
Sep 20, 2:20 AM EDTSpecial Weather StatementRLXCalhoun, Doddridge, Gilmer, Jackson, Ritchie, Roane55 min
Sep 20, 3:10 AM EDTSpecial Weather StatementRLXBraxton, Calhoun, Gilmer, Harrison, Lewis, Roane and 2 more65 min
Sep 20, 3:23 AM EDTSpecial Weather StatementRLXJackson, Mason, Ritchie, Wirt, Wood67 min
Sep 20, 3:44 AM EDTFlash Flood WarningRLXCalhoun, Doddridge, Gilmer, Jackson, Ritchie, Roane and 2 more5 hr
Sep 20, 4:19 AM EDTSpecial Weather StatementRLXCabell, Putnam, Roane41 min
Sep 20, 4:38 AM EDTFlash Flood WarningRLXJackson, Mason4 hr
Sep 20, 4:40 AM EDTFlash Flood WarningRLXBraxton, Calhoun, Clay, Gilmer, Lewis, Nicholas and 2 more5 hr
Sep 20, 5:30 AM EDTFlash Flood WarningRLXCabell, Jackson, Kanawha, Mason, Putnam, Roane and 1 more4 hr
Sep 20, 6:06 AM EDTAreal Flood WarningRLXJackson, Mason, Wood17 hr
Sep 20, 7:20 AM EDTFlash Flood WarningRLXBoone, Cabell, Clay, Kanawha, Lincoln, Putnam and 1 more3 hr
Sep 20, 8:23 AM EDTAreal Flood WarningRLXJackson, Mason, Putnam11 hr
Sep 20, 8:33 AM EDTAreal Flood WarningRLXCalhoun, Doddridge, Gilmer, Jackson, Ritchie, Roane and 2 more5 hr
Sep 20, 9:05 AM EDTAreal Flood WarningRLXCabell, Jackson, Kanawha, Mason, Putnam, Roane and 1 more5 hr
Sep 20, 9:19 AM EDTAreal Flood WarningRLXBraxton, Calhoun, Clay, Gilmer, Lewis, Nicholas and 3 more5 hr
Sep 20, 9:23 AM EDTAreal Flood WarningRLXClay, Fayette, Nicholas, Pocahontas, Randolph, Webster5 hr
Sep 20, 9:54 AM EDTAreal Flood WarningRLXBoone, Cabell, Clay, Kanawha, Lincoln, Nicholas and 2 more3 hr
Sep 20, 2:11 PM EDTFlood WatchRLXBarbour, Boone, Braxton, Cabell, Calhoun, Clay and 28 more3 days

Nearby

Flash Flood Warnings in West Virginia, 2026Every flash flood warning in 2026

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.