Alert archive / Ohio / Flash Flood Warnings in 2026

Flash Flood Warning 83, NWS Charleston, WV

July 21, 2026Washington County, Ohio

NWS Charleston, WV issued this flash flood warning at Jul 21, 2026, 12:48 PM EDT for Washington County, Ohio. It was in force for 4 hr. 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
Jul 21, 2026, 12:48 PM EDT (16:48 UTC)
Expired
Jul 21, 2026, 4:45 PM EDT
In force
4 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

County Washington County, OH

The radar

The Charleston,WV radar (KRLX), 118 km from the middle of the area, began a volume at 16:51 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 21, 1:00 PM EDTFLASH FLOODVincent, OHHigh water on First Street via social media photo.
Jul 21, 1:00 PM EDTFLASH FLOODVincent, OHHigh water on First Street via social media photo.

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

Did it verify

Verified. The Iowa Environmental Mesonet's Cow matched one storm report to this flash flood warning; the first came 12 minutes after it went out.

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

Pittsburgh, PA (KPIT), launched 12:00Z, 4.8 hours before the alert went out and 178 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 2026-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 538 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, Pittsburgh, PA at 12:00Z on 2026-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 146 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
538 J/kg
Mixed-layer CIN
-52 J/kg
Mixed-layer LCL
856 m above ground
0-6 km bulk shear
51 kt
0-1 km storm-relative helicity
146 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.6

Open this sounding in Storm Lab

The text

As transmitted.

316 
WGUS51 KRLX 211648
FFWRLX
OHC167-212045-
/O.NEW.KRLX.FF.W.0083.260721T1648Z-260721T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
1248 PM EDT Tue Jul 21 2026

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Southwestern Washington County in southeastern Ohio...

* Until 445 PM EDT.

* At 1248 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 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 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.

* Some locations that will experience flash flooding include...
  Fleming and Bartlett.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to cross flooded
roads. Find an alternate route.

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

&&

LAT...LON 3944 8184 3943 8175 3941 8163 3939 8155
      3935 8155 3934 8156 3933 8156 3931 8158
      3931 8161 3933 8175 3936 8185 3944 8185

FLASH FLOOD...RADAR INDICATED

$$

30
1 follow-up statement
772 
WGUS71 KRLX 212036
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
436 PM EDT Tue Jul 21 2026

OHC167-212046-
/O.EXP.KRLX.FF.W.0083.000000T0000Z-260721T2045Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Washington OH-
436 PM EDT Tue Jul 21 2026

...FLASH FLOOD WARNING WILL EXPIRE AT 445 PM EDT THIS AFTERNOON FOR
SOUTHWESTERN WASHINGTON COUNTY...

Please continue to heed remaining road closures.

A Flood Watch remains in effect until 200 AM EDT Wednesday for
portions of northeast Kentucky, southeast Ohio, southwest Virginia,
and West Virginia.

&&

LAT...LON 3944 8184 3943 8175 3941 8163 3939 8155
      3935 8155 3934 8156 3933 8156 3931 8158
      3931 8161 3933 8175 3936 8185 3944 8185

$$

30

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 Jul 21, 11:37 AM EDT, 1 hour 11 minutes earlier. Its key messages:

  • 1) Severe storms expected this afternoon and early evening.
Area forecast discussion, Jul 21, 11:37 AM EDT, 1 hour 11 minutes before
Area Forecast Discussion
National Weather Service Charleston WV
1137 AM EDT Tue Jul 21 2026

.WHAT HAS CHANGED...
No significant changes were necessary at this time.

&&

.KEY MESSAGES...
- 1) Severe storms expected this afternoon and early evening.

&&

.DISCUSSION...
KEY MESSAGE 1...

Mid level shortwave energy will dive south into the area into the
afternoon hours, followed by a cold front late this evening into the
overnight. As a cluster of elevated convection associated with this
shortwave approaches our area, it will encounter a very moist and
unstable environment, with convection becoming more surface based as
it enters our CWA. CAPE values progged to approach 2000 to 4000
J/kg, and increasing shear values of 40 to 60 kts in the 0-6km
layer, will result in potential for storms to become organized.
Damaging winds are the primary hazard, with convection potentially
organizing into lines/bowing segments, but with that being said,
there is a tornado threat as well, with low LCL heights less than
1500m and 0-3km SRH greater than 250.

Timing of the severe activity is difficult to pinpoint, but appears
most should occur in the afternoon to early/mid evening hours, with
an additional round of convection expected with the front later
tonight. It's possible some of this convection associated with the
front could be low end severe, but with loss of heating, and any
effects earlier convection has on the overall environment,
confidence isn't high.

Lastly, with any storms that occur, flash flooding is a possibility,
with the overall anomalously high PW are that continues to remain in
place. This should mainly be a threat in locations that receive
repetitive rounds of convection.

&&

.AVIATION /15Z TUESDAY THROUGH SATURDAY/...
MVFR stratocumulus will be most persistent in the mountains
this morning, but will show up in the middle Ohio Valley at
times, amid moist low level south to southwest flow..

Active weather is expected later today as a cold front, strong
for mid Summer, approaches from the northwest. Showers and
thunderstorms will develop across or arrive in the middle Ohio
later this morning, and be numerous this afternoon into tonight
as the expand into the central Appalachians.

PROB30 groups for strong, heavy thunderstorms have been
included from 19-22Z northwest (PKB) to 21-01Z southeast (BKW)
as the storms organize into a line or line segments. The area is
in an enhanced risk for severe thunderstorms, which would
mainly be for damaging wind gusts this afternoon and evening,
particularly with any organized severe thunderstorms or lines of
thunderstorms. However, large hail and even a tornado are also
possible, particularly with more discrete cells including
supercells.

The cold front will cross overnight tonight into Wednesday
morning, with areas of MVFR stratocumulus and mist, along with
showers and thunderstorms lingering in the mountains.

Light south to southwest flow early this morning will increase
from the southwest by mid morning, with gusts into the 20 to 25
kt range through this afternoon and into this evening outside
thunderstorms, before becoming light southwest tonight. Erratic
gusts, mainly from the southwest to northwest, are likely with
thunderstorms, and have been coded up in the aforementioned
PROB30 groups this afternoon into this evening. A wind shift to
light west to northwest should ensue at most if not all sites by
12Z Wednesday. Generally light to moderate southwest flow aloft
will shift to light to moderate northwest behind the cold front
aloft overnight tonight.

FORECAST CONFIDENCE AND ALTERNATE SCENARIOS THROUGH 18Z WEDNESDAY...

FORECAST CONFIDENCE: Medium

ALTERNATE SCENARIOS: Impacts due to thunderstorms could vary,
including timing and worse impacts than 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.

UTC 1HRLY       12   13   14   15   16   17   18   19   20   21   22   23
EDT 1HRLY       08   09   10   11   12   13   14   15   16   17   18   19
CRW CONSISTENCY  M    M    M    L    L    L    M    M    M    M    L    L
HTS CONSISTENCY  M    M    M    M    H    H    H    M    M    M    M    M
BKW CONSISTENCY  M    M    M    M    M    M    M    M    M    M    M    M
EKN CONSISTENCY  H    M    M    M    L    L    M    M    M    H    H    H
PKB CONSISTENCY  M    H    H    M    L    L    L    L    H    M    M    H
CKB CONSISTENCY  H    H    M    L    L    L    L    L    H    H    H    H

AFTER 18Z WEDNESDAY...
IFR or lower is forecast Wednesday morning due to fog and low
stratus, then trending more toward valley fog each morning
through Friday.

&&

.RLX WATCHES/WARNINGS/ADVISORIES...
WV...Flood Watch through late tonight for WVZ005>011-013>020-
     024>034-039-040-515>523-525-526.
OH...Flood Watch through late tonight for OHZ067-075-076-083>087.
KY...Flood Watch through late tonight for KYZ101>103-105.
VA...Flood Watch through late tonight for VAZ003-004.

&&

DISCUSSION...SL
AVIATION...TRM

In the hours before

Special weather statement, Jul 21, 11:29 AM EDT, 1 hour 19 minutes before
Special Weather Statement
National Weather Service Charleston WV
1129 AM EDT Tue Jul 21 2026

OHZ066-067-075-076-211615-
Washington OH-Athens OH-Morgan OH-Perry OH-
1129 AM EDT Tue Jul 21 2026

...STRONG THUNDERSTORMS WILL IMPACT SOUTHEASTERN PERRY...NORTHWESTERN
WASHINGTON...SOUTHERN MORGAN AND NORTHERN ATHENS COUNTIES THROUGH
1215 PM EDT...

At 1128 AM EDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Shawnee to Nelsonville to near Hocking
Hills State Park. Movement was east at 40 mph.

HAZARD...Wind gusts up to 45 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor hail damage to vegetation is
         possible.

Locations impacted include...
Athens, Nelsonville, Glouster, Beverly, Chauncey, Corning,
Stockport, Jacksonville, Trimble, Amesville, and The Plains.

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.

&&

LAT...LON 3959 8159 3959 8158 3958 8156 3940 8173
      3934 8219 3937 8229 3947 8228 3947 8217
      3954 8216 3956 8216 3956 8223 3964 8211
TIME...MOT...LOC 1528Z 281DEG 31KT 3959 8212 3948 8224 3946 8246

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

30
Local storm report, Jul 21, 12:28 PM EDT, 20 minutes before
Preliminary Local Storm Report
National Weather Service Charleston WV
1228 PM EDT Tue Jul 21 2026

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

1219 PM     Rain             2 SE Amesville          39.38N 81.92W
07/21/2026  M0.95 Inch       Athens             OH   Cocorahs

            0.95 inches of rain in 20 minutes located
            2.6 miles southeast of Amesville.

&&

HS

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 21, 3:59 AM EDTFlood WatchRLXAthens, Gallia, Jackson, Lawrence, Meigs, Morgan and 2 more22 hr
Jul 21, 11:29 AM EDTSpecial Weather StatementRLXMorgan46 min
Jul 21, 11:47 AM EDTSevere Thunderstorm WarningRLXAthens, Morgan, Washington28 min
Jul 21, 12:02 PM EDTSevere Thunderstorm WarningRLXAthens, Washington43 min
Jul 21, 12:32 PM EDTFlash Flood WarningRLXAthens4 hr
Jul 21, 1:18 PM EDTFlash Flood WarningRLXWashington3 hr
Jul 21, 1:37 PM EDTSevere Thunderstorm WarningRLXLawrence38 min
Jul 21, 2:06 PM EDTSevere Thunderstorm WarningRLXLawrence39 min
Jul 21, 2:09 PM EDTSevere Thunderstorm WarningRLXPerry23 min
Jul 21, 2:59 PM EDTTornado WarningRLXMorgan18 min
Jul 21, 3:09 PM EDTSevere Thunderstorm WarningRLXMorgan, Perry36 min
Jul 21, 3:29 PM EDTTornado WarningRLXWashington31 min
Jul 21, 3:37 PM EDTFlash Flood WarningRLXPerry4 hr
Jul 21, 3:40 PM EDTSevere Thunderstorm WarningRLXMorgan, Perry, Washington65 min
Jul 21, 3:53 PM EDTTornado WarningRLXWashington37 min
Jul 21, 3:59 PM EDTFlash Flood WarningRLXMorgan, Perry, Washington4 hr
Jul 21, 4:15 PM EDTFlash Flood WarningRLXWashington4 hr
Jul 21, 4:24 PM EDTSevere Thunderstorm WarningRLXAthens, Gallia, Jackson, Meigs, Vinton51 min
Jul 21, 4:29 PM EDTSevere Thunderstorm WarningRLXWashington46 min
Jul 21, 4:36 PM EDTSevere Thunderstorm WarningRLXLawrence54 min
Jul 21, 4:37 PM EDTTornado Warning Tornado observedRLXWashington27 min
Jul 21, 4:50 PM EDTFlash Flood WarningRLXWashington3 hr
Jul 21, 5:12 PM EDTFlash Flood WarningRLXLawrence3 hr
Jul 21, 5:26 PM EDTSevere Thunderstorm WarningRLXGallia, Lawrence49 min
Jul 21, 6:09 PM EDTSevere Thunderstorm WarningRLXLawrence36 min
Jul 21, 6:22 PM EDTTornado WarningRLXLawrence23 min
Jul 21, 6:39 PM EDTFlash Flood WarningRLXLawrence3 hr
Jul 21, 7:56 PM EDTAreal Flood WarningRLXMorgan, Perry, Washington9 hr

Nearby

Flash Flood Warnings in Ohio, 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.