Guadalupe River (CA) above Hwy 101 at San Jose
Critical Stages
17' - Action
19' - Flood
20' - Moderate
21' - Major
Latest Observation
Updated: 8:45 PM PST 12/17/25
Status: No Flooding
Stage: 5.22 ft
Flow: 0.032 kcfs
Forecast
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 10 PM 12/17 | 5.2 | 0.03 |
| 11 PM 12/17 | 5.2 | 0.03 |
| 12 AM 12/18 | 5.19 | 0.03 |
| 1 AM 12/18 | 5.19 | 0.03 |
| 2 AM 12/18 | 5.19 | 0.03 |
| 3 AM 12/18 | 5.19 | 0.03 |
| 4 AM 12/18 | 5.18 | 0.029 |
| 5 AM 12/18 | 5.18 | 0.029 |
| 6 AM 12/18 | 5.18 | 0.029 |
| 7 AM 12/18 | 5.18 | 0.029 |
| 8 AM 12/18 | 5.18 | 0.029 |
| 9 AM 12/18 | 5.17 | 0.028 |
| 10 AM 12/18 | 5.17 | 0.028 |
| 11 AM 12/18 | 5.17 | 0.028 |
| 12 PM 12/18 | 5.17 | 0.028 |
| 1 PM 12/18 | 5.17 | 0.028 |
| 2 PM 12/18 | 5.17 | 0.028 |
| 3 PM 12/18 | 5.16 | 0.027 |
| 4 PM 12/18 | 5.16 | 0.027 |
| 5 PM 12/18 | 5.16 | 0.027 |
| 6 PM 12/18 | 5.16 | 0.027 |
| 7 PM 12/18 | 5.16 | 0.027 |
| 8 PM 12/18 | 5.15 | 0.027 |
| 9 PM 12/18 | 5.15 | 0.027 |
| 10 PM 12/18 | 5.15 | 0.027 |
| 11 PM 12/18 | 5.15 | 0.027 |
| 12 AM 12/19 | 5.14 | 0.026 |
| 1 AM 12/19 | 5.14 | 0.026 |
| 2 AM 12/19 | 5.14 | 0.026 |
| 3 AM 12/19 | 5.14 | 0.026 |
| 4 AM 12/19 | 5.14 | 0.026 |
| 5 AM 12/19 | 5.13 | 0.025 |
| 6 AM 12/19 | 5.13 | 0.025 |
| 7 AM 12/19 | 5.13 | 0.025 |
| 8 AM 12/19 | 5.13 | 0.025 |
| 9 AM 12/19 | 5.12 | 0.025 |
| 10 AM 12/19 | 5.12 | 0.025 |
| 11 AM 12/19 | 5.12 | 0.025 |
| 12 PM 12/19 | 5.12 | 0.025 |
| 1 PM 12/19 | 5.12 | 0.025 |
| 2 PM 12/19 | 5.12 | 0.025 |
| 3 PM 12/19 | 5.13 | 0.025 |
| 4 PM 12/19 | 5.16 | 0.027 |
| 5 PM 12/19 | 5.21 | 0.031 |
| 6 PM 12/19 | 5.27 | 0.036 |
| 7 PM 12/19 | 5.34 | 0.042 |
| 8 PM 12/19 | 5.43 | 0.049 |
| 9 PM 12/19 | 5.55 | 0.061 |
| 10 PM 12/19 | 5.68 | 0.074 |
| 11 PM 12/19 | 5.79 | 0.087 |
| 12 AM 12/20 | 5.88 | 0.098 |
| 1 AM 12/20 | 5.93 | 0.104 |
| 2 AM 12/20 | 5.94 | 0.105 |
| 3 AM 12/20 | 5.89 | 0.099 |
| 4 AM 12/20 | 5.8 | 0.088 |
| 5 AM 12/20 | 5.7 | 0.077 |
| 6 AM 12/20 | 5.61 | 0.067 |
| 7 AM 12/20 | 5.53 | 0.059 |
| 8 AM 12/20 | 5.47 | 0.053 |
| 9 AM 12/20 | 5.41 | 0.048 |
| 10 AM 12/20 | 5.34 | 0.042 |
| 11 AM 12/20 | 5.27 | 0.036 |
| 12 PM 12/20 | 5.2 | 0.03 |
| 1 PM 12/20 | 5.16 | 0.027 |
| 2 PM 12/20 | 5.19 | 0.03 |
| 3 PM 12/20 | 5.31 | 0.039 |
| 4 PM 12/20 | 5.49 | 0.055 |
| 5 PM 12/20 | 5.65 | 0.071 |
| 6 PM 12/20 | 5.78 | 0.086 |
| 7 PM 12/20 | 5.87 | 0.096 |
| 8 PM 12/20 | 5.93 | 0.104 |
| 9 PM 12/20 | 6 | 0.113 |
| 10 PM 12/20 | 6.05 | 0.12 |
| 11 PM 12/20 | 6.1 | 0.126 |
| 12 AM 12/21 | 6.14 | 0.132 |
| 1 AM 12/21 | 6.17 | 0.136 |
| 2 AM 12/21 | 6.21 | 0.142 |
| 3 AM 12/21 | 6.27 | 0.151 |
| 4 AM 12/21 | 6.36 | 0.165 |
| 5 AM 12/21 | 6.44 | 0.178 |
| 6 AM 12/21 | 6.51 | 0.189 |
| 7 AM 12/21 | 6.55 | 0.196 |
| 8 AM 12/21 | 6.6 | 0.205 |
| 9 AM 12/21 | 6.65 | 0.214 |
| 10 AM 12/21 | 6.72 | 0.227 |
| 11 AM 12/21 | 6.78 | 0.238 |
| 12 PM 12/21 | 6.82 | 0.246 |
| 1 PM 12/21 | 6.86 | 0.254 |
| 2 PM 12/21 | 6.9 | 0.262 |
| 3 PM 12/21 | 6.95 | 0.272 |
| 4 PM 12/21 | 7.01 | 0.285 |
| 5 PM 12/21 | 7.06 | 0.296 |
| 6 PM 12/21 | 7.1 | 0.305 |
| 7 PM 12/21 | 7.13 | 0.311 |
| 8 PM 12/21 | 7.15 | 0.316 |
| 9 PM 12/21 | 7.18 | 0.322 |
| 10 PM 12/21 | 7.21 | 0.329 |
| 11 PM 12/21 | 7.24 | 0.336 |
| 12 AM 12/22 | 7.25 | 0.338 |
| 1 AM 12/22 | 7.28 | 0.345 |
| 2 AM 12/22 | 7.33 | 0.357 |
| 3 AM 12/22 | 7.41 | 0.376 |
| 4 AM 12/22 | 7.49 | 0.396 |
| Time | Stage (ft) | Flow (kcfs) |
|---|---|---|
| 9:00 PM 12/17 | 5.22 | 0.032 |
| 8:45 PM 12/17 | 5.22 | 0.032 |
| 8:30 PM 12/17 | 5.22 | 0.032 |
| 8:15 PM 12/17 | 5.22 | 0.032 |
| 8:00 PM 12/17 | 5.22 | 0.032 |
| 7:45 PM 12/17 | 5.22 | 0.032 |
| 7:30 PM 12/17 | 5.23 | 0.033 |
| 7:15 PM 12/17 | 5.23 | 0.033 |
| 7:00 PM 12/17 | 5.22 | 0.032 |
| 6:45 PM 12/17 | 5.22 | 0.032 |
| 6:30 PM 12/17 | 5.22 | 0.032 |
| 6:15 PM 12/17 | 5.22 | 0.032 |
| 6:00 PM 12/17 | 5.22 | 0.032 |
| 5:45 PM 12/17 | 5.23 | 0.033 |
| 5:30 PM 12/17 | 5.22 | 0.032 |
| 5:15 PM 12/17 | 5.23 | 0.033 |
| 5:00 PM 12/17 | 5.23 | 0.033 |
| 4:45 PM 12/17 | 5.23 | 0.033 |
| 4:30 PM 12/17 | 5.23 | 0.033 |
| 4:15 PM 12/17 | 5.22 | 0.032 |
| 4:00 PM 12/17 | 5.23 | 0.033 |
| 3:45 PM 12/17 | 5.23 | 0.033 |
| 3:30 PM 12/17 | 5.23 | 0.033 |
| 3:15 PM 12/17 | 5.22 | 0.032 |
| 3:00 PM 12/17 | 5.22 | 0.032 |
| 2:45 PM 12/17 | 5.22 | 0.032 |
| 2:30 PM 12/17 | 5.23 | 0.033 |
| 2:15 PM 12/17 | 5.23 | 0.033 |
| 2:00 PM 12/17 | 5.23 | 0.033 |
| 1:45 PM 12/17 | 5.22 | 0.032 |
21' -
Major Flooding: Levee overtopping, with failures likely along both sides of the river between US-101 and Trimble flowing in a northerly direction.
20' -
Moderate Flooding: Levee overtopping imminent. Highest risk areas are between US-101 and Trimble.
19' -
Minor Flooding: High flows with heavy debris might cause localized blockages to cause overtopping of levees.
17' -
Action Stage: 7256 cfs
Historical crest information is not available.
Data provided by the National Weather Service.