Rivermatics

USGS Streamgage 13128900

Lower Cedar Creek Ab Divs near Mackay, ID

Lower Cedar Creek Ab Divs near Mackay, ID is USGS streamgage 13128900 in Idaho, monitoring river discharge in hydrologic subbasin 17040218. It drains a watershed of about 8 square miles. Discharge records at this site go back to 1963. Typical flow runs near 23.7 cfs in July and 6.4 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
Idaho
Drainage area
8 sq mi
Subbasin (HUC-8)
17040218
Coordinates
43.96694, -113.57778
USGS site number
13128900
Records begin
1963-06-15 (63 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Lower Cedar Creek Ab Divs near Mackay, ID. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.

Forecast daily mean discharge in cubic feet per second, by date
Date Low p10 Expected p50 High p90 Range
11.1 11.5 12
10.9 11.4 12
10.6 11.2 12
10.4 11.1 12
10.2 11 12
10 10.9 12.3
9.9 10.9 12.3
9.7 10.8 12.4
9.5 10.6 12.4
9.3 10.4 12.1
9.1 10.3 12.1
9 10.2 12.2
8.8 10.1 12
8.7 10 11.9

All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.

Typical flow by month

Long-term daily discharge percentiles from the USGS record (up to 6 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.

Historical monthly discharge percentiles in cubic feet per second
Month Low p10 Typical p50 High p90 Range
January — 4.6 —
February — 4.1 —
March — 3.9 —
April — 6.4 —
May — 24.4 —
June — 48.6 —
July — 23.7 —
August — 13.3 —
September — 10.5 —
October — 9 —
November — 7.7 —
December — 5.9 —

All values in cubic feet per second (cfs).

Common questions

When does Lower Cedar Creek Ab Divs near Mackay, ID normally run highest?
June, on the long-term record. The median daily flow that month is about 48.6 cfs, against 3.9 cfs in March, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
How long has Lower Cedar Creek Ab Divs near Mackay, ID been measured?
Discharge records at USGS site 13128900 begin in 1963, about 63 years, covering roughly 2,686 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Lower Cedar Creek Ab Divs near Mackay, ID?
Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
Where is Lower Cedar Creek Ab Divs near Mackay, ID?
The gauge sits at 43.96694, -113.57778, in Idaho, in hydrologic subbasin 17040218, draining roughly 8 square miles.
Can I use Lower Cedar Creek Ab Divs near Mackay, ID data for flood or safety decisions?
No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.

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