Lower Ketchikan Lake above Ketchikan Lake Dam near Ketchikan
Future / Actual / Minor
OWP 2.0 WWA Modal Title
01/11/2021, 10:04 PM UTC through 01/11/2021, 10:04 PM UTC
Sender
Sent
- Upstream gauge unavailableWarning: no valid ratings curve available. Transformations to and from FEET/CFS/KCFS will not happen.
Traces and Thresholds Click to turn on/off display
CATEGORY STAGE Major Flooding 354 ft Moderate Flooding 350 ft Minor Flooding 349 ft Action 348 ft Reliability of the Forecast:
NOTE: Forecasts are not available. Only observed stages are available for this point.
National Water Model Hydrograph
Official NWS streamflow forecasts are produced by NWS hydrologic forecasters for river gauge locations using hydrologic models which are calibrated to that location. This process considers additional guidance and information, including local expertise and experience, to produce the best forecast possible. The NWM output provides supplemental guidance to NWS forecasters and should not be considered an official NWS river forecast.
Flood Impacts
- 354 - This level would produce major damage downstream along Ketchikan creek and surrounding areas.
- 350.2 - This is moderate flood stage with significant flooding along Ketchikan Creek. Yards and homes will be flooded along with potential damage to bridges from debris flowing downstream. Water will be over knee deep along Freeman St. Flooding could be worse during high tide along Creek St.
- 349.9 - Minor flooding along Ketchikan Creek with flooding of yards and some roads above and below Park Ave bridge. Flooding could be worse due to high tide along Creek St.
Gauge Info
| Coordinates | 55.3600, -131.622 |
| RFC | APRFC |
| State | AK |
| WFO | AJK |
| County | Ketchikan Gateway |
| Data Provider(s) | |
| Ketchikan Public Utilities | Lower Ketchikan Lake |
Gauge Location
Recent Crests
| 1. | 348.50 ft | on 12-06-2024 | (P) |
| 2. | 347.24 ft | on 02-12-2023 | (P) |
| 3. | 344.66 ft | on 07-19-2022 | (P) |
| 4. | 348.14 ft | on 06-05-2021 | (P) |
| 5. | 350.10 ft | on 12-05-2020 | (P) |
Recent Crests
| 1. | 348.50 ft | on 12-06-2024 | (P) |
| 2. | 347.24 ft | on 02-12-2023 | (P) |
| 3. | 344.66 ft | on 07-19-2022 | (P) |
| 4. | 348.14 ft | on 06-05-2021 | (P) |
| 5. | 350.10 ft | on 12-05-2020 | (P) |
| 6. | 349.18 ft | on 12-02-2020 | (P) |
| 7. | 346.57 ft | on 12-17-2017 | (P) |
| 8. | 348.71 ft | on 08-28-2017 | (P) |
| 9. | 348.28 ft | on 02-26-2016 | (P) |
| 10. | 350.20 ft | on 01-21-2015 | |
| 11. | 349.30 ft | on 12-14-2013 | (P) |
Historic Crests
| 1. | 350.20 ft | on 01-21-2015 | |
| 2. | 350.10 ft | on 12-05-2020 | (P) |
| 3. | 349.30 ft | on 12-14-2013 | (P) |
| 4. | 349.18 ft | on 12-02-2020 | (P) |
| 5. | 348.71 ft | on 08-28-2017 | (P) |
Historic Crests
| 1. | 350.20 ft | on 01-21-2015 | |
| 2. | 350.10 ft | on 12-05-2020 | (P) |
| 3. | 349.30 ft | on 12-14-2013 | (P) |
| 4. | 349.18 ft | on 12-02-2020 | (P) |
| 5. | 348.71 ft | on 08-28-2017 | (P) |
| 6. | 348.50 ft | on 12-06-2024 | (P) |
| 7. | 348.28 ft | on 02-26-2016 | (P) |
| 8. | 348.14 ft | on 06-05-2021 | (P) |
| 9. | 347.24 ft | on 02-12-2023 | (P) |
| 10. | 346.57 ft | on 12-17-2017 | (P) |
| 11. | 344.66 ft | on 07-19-2022 | (P) |
Vertical Datum Table
| type | STND |
|---|---|
| major Flooding | 354.00 ft |
| moderate Flooding | 350.00 ft |
| minor Flooding | 349.00 ft |
| action | 348.00 ft |
| Latest Value | 339.17 ft |
| Gauge Zero | 0.00 ft |
Probability Information
No Images Available
Unique Local Info
Collaborative Agencies
The National Weather Service prepares its forecasts and other services in collaboration with agencies like the US Geological Survey, US Bureau of Reclamation, US Army Corps of Engineers, Natural Resource Conservation Service, National Park Service, ALERT Users Group, Bureau of Indian Affairs, and many state and local emergency managers across the country. For details, please click here.