Cowlitz River Near Kosmos flow report
As of July 14, 2026, Cowlitz River Near Kosmos is flowing at 2,220 cfs, holding steady over the past 24 hours. Source: USGS gauge #14233500, refreshed throughout the day.
Historical Data
Cowlitz River Near Kosmos at a glance
How Cowlitz River Near Kosmos is running right now, where it sits on the map, and the key gauge stats.
Cowlitz River Near Kosmos is flowing at 2,220 cfs, with the water sitting ft at the gage. Flow has held roughly steady over the past 24 hours.
This is USGS gauge #14233500 in Washington. Over the past 10 days the average has been 2,163 cfs, peaking at 2,310 cfs.
For real-time updates and historical context, see the realtime view or the historical comparison. Browse other gauges in the Washington flow report.
Streamflow Forecast
Over the next 5 days, Cowlitz River Near Kosmos is expected to recede from today's 2250 cfs, toward roughly 2004 cfs by 2026-07-18 (likely range 1535-2615 cfs) -- running well below the seasonal normal.
Powered by PULSE — Snoflo’s forecast engine, trained on this gauge’s full record of storms, snowmelt, and dry spells.
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.
Weather Forecast
Next 5 days, hour by hour
Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.
5-day forecast table
Every 3 hours, broken out across temperature, snow, rain, humidity, and wind.
| Time | Condition | Temp (°F) | Snow (in) | Rain (in) | Humidity (%) | Wind (mps) | Wind dir |
|---|---|---|---|---|---|---|---|
| Loading detailed forecast… | |||||||
15-day forecast
Daily temperatures, snow, and rain projected over the next two weeks.
Cowlitz River Near Kosmos
The river is fed by several tributaries, including the Tilton River and Cispus River. Seasonally, the highest flows occur in the spring months due to snowmelt, with lower flows in the summer and fall. Interestingly, the Cowlitz River is known for its steelhead and salmon fisheries and supports a significant portion of the state's anadromous fish populations. The river also serves as a source of hydroelectric power, with several dams along its length.
Nearby streamflow levels
Cross-check Cowlitz River Near Kosmos's discharge against nearby gauges to spot whether the change here is local or regional.
| Gauge | Streamflow |
|---|---|
| Cowlitz River Near Kosmos | 2,220 cfs |
| Cowlitz River At Randle | 1,090 cfs |
| Cispus River Ab Yellowjacket Creek Near Randle | 401 cfs |
| Tilton River Ab Bear Canyon Creek Near Cinebar | 96 cfs |
| Mineral Creek Near Mineral | 41 cfs |
| Nisqually River Near National | 424 cfs |
Nearby snowpack data
Snowpack at SNOTEL stations near Cowlitz River Near Kosmos. Spring snowmelt is the dominant driver of streamflow in mountain basins -- a deep snowpack upstream means more runoff later in the season.
| SNOTEL station | Snowpack |
|---|---|
| Nohrsc Pinto Rock | 0 in |
| Pinto Rock | 0 in |
| Spirit Lake Tunnel Outlet On S Coldwater Crk | — |
| Spirit Lake | 0 in |
| Lone Pine | 1 in |
| Nohrsc Lone Pine | 0 in |
Plan a trip
Reservoirs, boat launches, river runs, and fishing spots within driving distance of Cowlitz River Near Kosmos.
Nearby reservoirs
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Boat launches
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River runs
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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 Cowlitz River Near Kosmos in the Snoflo app
Save this gauge as a favorite, set push alerts when streamflow crosses a threshold (e.g. "alert me when Cowlitz River Near Kosmos crosses 5,000 cfs"), and Snoflo's iOS app will push the moment USGS reports the crossing.
About Cowlitz River Near Kosmos
Where does the streamflow data for Cowlitz River Near Kosmos come from?
Discharge, gage height, and water temperature come directly from the USGS streamflow gauge 14233500. 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 Cowlitz River Near Kosmos 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.
Access the free Cowlitz River Near Kosmos report
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