Cascade River at Marblemount, WA
Skagit County, Washington · USGS 12182500
Latest observation
What this gauge represents: This gauge measures conditions on Cascade River at its USGS monitoring location in Skagit County; conditions elsewhere on the waterway may differ.
Observed · 1 hour ago
Observed
Observed
How to read these numbers
How much water moves past the gauge each second. Higher numbers mean more water is moving downstream.
The water-surface height at this gauge. It is useful for tracking rises, falls and flood thresholds, but it is not the river's total depth.
How much the latest reading has risen or fallen compared with roughly 24 hours earlier.
The typical streamflow for this date based on USGS historical statistics. A multiple such as 3× means current flow is about three times the historical median.
Get Water Data's plain-language summary of current flow, historical context and recent direction.
Official action and flood thresholds where available. These levels are specific to each gauge location.
Gauge height and flood stage are station-specific. A 12-foot reading at one gauge should not be directly compared with 12 feet at another.
Below historical median · Falling
Streamflow is currently 352 ft³/s, 27% below the historical median for this date. Flow has fallen 93 CFS over the past 24 hours.
USGS-reported historical daily median for 09-27: 480 ft³/s · Based on USGS day-of-year statistics
How trends & context are calculated →Streamflow trend
Daily mean streamflow · Aug 28–Sep 25 · dates shown in UTC · 29 observations
Look at the data (29 rows)
| Date (UTC) | Daily mean |
|---|---|
| Aug 28, 2026, 12:00 AM | 306 CFS |
| Aug 29, 2026, 12:00 AM | 467 CFS |
| Aug 30, 2026, 12:00 AM | 412 CFS |
| Aug 31, 2026, 12:00 AM | 310 CFS |
| Sep 1, 2026, 12:00 AM | 305 CFS |
| Sep 2, 2026, 12:00 AM | 303 CFS |
| Sep 3, 2026, 12:00 AM | 358 CFS |
| Sep 4, 2026, 12:00 AM | 309 CFS |
| Sep 5, 2026, 12:00 AM | 283 CFS |
| Sep 6, 2026, 12:00 AM | 258 CFS |
| Sep 7, 2026, 12:00 AM | 254 CFS |
| Sep 8, 2026, 12:00 AM | 237 CFS |
| Sep 9, 2026, 12:00 AM | 237 CFS |
| Sep 10, 2026, 12:00 AM | 255 CFS |
| Sep 11, 2026, 12:00 AM | 253 CFS |
| Sep 12, 2026, 12:00 AM | 224 CFS |
| Sep 13, 2026, 12:00 AM | 260 CFS |
| Sep 14, 2026, 12:00 AM | 289 CFS |
| Sep 15, 2026, 12:00 AM | 245 CFS |
| Sep 16, 2026, 12:00 AM | 225 CFS |
| Sep 17, 2026, 12:00 AM | 222 CFS |
| Sep 18, 2026, 12:00 AM | 218 CFS |
| Sep 19, 2026, 12:00 AM | 217 CFS |
| Sep 20, 2026, 12:00 AM | 216 CFS |
| Sep 21, 2026, 12:00 AM | 215 CFS |
| Sep 22, 2026, 12:00 AM | 216 CFS |
| Sep 23, 2026, 12:00 AM | 201 CFS |
| Sep 24, 2026, 12:00 AM | 190 CFS |
| Sep 25, 2026, 12:00 AM | 277 CFS |
About this gauge
Official USGS station
Get Water Data organizes provisional public monitoring data from the U.S. Geological Survey.
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