Portneuf River at Pocatello water level

Name: Portneuf River at Pocatello water level (U.S. Geological Survey)
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

River gauge, Portneuf River, Idaho, United States

Directions

Below flood stage

Water level

3.74ft Steady over the last 24 hours

Measured Oct 19, 2026, 09:45 AM MDT (2 hours ago)

Flow: 129 cfs

History

7 days

Water level Forecast Minor flood stage

The forecast expects the river to rise to 5.32 ft by Sunday, October 25 at 12:00 AM. Issued Monday, October 19 at 08:50 AM by NOAA National Weather Service.

What this means

The gauge at Portneuf River at Pocatello reads 3.74 ft, a normal level.

It is 4.76 ft below the flood stage of 8.50 ft.

It has barely moved over the past 24 hours. The forecast expects the river to rise to 5.32 ft by Sunday, October 25 at 12:00 AM. Over the past 30 days it has moved between 3.65 ft and 3.81 ft.

Judged against the official flood stage for this gauge. How to read levels

Key numbers

Highest on record: 13.85 ftMay 17, 1984
Forecast peak: 5.32 ftSunday, October 25 at 12:00 AM

What the stage means on the water

A normal level is usually prime time for floating and wade fishing, as long as the weather holds upstream.

The National Weather Service puts flood stage for this gauge at 8.50 ft, still 4.76 ft away.

What happens at each level

10.00 ft: Significant flooding of agricultural land will occur from the Inkom and Blackrock area. Lowland flooding will occur along sections of the river in Pocatello from Portneuf Gap to the Cheyenne Avenue Bridge and downstream of the concrete channel beginning at Sacajawea Park.
9.40 ft: Water will encroach around sitting benches near the river at the Pacific Recycling Trailhead.
9.15 ft: Flooding of low lying agricultural land and pasture will occur in the Inkom and Blackrock area. Lowland flooding is likely along sections of the river between Portneuf Gap and the Cheyenne Avenue Bridge in Pocatello.
8.50 ft: Sections of Sacajawea Park will be under water and the trail is usually closed at this level. Marsh Creek near Inkom may also be over its banks.
8.00 ft: Water will encroach onto portions of the bike and walking trail next to the river in Sacajawea Park in Pocatello.
3.74 ft: Right now

Impact statements from the U.S. National Weather Service.

Highest crests on record

Chance of at least minor flooding in October to December: < 5 %.

Rank	Level	Date
1	13.85 ft	May 17, 1984
2	11.19 ft	May 31, 1983
3	11.14 ft	May 30, 2023
4	10.52 ft	May 3, 2006
5	9.95 ft	May 27, 2011
6	9.59 ft	May 14, 1971
7	9.41 ft	April 26, 1986
8	9.40 ft	May 19, 1975
9	9.26 ft	April 27, 2019
10	9.14 ft	May 20, 1997

Weather at the gauge

No rain in the last 3 days.

18 Sun 71° 49° – Wind 11 mph

19 Mon 71° 54° – Wind 13 mph

20 Tue 69° 54° – Wind 16 mph

21 Wed 71° 51° 0.02 in Wind 12 mph

22 Thu 71° 52° 0.04 in, 63% Wind 15 mph

23 Fri 53° 46° 0.35 in, 75% Wind 14 mph

24 Sat 57° 42° – Wind 7 mph

Forecast: Open-Meteo

Sunrise 07:49 AM Sunset 06:42 PM Daylight 10 hr, 54 min First quarter 61%

Map

Other gauges on the Portneuf River

Gauge	Level	Compared with normal	24 hours	Distance
Portneuf River at PebbleRiver gauge, Portneuf River	5.01 ft	No reference yet	+0.01 ft	25 mi
Portneuf River at TopazRiver gauge, Portneuf River	2.49 ft	Below flood stage	−0.01 ft	26 mi
Portneuf River near TyheeRiver gauge, Portneuf River	4.55 ft	Below flood stage	−0.01 ft	6 mi

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Spring Creek at Sheepskin Road near Fort HallRiver gauge, Spring Creek	228 cfs	Very low	+2.0 cfs	13 mi
Snake River near BlackfootRiver gauge, Snake River	2.93 ft	Below flood stage	−0.16 ft	18 mi
Blackfoot River and Bypass Channel near BlackfootRiver gauge, Blackfoot River and Bypass Channel	159 cfs	Low	−5.0 cfs	18 mi
Blackfoot River near BlackfootRiver gauge, Blackfoot River	3.07 ft	Below flood stage	−0.03 ft	18 mi
Marsh Creek near McCammonRiver gauge, Marsh Creek	2.54 ft	Below flood stage	−0.02 ft	21 mi
Blackfoot River Bypass near BlackfootRiver gauge, Blackfoot River Bypass	52.7 cfs	Low	−4.2 cfs	21 mi
Blackfoot River below North Canal at BlackfootRiver gauge, Blackfoot River	166 cfs	Low	−6.0 cfs	22 mi
American Falls ReservoirReservoir	4,313.23 ft	Low		22 mi

Questions and answers

What is flood stage for the Portneuf River at Pocatello?

The official flood stage is 8.50 ft. The level is currently 4.76 ft below it.

Is gage height the same as water depth?

No. Gage height is measured from a fixed reference point chosen by the agency, so a reading of 10 ft does not mean the river is 10 ft deep.

What is the water level of Portneuf River at Pocatello today?

On Oct 19, 2026, 09:45 AM MDT, the water level was 3.74 ft. Steady over the last 24 hours.

Is Portneuf River at Pocatello rising or falling?

Steady over the last 24 hours.

Is the level of Portneuf River at Pocatello normal?

Below flood stage. Judged against the official flood stage for this gauge.

What is the highest water level ever recorded at Portneuf River at Pocatello?

The highest level on record is 13.85 ft on May 17, 1984.

Is Portneuf River at Pocatello expected to rise?

The forecast expects the river to rise to 5.32 ft by Sunday, October 25 at 12:00 AM.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:13075500 (Agency page)
Coordinates: 42.87167, -112.46806 (WGS84)
Vertical datum: NAVD88
Update interval: every 15 minutes
Licence: Public domain. Data: U.S. Geological Survey (USGS), provisional data subject to revision

Published series

Parameter	Last value	Time (UTC)	Quality
Water level	3.74 ft	2026-10-19 15:45	Provisional
Flow	129 cfs	2026-10-19 15:45	Provisional

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How to cite

U.S. Geological Survey: Portneuf River at Pocatello (usgs:13075500). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/portneuf-river-at-pocatello

How we check values

Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.

Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer