How high is the Allegheny River at Natrona, PA right now?

The Allegheny River at Natrona, PA is currently flowing at 28,200 cubic feet per second with a gage height of 13.08 feet, based on the most recent USGS instantaneous reading.

Is the flow on the Allegheny River at Natrona, PA normal for this time of year?

Current flow is classified as high for October 28. Today's discharge is at the 89th percentile compared to the long-term historical record at this gauge.

Is the Allegheny River at Natrona, PA at flood stage?

No — the gage height is 7.92 feet below the NWS flood-stage threshold of 21.0 feet.

What is the historical median flow for the Allegheny River at Natrona, PA on October 28?

The long-term median discharge for this date is 8,290 cfs based on USGS daily statistics. The 10th–95th percentile range historically is 2,160 to 33,900 cfs.

Where is the Allegheny River at Natrona, PA stream gauge located?

The Allegheny River at Natrona, PA stream gauge is operated by the USGS in Allegheny County, PA on the Allegheny River. USGS site number 03049500 (coordinates 40.6153, -79.7184).

Allegheny River at Natrona, PA

USGS Site No: 03049500 • Allegheny River • Allegheny County, PA

Allegheny River at Natrona, PA on the Allegheny River is currently at 28,200 cfs (High — 89th percentile for this date) . Gage height: 13.08 ft.

Reading from 4 months ago

↑ Upstream on Allegheny River

Allegheny River at Kittanning, PA

28,200

CFS Discharge

13.08

Gage Height (ft)

High

Flow Condition

Normal

Flood Status

Historical Percentile Comparison

Today's discharge compared to the long-term record for October 28 at this station. Percentile rank shows what fraction of historical years had lower flow on this date.

Percentile	Label	CFS Threshold	Today's Flow
10th	Very Low threshold	2,160
25th	Low threshold	4,950
50th (Median)	Normal (median)	8,290
75th	High threshold	16,300
95th	Very High threshold	33,900	Today: 28,200 cfs

30-Day Hydrograph

Recent discharge plotted against the historical 10th–95th percentile envelope for the same calendar days. Source: USGS daily values + long-term statistics.

10th–95th historical Day-of-year median Recent discharge

30-Day Flow History

Date	Discharge (CFS)	Gage Ht (ft)
May 28, 2026	34,800	—
May 27, 2026	36,900	—
May 26, 2026	33,700	—
May 25, 2026	29,100	—
May 24, 2026	19,000	—
May 23, 2026	16,100	—
May 22, 2026	15,600	—
May 21, 2026	16,000	—
May 20, 2026	16,500	—
May 19, 2026	18,800	—
May 18, 2026	23,800	—
May 17, 2026	26,800	—
May 16, 2026	28,800	—
May 15, 2026	31,700	—
Apr 21, 2026	38,300	—
Apr 20, 2026	41,500	—
Apr 19, 2026	37,200	—
Apr 18, 2026	39,200	—
Apr 17, 2026	42,700	—
Apr 16, 2026	35,800	—
Apr 15, 2026	33,100	—
Apr 14, 2026	34,800	—
Apr 13, 2026	36,400	—
Apr 12, 2026	40,000	—
Apr 11, 2026	46,000	—
Apr 10, 2026	51,100	—
Apr 9, 2026	54,100	—
Apr 8, 2026	55,500	—
Apr 7, 2026	57,600	—
Apr 6, 2026	60,600	—

Station Information

USGS Site No: 03049500
State: PA
County: Allegheny County
Coordinates: 40.6153, -79.7184
Drainage Area: 11,410 mi²
Datum (ft): 735.8
HUC Code: 05010009

View on USGS NWIS →

Flood Stage Thresholds

Action Stage: 17.2 ft
Flood Stage: 21.0 ft
Moderate Flood: 24.0 ft
Major Flood: 26.0 ft

Currently 7.92 ft below flood stage.

Recent Extremes

Max discharge: 69,600 cfs

Apr 2, 2026
Min discharge: 2,460 cfs

Sep 20, 2025
Days at flood stage: 0

Computed from the local daily-values archive.

Nearby Gauges

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8.8 mi · 8,970 cfs

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Crooked Creek at Crooked Creek Dam Near Ford City
13.1 mi · 1,160 cfs

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Little Pine Creek Near Etna, PA
13.3 mi · 6 cfs

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Pine Creek at Grant Avenue at Etna, PA
14.4 mi · 8 cfs

Low