Alert archive / Ohio / Flash Flood Warnings in 2023

Flash Flood Warning 21, NWS Wilmington, OH

August 14, 2023Scioto County, Ohio

NWS Wilmington, OH issued this flash flood warning at Aug 14, 2023, 6:36 AM EDT for Scioto County, Ohio. It was in force for 3 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: Aug 14, 2023, 6:36 AM EDT (10:36 UTC)
Expired: Aug 14, 2023, 9:07 AM EDT
In force: 3 hr
Issued by: NWS Wilmington, OH
Area: Storm-based polygon
Flood severity: None

County Scioto County, OH

The radar

The Charleston,WV radar (KRLX), 102 km from the middle of the area, began a volume at 10:36 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.

The nearest sounding before it

Cncnati-Daytn, OH (KILN), launched 00:00Z, 10.6 hours before the alert went out and 118 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 8 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 1545 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 33 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

919 
WGUS51 KILN 141036
FFWILN
OHC145-141345-
/O.NEW.KILN.FF.W.0021.230814T1036Z-230814T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Wilmington OH
636 AM EDT Mon Aug 14 2023

The National Weather Service in Wilmington has issued a

* Flash Flood Warning for...
  Southeastern Scioto County in southwestern Ohio...

* Until 945 AM EDT.

* At 636 AM EDT, radar indicated thunderstorms producing heavy rain 
  across the warned area. Between 2.5 and 3.5 inches of rain have 
  fallen. Additional rainfall amounts of 0.5 to 1 inch are possible. 
  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 may experience flash flooding include...
  Wheelersburg, South Webster, Lyra and Powellsville.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to higher ground now. Act quickly to protect your life.

To report flash flooding, go to our website at weather.gov/iln and 
submit your report via social media, when you can do so safely.

&&

LAT...LON 3865 8277 3865 8278 3869 8282 3880 8284
      3888 8280 3891 8276 3885 8276 3885 8265
      3875 8266 3875 8270 3868 8271 3868 8276

FLASH FLOOD...RADAR INDICATED

$$

Campbell

1 follow-up statement

144 
WGUS71 KILN 141307
FFSILN

Flash Flood Statement
National Weather Service Wilmington OH
907 AM EDT Mon Aug 14 2023

OHC145-141317-
/O.CAN.KILN.FF.W.0021.000000T0000Z-230814T1345Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Scioto OH-
907 AM EDT Mon Aug 14 2023

...FLASH FLOOD WARNING IS CANCELLED FOR SOUTHEASTERN SCIOTO 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 3865 8277 3865 8278 3869 8282 3880 8284
      3888 8280 3891 8276 3885 8276 3885 8265
      3875 8266 3875 8270 3868 8271 3868 8276

$$

CA

The office that day

Everything else NWS Wilmington, OH issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 14, 5:54 AM EDT	Areal Flood Advisory	ILN	Scioto	45 min
Aug 14, 5:50 PM EDT	Areal Flood Advisory	ILN	Fairfield, Hocking	3 hr
Aug 14, 7:47 PM EDT	Special Weather Statement	ILN	Warren	43 min

Nearby

Flash Flood Warnings in Ohio, 2023 Every flash flood warning in 2023

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.