River Conditions
Illustrated map of Allegheny Reservoir

River stage

Zelienople, Connoquenessing Creek

River level
2.44 ft
Status
Below flood stage
7-day change
+0.71 ft
Recent high
5.71 ft
Recent low
1.48 ft

Last reported 2026-10-13 | NWS ZLPP1

30-day change
-2.33 ft
Average
2.25 ft
Readings
122
Data span
122 days
Record crest
18.17 ft

In brief

The Connoquenessing Creek at Zelienople, PA read 2.44 ft on Oct 13, 2026, 5.56 ft below action stage. That is 2.33 ft lower than 30 days earlier.

Source: National Weather Service gauge ZLPP1

Water 64 °F (18 °C) · 5 °F warmer than normal for this date · +3 °F in 24 hours

River level timeline

0.72.84.86.98.9SEP 13SEP 18SEP 23SEP 28OCT 03OCT 08OCT 13ACTION 8.00 ftHIGH 5.71LOW 1.642.57 ftLAST READING

Stage threshold profile

Action stage 8.00 ftMinor flooding 10.00 ftModerate flooding 14.00 ftMajor flooding 18.00 ft CURRENT 2.44 ft

Highest crests on record

RankCrestDate
1 18.17 ft 2004-09-18
2 16.66 ft 1924-06-29
3 15.55 ft 1954-10-16
4 15.34 ft 2019-05-29
5 15.24 ft 2024-04-03
6 14.76 ft 2010-12-01
7 14.75 ft 2004-09-09
8 14.36 ft 2018-09-10

Flood crests recorded at this gauge by the National Weather Service.

What happens at each level

  1. 10.00 ft

    Water reaches Mercer Road and Waterfront Street in Ellwood City, and Narrows Road in Franklin Township.

  2. 10.50 ft

    Water affects Country Club road to the high school in North Sewickley Township and water gets onto Hartzell School road to near Fombell bridge in Marion township.

  3. 11.00 ft

    At 11.0 feet water begins to flood portions of Horseshoe Lane...upstream of Zelienople near the intersection of Prospect Rd and Hartmann Rd.

  4. 14.00 ft

    The Connoquenessing Creek surrounds and floods homes in the lower end of Harmony.

  5. 14.76 ft

    Flooding reaches levels of December 1, 2010.

  6. 18.17 ft

    Flooding reaches levels reached during the Hurricane Ivan flood of September 18, 2004.

Written by the local National Weather Service forecast office for this exact gauge.

Frequently asked questions

Is the Connoquenessing Creek flooding at Zelienople?

No. The Connoquenessing Creek at Zelienople is at 2.44 ft, 5.56 ft below action stage.

What is the flood stage at Zelienople?

The National Weather Service sets action stage 8 ft, minor flooding 10 ft, moderate flooding 14 ft and major flooding 18 ft.

What is the highest the Connoquenessing Creek has been at Zelienople?

The highest crest on record is 18.17 ft, on 2004-09-18.

Is the Connoquenessing Creek high or low right now at Zelienople?

At 2.44 ft it is higher than 74% of readings over the last 122 days.

How warm is the water at Zelienople, Connoquenessing Creek?

The water temperature at Zelienople, Connoquenessing Creek is 64 °F (17.5 °C), measured 7:30 pm by USGS, which is 5 °F warmer than normal for this date over the past ten years. It has risen 2.7 °F in the last 24 hours.

Stage and flood information from the NOAA National Weather Service (gauge ZLPP1); daily history from the U.S. Geological Survey (site 03106000). Last reading 2026-10-13. For flood safety decisions always follow official National Weather Service warnings.