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Johnson Creek near Sycamore
Critical Stages
10' - Action
11' - Flood
13' - Moderate
14' - Major
Latest Observation
Updated: 2:30 PM PST 12/15/25
Status: No Flooding
Stage: 3.85 ft
Flow: 0.161 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 4 PM 12/15 | 3.84 | 0.16 |
| 10 PM 12/15 | 4.01 | 0.176 |
| 4 AM 12/16 | 4.22 | 0.198 |
| 10 AM 12/16 | 4.25 | 0.201 |
| 4 PM 12/16 | 4.05 | 0.18 |
| 10 PM 12/16 | 4.17 | 0.193 |
| 4 AM 12/17 | 4.92 | 0.276 |
| 10 AM 12/17 | 5.38 | 0.332 |
| 4 PM 12/17 | 5.39 | 0.333 |
| 10 PM 12/17 | 5.17 | 0.306 |
| 4 AM 12/18 | 4.86 | 0.269 |
| 10 AM 12/18 | 5.15 | 0.303 |
| 4 PM 12/18 | 10.73 | 1.2 |
| 10 PM 12/18 | 12.81 | 1.69 |
| 4 AM 12/19 | 11.72 | 1.41 |
| 10 AM 12/19 | 9.73 | 1.01 |
| 4 PM 12/19 | 8.21 | 0.739 |
| 10 PM 12/19 | 7.02 | 0.553 |
| 4 AM 12/20 | 6.06 | 0.419 |
| 10 AM 12/20 | 5.38 | 0.332 |
| 4 PM 12/20 | 4.96 | 0.28 |
| 10 PM 12/20 | 4.64 | 0.243 |
| 4 AM 12/21 | 4.37 | 0.214 |
| 10 AM 12/21 | 4.15 | 0.191 |
| 4 PM 12/21 | 4.03 | 0.178 |
| 10 PM 12/21 | 4.06 | 0.181 |
| 4 AM 12/22 | 4.18 | 0.194 |
| 10 AM 12/22 | 4.37 | 0.214 |
| 4 PM 12/22 | 4.58 | 0.237 |
| 10 PM 12/22 | 4.69 | 0.249 |
| 4 AM 12/23 | 4.68 | 0.248 |
| 10 AM 12/23 | 4.56 | 0.234 |
| 4 PM 12/23 | 4.41 | 0.218 |
| 10 PM 12/23 | 4.26 | 0.202 |
| 4 AM 12/24 | 4.12 | 0.187 |
| 10 AM 12/24 | 3.99 | 0.174 |
| 4 PM 12/24 | 3.89 | 0.165 |
| 10 PM 12/24 | 3.81 | 0.157 |
| 4 AM 12/25 | 3.82 | 0.158 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 2:30 PM 12/15 | 3.85 | 0.161 |
| 2:15 PM 12/15 | 3.86 | 0.162 |
| 2:00 PM 12/15 | 3.86 | 0.162 |
| 1:45 PM 12/15 | 3.85 | 0.161 |
| 1:30 PM 12/15 | 3.85 | 0.161 |
| 1:15 PM 12/15 | 3.86 | 0.162 |
| 1:00 PM 12/15 | 3.85 | 0.161 |
| 12:45 PM 12/15 | 3.86 | 0.162 |
| 10:30 AM 12/15 | 3.91 | 0.166 |
| 10:15 AM 12/15 | 3.92 | 0.167 |
| 10:00 AM 12/15 | 3.91 | 0.166 |
| 9:45 AM 12/15 | 3.9 | 0.166 |
| 8:30 AM 12/15 | 3.8 | 0.156 |
| 8:15 AM 12/15 | 3.8 | 0.156 |
| 8:00 AM 12/15 | 3.8 | 0.156 |
| 7:45 AM 12/15 | 3.8 | 0.156 |
| 7:30 AM 12/15 | 3.79 | 0.155 |
| 7:15 AM 12/15 | 3.77 | 0.153 |
| 7:00 AM 12/15 | 3.73 | 0.149 |
| 6:45 AM 12/15 | 3.7 | 0.146 |
| 6:30 AM 12/15 | 3.62 | 0.139 |
| 6:15 AM 12/15 | 3.54 | 0.132 |
| 6:00 AM 12/15 | 3.45 | 0.124 |
| 5:45 AM 12/15 | 3.38 | 0.118 |
| 4:30 AM 12/15 | 3.11 | 0.095 |
| 4:15 AM 12/15 | 3.05 | 0.091 |
| 4:00 AM 12/15 | 2.98 | 0.085 |
| 3:45 AM 12/15 | 2.92 | 0.081 |
| 3:30 AM 12/15 | 2.86 | 0.076 |
| 3:15 AM 12/15 | 2.77 | 0.07 |
14' -
expect widespread flooding of residential and commercial areas along Johnson Creek.
13' -
expect flooding to begin at numerous locations along Johnson Creek. Evacuations of several homes have historically taken place at this and higher stages.
11' -
minor flooding begins along Johnson Creek between SE 92nd Street to SE 122nd Street and between Johnson Creek and SE Harold Street.
| Date | Stage (ft) |
|---|---|
| Dec 7, 2015 | 15.33 |
| Nov 19, 1996 | 15.3 |
| Jan 2, 2009 | 14.69 |
| Dec 22, 1964 | 14.68 |
| Dec 1, 1937 | 14.5 |
| Feb 7, 1996 | 14.28 |
| Feb 8, 1996 | 14.08 |
| Jan 12, 1980 | 14.03 |
| Nov 11, 1995 | 14 |
| Dec 13, 1977 | 13.89 |
| Nov 24, 1960 | 13.78 |
| Feb 10, 1949 | 13.77 |
| Feb 20, 1982 | 13.66 |
| Feb 1, 2003 | 13.24 |
| Jan 4, 1956 | 13.23 |
| Feb 24, 1994 | 13.21 |
| Jan 19, 2012 | 13.21 |
| Jan 7, 1948 | 13.06 |
| Jan 15, 1974 | 12.72 |
| Jan 21, 1972 | 12.7 |
Data provided by the National Weather Service.
