Grays Lake Diversion to Blackfoot R Basin near Wayan water level

Name: Grays Lake Diversion to Blackfoot R Basin near Wayan 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, Grays Lake Diversion to Blackfoot R Basin, Idaho, United States

Directions

Low for late October

Water level

2.57ft Steady over the last 24 hours

Measured Oct 21, 2026, 01:15 AM MDT (10 min ago)

Flow: 0.0 cfs

History

7 days

Water level

What this means

Low water at Grays Lake Diversion to Blackfoot R Basin near Wayan: the gauge reads 2.57 ft, below normal for late October.

The level has held steady over the past 24 hours. Without real rain upstream, that is unlikely to change quickly. The 30-day range is 2.47 ft – 2.58 ft.

Fall is often low-water season on rivers, and it usually takes a few days of steady rain to change that.

Compared with 5 years of daily readings for this time of year. How to read levels

Key numbers

Highest on record: 8.60 ftApril 26, 1974

Paddling and fishing conditions

At low levels, plan for shorter paddling trips and expect to walk your boat through a few shoals.

Highest crests on record

Rank	Level	Date
1	8.60 ft	April 26, 1974
2	8.17 ft	June 2, 2011
3	5.00 ft	August 14, 2001

Weather at the gauge

No rain in the last 3 days.

17 Sat 59° 31° – Wind 14 mph

18 Sun 61° 40° – Wind 12 mph

19 Mon 63° 42° – Wind 12 mph

20 Tue 59° 44° 0.02 in, 23% Wind 13 mph

21 Wed 64° 42° – Wind 14 mph

22 Thu 64° 44° 0.27 in, 53% Wind 10 mph

23 Fri 45° 34° 1.48 in, 78% Wind 11 mph

Forecast: Open-Meteo

Sunrise 07:47 AM Sunset 06:35 PM Daylight 10 hr, 48 min Waxing gibbous 75%

Map

Nearby gauges

Gauge	Level	Compared with normal	24 hours	Distance
Blackfoot River above Reservoir near HenryRiver gauge, Blackfoot River	1.64 ft	Below flood stage	+0.01 ft	13 mi
Salt River above Reservoir, near EtnaRiver gauge, Salt River	1.88 ft	Below flood stage	+0.01 ft	24 mi
Palisades ReservoirReservoir	5,515.51 ft	Low		27 mi
Snake River near IrwinRiver gauge, Snake River	1,770 cfs	Low	+20.0 cfs	28 mi
Greys River above Reservoir, near AlpineRiver gauge, Greys River	241 cfs	Low	±0	28 mi
Willow Creek below Tex Creek near RirieRiver gauge, Willow Creek	16.3 cfs	Very low	+2.1 cfs	32 mi
Blackfoot River near ShelleyRiver gauge, Blackfoot River	5.48 ft	Below flood stage	±0	33 mi
Snake River above Reservoir, near AlpineRiver gauge, Snake River	1,760 cfs	Normal	−40.0 cfs	33 mi

Questions and answers

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 Grays Lake Diversion to Blackfoot R Basin near Wayan today?

On Oct 21, 2026, 01:15 AM MDT, the water level was 2.57 ft. Steady over the last 24 hours.

Is Grays Lake Diversion to Blackfoot R Basin near Wayan rising or falling?

Steady over the last 24 hours.

Is the level of Grays Lake Diversion to Blackfoot R Basin near Wayan normal?

Low for late October. Compared with 5 years of daily readings for this time of year.

What is the highest water level ever recorded at Grays Lake Diversion to Blackfoot R Basin near Wayan?

The highest level on record is 8.60 ft on April 26, 1974.

How often is this data updated?

The U.S. Geological Survey publishes a new reading every 15 minutes. This page refreshes within minutes of each update.

Where does this data come from?

The values come directly from the U.S. Geological Survey, the official operator of this gauge, and are in the public domain. We do not estimate or model live values.

For specialists

Station codes, datum, parameters, data quality and downloads

Operator: U.S. Geological Survey
Station code: usgs:13057300 (Agency page)
Coordinates: 43.00556, -111.49361 (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	2.57 ft	2026-10-21 07:15	Provisional
Flow	0.0 cfs	2026-10-21 07:15	Provisional

Download

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How to cite

U.S. Geological Survey: Grays Lake Diversion to Blackfoot R Basin near Wayan (usgs:13057300). Accessed October 21, 2026 via Nivelmap, https://nivelmap.com/en/united-states/idaho/grays-lake-diversion-to-blackfoot-r-basin-near-wayan

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