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Snoqualmie River at Snoqualmie Falls

Critical Stages
Action
Flood
Moderate
Major

Latest Observation

Updated: 11:30 PM PST 12/7/25

Status: No Flooding

Stage: 6.88 ft

Flow: 8.5 kcfs

Forecast

TimeStage (ft)Flow (kcfs)
4 AM 12/8 6.02832 8.1
10 AM 12/8 6.02196 8.1
4 PM 12/8 14.3306 11.7
10 PM 12/8 29.58464 16
4 AM 12/9 47.42128 18.1
10 AM 12/9 36.96356 17
4 PM 12/9 14.30582 11.7
10 PM 12/9 13.38162 11.4
4 AM 12/10 21.9365 14.1
10 AM 12/10 35.98396 16.9
4 PM 12/10 39.56775 17.3
10 PM 12/10 41.26669 17.5
4 AM 12/11 36.87121 17
10 AM 12/11 31.99357 16.4
4 PM 12/11 23.54139 14.5
10 PM 12/11 16.62293 12.5
4 AM 12/12 13.35425 11.3
10 AM 12/12 11.33658 10.6
4 PM 12/12 9.90477 10
10 PM 12/12 8.83473 9.5
4 AM 12/13 7.86168 9
10 AM 12/13 6.94366 8.6
4 PM 12/13 6.47035 8.3
10 PM 12/13 6.7556 8.5
4 AM 12/14 7.38075 8.8
10 AM 12/14 7.51607 8.9
4 PM 12/14 7.02115 8.6
10 PM 12/14 6.45125 8.3
4 AM 12/15 6.06884 8.1
10 AM 12/15 5.86366 8
4 PM 12/15 5.9187 8
10 PM 12/15 6.78396 8.5
4 AM 12/16 8.07454 9.1
10 AM 12/16 9.23641 9.7
4 PM 12/16 10.40976 10.2
10 PM 12/16 13.11369 11.3
4 AM 12/17 14.63844 11.8
TimeStage (ft)Flow (kcfs)
12:30 AM 12/8 6.67 8.4
12:15 AM 12/8 6.73 8.5
12:00 AM 12/8 6.75 8.5
11:45 PM 12/7 6.8 8.5
11:30 PM 12/7 6.88 8.5
11:15 PM 12/7 6.92 8.6
11:00 PM 12/7 6.88 8.5
10:45 PM 12/7 6.92 8.6
10:30 PM 12/7 6.98 8.6
10:15 PM 12/7 7 8.6
10:00 PM 12/7 7.02 8.6
9:45 PM 12/7 7.03 8.6
9:30 PM 12/7 7.09 8.7
9:15 PM 12/7 7.15 8.7
9:00 PM 12/7 7.11 8.7
8:45 PM 12/7 7.13 8.7
8:30 PM 12/7 7.09 8.7
8:15 PM 12/7 7 8.6
8:00 PM 12/7 6.9 8.6
7:45 PM 12/7 6.88 8.5
7:30 PM 12/7 6.75 8.5
7:15 PM 12/7 6.65 8.4
7:00 PM 12/7 6.6 8.4
6:45 PM 12/7 6.41 8.3
6:30 PM 12/7 6.25 8.2
6:15 PM 12/7 6.1 8.1
6:00 PM 12/7 5.94 8
5:45 PM 12/7 5.73 7.9
5:30 PM 12/7 5.54 7.8
5:15 PM 12/7 5.34 7.7
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.