Black Fork Mohican River at Loudonville, OH

River level and flood forecast · Ashland County

Normal3.3 ftas of Mon 4:45 PM

The river is 6.7 ft below flood stage (10 ft).

The last 7 days and the forecast

24681012TueWedThuFriSatSunMonAction 9 ftFlood 10 ftModerate 11 ftNowObserved (ft)NWS forecast

NWS forecast issued Sun, Dec 31, 7 PM. Forecasts change as rain falls and as upstream water arrives.

Flood stages

Major flood stage15 ft
Moderate flood stage11 ft
Flood stage10 ft
Action stage9 ft
Record crest (April 5, 2026)11.81 ft

What floods at each level

From the National Weather Service, highest first.

  • 18 ftWally Road and adjacent campgrounds flooded. Both the Loudonville Water Department and Sewage Treatment Plant flooded.
  • 17 ftSeveral campgrounds along the Black Fork will be flooded. Significant evacuations will be needed. Wally Road inundated and impassable. Loudonville sewage treatment plant will be threatened.
  • 15 ftWally Road will become inundated. Several campgrounds adjacent to the river will be flooded.
  • 11 ftCampgrounds along Walley Road will begin to inundate. Evacuations may be necessary.
  • 10 ftMohican River will be at bankful through much of Loudonville. Some low lying campgrounds near the river could see some minor inundation.

Highest crests on record

  1. 11.81 ft — April 5, 2026
  2. 11.56 ft — July 10, 2013
  3. 11.47 ft — May 10, 2021
  4. 11.05 ft — April 4, 2018
  5. 10.95 ft — April 6, 2025

Recent crests: 11.81 ft (April 5, 2026) · 10.95 ft (April 6, 2025) · 11.47 ft (May 10, 2021) · 10.55 ft (June 17, 2019) · 11.05 ft (April 4, 2018)

Up and down the river, and nearby

Not an official source. River levels, forecasts, flood stages and impacts are from the National Weather Service (LDVO1); flow from the U.S. Geological Survey. Readings are provisional. In a flood, follow your local officials and the NWS at weather.gov.