Special Weather Statement
None

At 450 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near St. Marys to 16 miles northeast of Clearfield to 11 miles northwest of Bellefonte to near State College to 11 miles east of Tyrone. Movement was east at 25 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... State College, Lock Haven, Bellefonte, Park Forest Village, Woodward, Boalsburg, Keating, Pleasant Gap, Lamar, Stormstown, Lemont, Zion, Houserville, Mill Hall, Penfield, Dunnstown, Flemington, Centre Hall, Renovo, and Castanea.

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Special Weather Statement
Until 2026-08-11T05:15:00-04:00 • National Weather Service
At 450 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near St. Marys to 16 miles northeast of Clearfield to 11 miles northwest of Bellefonte to near State College to 11 miles east of Tyrone. Movement was east at 25 mph. HAZARD...Wind gusts up to 50 mph. SOURCE...Radar indicated. IMPACT...Gusty winds could knock down tree limbs and blow around unsecured objects. Locations impacted include... State College, Lock Haven, Bellefonte, Park Forest Village, Woodward, Boalsburg, Keating, Pleasant Gap, Lamar, Stormstown, Lemont, Zion, Houserville, Mill Hall, Penfield, Dunnstown, Flemington, Centre Hall, Renovo, and Castanea.

SINNEMAHONING CREEK AT SINNEMAHONING, PA

Realtime Data • Report • Conditions

386

Discharge (cfs)

2.7

Gauge Height (ft)

USGS 01543500

Streamflow discharge was last observed at 467 cfs, and a gauge height of 2.67 feet. With the % decrease since yesterday, the streamflow average over the past 10 days is 361 .

Weather today, Tomorrow,

The creek receives contributions from its many tributaries, including Driftwood Branch and Hicks Run. The area is also home to the George B. Stevenson Dam, which regulates water levels in the creek. The flow in Sinnemahoning Creek varies by season, with peak flows occurring in the spring due to snowmelt and rainfall. Interesting hydrological facts include the presence of the Sinnemahoning Snake, a rare species of water snake found only in this creek, and the creek's importance as a habitat for fish such as brook trout and smallmouth bass.

August 11, 2026

Elevation	778.0 ft
Last Updated
Gage height, ft	2.67 ft
Stream water level elevation above NAVD 1988, in ft	771.46 ft
Streamflow, ft³/s	467.0 ft3/s
Percent of Normal	269%
Year Over Year Average	143 cfs
24hr Flow Prediction	cfs
Maximum Recorded	19,400 cfs
Geolocation	41.32, -78.10

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Sinnemahoning Creek At Sinnemahoning, Pa Realtime Data

SINNEMAHONING CREEK AT SINNEMAHONING, PA

Realtime Data • Report • Conditions

386

Discharge (cfs)

2.7

Gauge Height (ft)

August 11, 2026

Seasonal Comparison

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Sinnemahoning Creek At Sinnemahoning, Pa Realtime Data

SINNEMAHONING CREEK AT SINNEMAHONING, PA

Realtime Data • Report • Conditions

386

Discharge (cfs)

2.7

Gauge Height (ft)

August 11, 2026

Seasonal Comparison

Oceanic Nino Index

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