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| Critical Stages |
| 10.7' -Action |
13' -Flood |
14' -Moderate Flood |
15' -Major Flood |
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| Forecast not available for this location. |
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| Observation history unavailable for thie location. |
| Flood Impacts |
| 15.0 | the North Fork Stillaguamish River will cause extensive flooding from near Darrington downstream to the confluence with the South Fork Stillaguamish River...including Oso...Cicero...Swede Heaven and SR 530. Flood waters will also cause riverbank erosion. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the N Fork Stillaguamish River Basin. A stage of 15 feet corresponds to Phase 4 in the Snohomish County Flood Warning System. |
| 14.0 | the North Fork Stillaguamish River will cause flooding in the Cicero and Swede Heaven areas...Oso Loop Road...and SR 530. Flood waters will also cause riverbank erosion. A stage of 14 feet corresponds to Phase 3 in the Snohomish County Flood Warning Ssystem. |
| 13.0 | the North Fork Stillaguamish River will cause flooding of Oso Loop Road and cause minor riverbank erosion. A stage of 13 feet corresponds to Phase 2 in the Snohomish County Flood Warning System. |
| Historical Crests |
Low Water Records |
1) 15.20 ft on 11/24/1990
2) 14.84 ft on 02/08/1996
3) 14.81 ft on 03/19/1997
3) 14.81 ft on 10/21/2003
5) 14.75 ft on 11/09/1990
6) 14.66 ft on 11/29/1995
7) 14.62 ft on 02/22/2002
8) 14.51 ft on 11/06/2006
9) 14.50 ft on 11/25/2004
10) 14.38 ft on 02/19/1995
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1) 0.00 ft on 09/23/1938
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Data provided by NOAA Advanced Hydrologic Prediction Service
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