PennsylvaniaReservoir, 12,222 acres, McKean County, Warren County
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1,317.54ft
Down 2.18 ft this week
Sailing
CheckingReading the forecast
Kayak and SUP
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Power boating
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Fishing
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Outlook. Monday: WNW wind 3 to 5 kt, gusts to 11 kt, high near 65°F. Tuesday: NE wind 2 to 3 kt, gusts to 6 kt, high near 60°F.
7-day wind forecastLoads when you scroll here
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Last hour of NOAA MRMS radar, 1 km resolution. Map data © OpenStreetMap contributors, OpenMapTiles, OpenFreeMap.
1,317.54ft NAVD88
-2.18 ft in 7 days4.50 ft above the October normal
Reading from Oct 26, 2026. Shaded band: range of October averages on record; dashed line is the typical level.
Allegheny Reservoir was at 1,317.54 ft on October 26, falling 2.18 ft over the past week. That is above normal for October: the typical October level is 1,313.04 ft, so the lake is 4.50 ft above its usual mark.
Background reading: Allegheny Reservoir on Wikipedia
Allegheny Reservoir is a 12,222-acre reservoir in McKean County, Warren County, Pennsylvania. The water surface sits about 1,325 ft above sea level.
We read the level from USGS gauge 03012520, listed as Allegheny Reservoir near Warren, PA. Wind and weather come from the National Weather Service grid cell over the lake, so the numbers describe open water rather than the nearest airport.
On a lake this size the wind has miles of open water to work with, so a 15 kt breeze can stack up a steep chop in the main basin while sheltered coves stay flat. Reservoir levels move with releases and inflow, so ramps and beaches can change week to week. The water level page tracks that day by day.
The go or no-go calls above are a starting point, not a guarantee. Read how we score conditions, and always check local rules and posted warnings before you launch.
The National Weather Service forecast for the lake from October 26: Monday: WNW wind 3 to 5 kt, gusts to 11 kt, high near 65°F. The panel at the top of this page refreshes the current wind, gusts and direction when you open it and turns them into a call for sailing, paddling, power boating and fishing.
Allegheny Reservoir was at 1,317.54 ft on October 26, falling 2.18 ft over the past week. That is above normal for October: the typical October level is 1,313.04 ft, so the lake is 4.50 ft above its usual mark.
Allegheny Reservoir covers about 12,222 acres (19 square miles) of surface water.
If Allegheny is blown out, these are the closest alternatives. Tap through for their conditions.