Issaquah Creek Near Hobart Flow Report

Washington, USA USGS #12120600 ↗

As of July 16, 2026, Issaquah Creek Near Hobart is flowing at 13 cfs with a gage height of 3.99 ft. Source: USGS gauge #12120600, refreshed throughout the day.

Stale data This gauge hasn’t reported in days (last reading unknown). The readings below may not reflect current conditions.
Today high
--
Tonight low
--
Streamflow
--
Gage height
--
Loading current conditions…
Next 24 hours
Loading next 24 hours…
Right now · latest observation
Issaquah Creek Near Hobart
USGS gauge #12120600
13 cfs streamflow
Latest reading from this gauge.
Gage height
3.99ft
Water temp
--
% of median
Since yesterday
— 0%
Loading streamflow history…
Conditions summary

Issaquah Creek Near Hobart at a glance

How Issaquah Creek Near Hobart is running right now, where it sits on the map, and the key gauge stats.

Issaquah Creek Near Hobart is flowing at 13 cfs, with the water sitting 3.99 ft at the gage.

This is USGS gauge #12120600 in Washington. Over the past 10 days the average has been 15 cfs, peaking at 19 cfs.

For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Washington flow report.

Issaquah Creek Near Hobart on the map Open map →
Site IDUSGS 12120600
Last updated2026-07-15
Gage height, ft3.99 ft
Streamflow, ft³/s13.1 ft3/s
Max recorded1,370 cfs
Engineering & permitting

Engineering Data

Flow-duration statistics and observed peak-flow context computed from this gauge’s complete daily record (USGS #12120600).

P10 exceedanceexceeded 10% of days
P25 exceedanceexceeded 25% of days
P50 (median)exceeded half of days
P75 exceedanceexceeded 75% of days
P90 exceedanceexceeded 90% of days
Period of recorddaily observations
Conditions report:

Percentiles are flow-duration values computed from this gauge’s observed daily record as archived by Snoflo. Return periods are Weibull plotting-position estimates from observed annual maxima, provided as general reference context only. Always verify against official USGS NWIS records. Part of Snoflo for Engineering.

Streamflow outlook

Streamflow Forecast

Over the next 5 days, Issaquah Creek Near Hobart is expected to recede from today's 13 cfs, toward roughly 11 cfs by 2026-07-20 (likely range 7-17 cfs) -- drier than normal for the date.

Powered by PULSE — Snoflo’s forecast engine, trained on this gauge’s full record of storms, snowmelt, and dry spells.

Loading flow outlook…
Daily forecast table
DateExpected (p50)Likely range (p25–p75)vs normalProjected stage
Work-window check: flow below cfs
Historical context

How does this compare to past years?

Year-over-year overlay, annual peak discharge, the full distribution of daily flows on record, and the gauge's rating curve.

Detailed forecast

Weather Forecast

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

Loading hourly forecast…
Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
Loading detailed forecast…
Long-term outlook

15-day forecast

Daily temperatures, snow, and rain projected over the next two weeks.

Loading 15-day outlook…
About this location

Issaquah Creek Near Hobart

The creek is primarily fed by rainwater and snowmelt, and its flow is influenced by several tributaries, including Mine Creek and Tibbetts Creek. The creek is also affected by the presence of dams, such as the Issaquah Salmon Hatchery Dam. Seasonal trends in flow are common, with higher flows in the winter and spring due to increased precipitation and snowmelt. Interesting facts about the hydrology of Issaquah Creek include its importance as a habitat for salmon and other fish species, and its role in providing water for irrigation and drinking water for nearby communities.

Regional streamflow

Nearby streamflow levels

Cross-check Issaquah Creek Near Hobart's discharge against nearby gauges to spot whether the change here is local or regional.

Regional snowpack

Nearby snowpack data

Snowpack at SNOTEL stations near Issaquah Creek Near Hobart. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.

SNOTEL stationSnowpack
Kent 0 in
Cougar Mountain 1 in
Nohrsc Cougar Mountain 1 in
Lynn Lake 0 in
Lynn Lake 0 in
Mount Gardner 0 in
Nearby recreation

Plan a trip

Reservoirs, boat launches, river runs, and fishing spots within driving distance of Issaquah Creek Near Hobart.

River levels & flood safety

Read the level before you go
A river that's runnable at one flow can be deadly at another. Check current discharge and gage height — like the values shown above — against the flood-stage thresholds, and remember levels can spike fast after rain or a dam release.
Respect cold water
Snowmelt rivers run cold even in summer. Sudden immersion triggers cold-water shock and saps strength within minutes. Wear a PFD, dress for the water temperature (not the air), and never wade or paddle alone.
Watch for swiftwater hazards
Strainers (downed trees), undercut rocks, and low-head dams are the deadliest features on moving water. High, fast, muddy water hides them. If in doubt, scout from shore and portage.
Mind flash floods & releases
Narrow canyons can flood from a storm miles upstream, and dam-controlled reaches can rise without warning. Know the forecast, the release schedule, and your exit before you launch.

Track Issaquah Creek Near Hobart in the Snoflo app

Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Issaquah Creek Near Hobart crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.

FAQ

About Issaquah Creek Near Hobart

Where does the streamflow data for Issaquah Creek Near Hobart come from?

Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 12120600. Snoflo refreshes the time series throughout the day. Forecasts come from the NOAA / yr.no feed Snoflo's iOS app uses.

How often is the report updated?

USGS gauges report continuously (typically every 15 minutes). Snoflo pulls fresh values throughout the day — look for the "as of" timestamp on the streamflow hero card.

What's the difference between discharge and gage height?

Discharge (cubic feet per second, or cfs) is the volume of water flowing past the gauge each second. Gage height is how high the water sits at the gauge (feet). They're related by a rating curve specific to each gauge — higher water means more flow, but the exact ratio depends on channel shape.

How is "percent of median" calculated?

Today's discharge is compared to the historical median discharge on this calendar day across the gauge's full record. 100% = right on median; 200% = a very high year; 30% = a drought-level low.

What are flood stages, and is this river safe right now?

Flood stages are NWS-defined gage-height thresholds — Action, Minor, Moderate, Major — marking when nearby roads or floodplains start to be affected. "Safe" depends on your activity and skill: a level that's a fun paddle for an expert can be lethal for a wader. Always check the current level against the thresholds above and the safety links, and when in doubt, stay off the water.

Can I get alerts when Issaquah Creek Near Hobart rises?

Yes — flow alerts are managed in the Snoflo iOS app. Favorite this gauge, set a streamflow threshold (e.g. "alert me when discharge crosses 5,000 cfs"), and you'll get a push the moment USGS reports the crossing.