Alert archive / Ohio / Flash Flood Warnings in 2021

Flash Flood Warning 70, NWS Charleston, WV

June 30, 2021Athens County, Ohio

NWS Charleston, WV issued this flash flood warning at Jun 30, 2021, 5:50 PM EDT for Athens County, Ohio. It was in force for 4 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
Jun 30, 2021, 5:50 PM EDT (21:50 UTC)
Expired
Jun 30, 2021, 9:51 PM EDT
In force
4 hr
Issued by
NWS Charleston, WV
Area
Storm-based polygon
Flood severity
None

County Athens County, OH

The radar

The Charleston,WV radar (KRLX), 113 km from the middle of the area, began a volume at 21:52 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 30, 6:28 PM EDTFLASH FLOOD1 Sw Athens, OHHIGH WATER. WATER RUNNING OVER RICHLAND AVENUE NEAR UNIVERSITY COURTLAND APARTMENTS. VIDEO INCLUDED WITH REPORT ON TWITTER.

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, 9.8 hours before the alert went out and 158 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 2021-06-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 608 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 2021-06-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
608 J/kg
Mixed-layer CIN
-78 J/kg
Mixed-layer LCL
1164 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
-19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

314 
WGUS51 KRLX 302150
FFWRLX
OHC009-010345-
/O.NEW.KRLX.FF.W.0070.210630T2150Z-210701T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Charleston WV
550 PM EDT Wed Jun 30 2021

The National Weather Service in Charleston has issued a

* Flash Flood Warning for...
  Southern Athens County in southeastern Ohio...

* Until 1145 PM EDT.

* At 550 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 2 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...
  Athens and Stroud Run State Park.

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 3926 8209 3927 8219 3933 8223 3936 8203
      3938 8189 3933 8185 3932 8185 3932 8184
      3931 8184 3930 8184 3930 8183 3926 8205

FLASH FLOOD...RADAR INDICATED

$$

ARJ
1 follow-up statement
173 
WGUS71 KRLX 010151
FFSRLX

Flash Flood Statement
National Weather Service Charleston WV
951 PM EDT Wed Jun 30 2021

OHC009-010201-
/O.CAN.KRLX.FF.W.0070.000000T0000Z-210701T0345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Athens OH-
951 PM EDT Wed Jun 30 2021

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHERN ATHENS 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.

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

LAT...LON 3926 8209 3927 8219 3933 8223 3936 8203
      3938 8189 3933 8185 3932 8185 3932 8184
      3931 8184 3930 8184 3930 8183 3926 8205

$$

ARJ

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 30, 11:59 AM EDTSpecial Weather StatementRLXPerry31 min
Jun 30, 12:24 PM EDTSpecial Weather StatementRLXMorgan36 min
Jun 30, 1:04 PM EDTSpecial Weather StatementRLXMorgan26 min
Jun 30, 1:31 PM EDTSpecial Weather StatementRLXMeigs29 min
Jun 30, 1:38 PM EDTSpecial Weather StatementRLXWashington22 min
Jun 30, 1:55 PM EDTSevere Thunderstorm WarningRLXWashington35 min
Jun 30, 2:09 PM EDTFlash Flood WatchRLXAthens, Gallia, Jackson, Lawrence, Meigs, Morgan and 3 more39 hr
Jun 30, 5:14 PM EDTSpecial Weather StatementRLXAthens, Vinton46 min
Jun 30, 5:40 PM EDTSevere Thunderstorm WarningRLXAthens37 min
Jun 30, 6:25 PM EDTSpecial Weather StatementRLXMorgan35 min
Jun 30, 7:25 PM EDTSpecial Weather StatementRLXVinton35 min

Nearby

Flash Flood Warnings in Ohio, 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.