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Snoqualmie River at Snoqualmie Falls

Critical Stages
Action
Flood
Moderate
Major

Latest Observation

Updated: 3:00 PM PST 12/10/25

Status: Major

Stage: 64.4 ft

Flow: 19.5 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
10 PM 12/10 60.66989 19.2
4 AM 12/11 59.23779 19.1
10 AM 12/11 77.5884 -999
4 PM 12/11 39.18655 17.2
10 PM 12/11 19.27562 13.3
4 AM 12/12 14.20889 11.7
10 AM 12/12 11.56775 10.7
4 PM 12/12 9.74506 9.9
10 PM 12/12 8.31879 9.3
4 AM 12/13 7.12322 8.7
10 AM 12/13 6.13185 8.1
4 PM 12/13 5.36352 7.7
10 PM 12/13 4.75998 7.3
4 AM 12/14 4.35754 7.1
10 AM 12/14 4.31196 7
4 PM 12/14 4.43228 7.1
10 PM 12/14 4.50913 7.2
4 AM 12/15 4.80771 7.4
10 AM 12/15 7.04921 8.6
4 PM 12/15 11.70364 10.7
10 PM 12/15 15.24242 12
4 AM 12/16 14.48489 11.8
10 AM 12/16 12.04935 10.9
4 PM 12/16 10.67692 10.3
10 PM 12/16 10.94518 10.4
4 AM 12/17 11.7432 10.7
10 AM 12/17 11.63418 10.7
4 PM 12/17 11.0559 10.5
10 PM 12/17 10.5852 10.3
4 AM 12/18 10.77375 10.3
10 AM 12/18 11.74911 10.7
4 PM 12/18 13.13023 11.3
10 PM 12/18 16.19159 12.3
4 AM 12/19 20.13463 13.6
10 AM 12/19 20.00498 13.5
4 PM 12/19 18.575 13.1
10 PM 12/19 18.0905 13
4 AM 12/20 18.62041 13.1
TimeStage (ft)Flow (kcfs)
3:00 PM 12/10 64.4 19.5
2:45 PM 12/10 62.3 19.4
2:30 PM 12/10 65.4 19.6
2:15 PM 12/10 63.2 19.4
2:00 PM 12/10 62.8 19.4
1:45 PM 12/10 59.7 19.2
1:30 PM 12/10 59.3 19.1
1:15 PM 12/10 59 19.1
1:00 PM 12/10 56.2 18.9
12:45 PM 12/10 55 18.8
12:30 PM 12/10 52.8 18.6
12:15 PM 12/10 48.6 18.2
12:00 PM 12/10 45.9 17.9
11:45 AM 12/10 47.2 18.1
11:30 AM 12/10 44 17.7
11:15 AM 12/10 41.1 17.4
11:00 AM 12/10 41.1 17.4
10:45 AM 12/10 37.5 17
10:30 AM 12/10 37.1 17
10:15 AM 12/10 35.6 16.8
10:00 AM 12/10 34.6 16.7
9:45 AM 12/10 34.5 16.7
9:30 AM 12/10 33.2 16.5
9:15 AM 12/10 30.8 16.2
9:00 AM 12/10 29.9 16
8:45 AM 12/10 29.2 15.9
8:30 AM 12/10 28.4 15.8
8:15 AM 12/10 28.4 15.8
8:00 AM 12/10 27.2 15.5
7:45 AM 12/10 25.5 15.1
Hydrograph for Snoqualmie River at Snoqualmie Falls
70000' - the Snoqualmie River will cause severe near record flooding from the town of Snoqualmie downstream through Fall City. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds to a phase 4 flood in the King County flood system.
55000' - the Snoqualmie River will cause major flooding from the town of Snoqualmie downstream through Fall City...inundating most of the farm land in the flood plain...some residential areas...and many roads. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds roughly to a phase 4 flood in the King County flood system.
41000' - the Snoqualmie River will cause major flooding from the town of Snoqualmie downstream through Fall City...inundating most of the farm land in the flood plain...some residential areas...and many roads. Flood waters will be deep and swift in some areas. Flooding will occur all along the river including headwaters...tributaries...and other streams within and near the Snoqualmie River Basin. This river level on the Snoqualmie corresponds roughly to a phase 4 flood in the King County flood system.
30000' - the Snoqualmie River will cause widespread flooding of pasture lands and roads along the river from the town of Snoqualmie downstream through Fall City. Roads that may become flooded include Fall City-Carnation...Tolt Hill...and Novelty Flats Roads. This river level on the Snoqualmie corresponds roughly to a phase 3 flood in the King County flood system.
20000' - the Snoqualmie River will cause widespread flooding of pasture lands and roads along the river from the town of Snoqualmie downstream through Fall City. Roads that may become flooded include Fall City-Carnation...Tolt Hill...and Novelty Flats Roads. This river level on the Snoqualmie corresponds roughly to a phase 3 flood in the King County flood system.
12000' - the Snoqualmie River will spill over its banks between the town of Snoqualmie and Fall City...covering pasture lands and several roads along the river. This river level on the Snoqualmie corresponds roughly to a phase 2 flood in the King County flood system.
DateStage (ft)
Nov 24, 1990 21.55
Jan 7, 2009 20.97
Nov 7, 2006 20.31
Nov 23, 1959 19.78
Nov 24, 1986 19.35
Dec 2, 1977 18.88
Jan 5, 2015 18.62
Dec 3, 1975 18.57
Dec 9, 2015 18.53
Feb 9, 1996 18.52
Nov 17, 2015 18.31
Jan 18, 1975 18.04
Nov 9, 1989 17.55
Nov 20, 1962 17.35
Jan 18, 2005 17.33
Dec 26, 1980 17.26
Jan 5, 1969 17.1
Jan 16, 2011 17.08
Oct 16, 1988 17.03
Jan 25, 1984 16.97

Data provided by the National Weather Service.