Rivermatics

USGS Streamgage 12180500

Diobsud Creek near Marblemount, WA

Diobsud Creek near Marblemount, WA is USGS streamgage 12180500 in Washington, monitoring river discharge in hydrologic subbasin 17110005. It drains a watershed of about 25 square miles. Discharge records at this site go back to 2024. Typical flow runs near 80.2 cfs in July and 149.6 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.

View live conditions & forecast →

Gauge details

State
Washington
Drainage area
25 sq mi
Gauge elevation
346 ft
Subbasin (HUC-8)
17110005
Coordinates
48.56092, -121.41788
USGS site number
12180500
Records begin
2024-03-27 (2 years)
Rivermatics forecast
14-day flow outlook

14-day flow forecast

Based on observations through for Diobsud Creek near Marblemount, WA. 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
18.2 20.7 23.3
17.7 21.1 25.9
18 22.3 29.2
18.6 23.6 31.2
17.5 22 28.2
16.2 20.2 25.6
15.6 19.5 24.8
14.9 18.8 24.1
14.2 18.1 23.3
13.8 17.6 22.7
15.2 20.8 30.3
14.5 19 25.4
14.1 18.5 24.7
13.7 18.1 24.2

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 2 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 — 65.2 —
February — 122.1 —
March — 211.8 —
April — 149.6 —
May — 184 —
June — 187.6 —
July — 80.2 —
August — 53.4 —
September — 33.1 —
October — 137.6 —
November — 283.9 —
December — 271.2 —

All values in cubic feet per second (cfs).

Common questions

When does Diobsud Creek near Marblemount, WA normally run highest?
November, on the long-term record. The median daily flow that month is about 283.9 cfs, against 33.1 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
How long has Diobsud Creek near Marblemount, WA been measured?
Discharge records at USGS site 12180500 begin in 2024, about 2 years, covering roughly 861 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
Is there a flow forecast for Diobsud Creek near Marblemount, WA?
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 Diobsud Creek near Marblemount, WA?
The gauge sits at 48.56092, -121.41788, in Washington, in hydrologic subbasin 17110005, at an elevation of about 346 feet, draining roughly 25 square miles.
Can I use Diobsud Creek near Marblemount, WA 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.

Other gauges in this subbasin