Tazlina River near Glennallen
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 unavailableDownstream 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
Observed (OBS) 06/25/2025 12:00 PM AKDTOfficial Forecast (FCST) 06/24/2025 3:36 PM AKDTRecord: 36.3 ftCATEGORY STAGE 
Major Flooding 36 ft Moderate Flooding 32 ft Minor Flooding 31 ft Action 28.5 ft Reliability of the Forecast:
NOTE: Forecasts are issued routinely during the warm season, and as needed at other times of the year.
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
- 42.8 - Bridge Low Cord
- 34.5 - Water will be at the top of the riprap on the right bank just downstream of the Richardson Highway Bridge.
- 31 - Minor flood stage; confirmed in a site visit on August 9, 2004.
Gauge Info
| Coordinates | 62.0547, -145.428 |
| RFC | APRFC |
| State | AK |
| WFO | AFC |
| County | Copper River |
| Data Provider(s) | |
| US Geological Survey | USGS 15202000 |
Gauge Location
Recent Crests
| 1. | 28.42 ft | on 07-30-2021 | |
| 2. | 28.46 ft | on 07-28-2017 | (P) |
| 3. | 29.30 ft | on 07-27-2016 | (P) |
| 4. | 27.84 ft | on 08-24-2015 | (P) |
| 5. | 29.08 ft | on 09-23-2014 | (P) |
Recent Crests
| 1. | 28.42 ft | on 07-30-2021 | |
| 2. | 28.46 ft | on 07-28-2017 | (P) |
| 3. | 29.30 ft | on 07-27-2016 | (P) |
| 4. | 27.84 ft | on 08-24-2015 | (P) |
| 5. | 29.08 ft | on 09-23-2014 | (P) |
| 6. | 27.99 ft | on 08-12-2010 | |
| 7. | 41.77 ft | on 05-31-2008 | |
| 8. | 30.45 ft | on 09-11-2005 | |
| 9. | 32.70 ft | on 08-06-2004 | |
| 10. | 31.30 ft | on 07-19-2003 | |
| 11. | 28.48 ft | on 07-29-2002 | |
| 12. | 29.55 ft | on 09-12-2001 | |
| 13. | 31.45 ft | on 08-12-2000 | |
| 14. | 29.50 ft | on 08-08-1999 | |
| 15. | 28.95 ft | on 07-22-1998 | |
| 16. | 35.00 ft | on 08-14-1997 | |
| 17. | 26.92 ft | on 08-05-1996 | |
| 18. | 36.25 ft | on 08-02-1995 |
Historic Crests
| 1. | 41.77 ft | on 05-31-2008 |
| 2. | 36.25 ft | on 08-02-1995 |
| 3. | 35.00 ft | on 08-14-1997 |
| 4. | 32.70 ft | on 08-06-2004 |
| 5. | 31.45 ft | on 08-12-2000 |
Historic Crests
| 1. | 41.77 ft | on 05-31-2008 | |
| 2. | 36.25 ft | on 08-02-1995 | |
| 3. | 35.00 ft | on 08-14-1997 | |
| 4. | 32.70 ft | on 08-06-2004 | |
| 5. | 31.45 ft | on 08-12-2000 | |
| 6. | 31.30 ft | on 07-19-2003 | |
| 7. | 30.45 ft | on 09-11-2005 | |
| 8. | 29.55 ft | on 09-12-2001 | |
| 9. | 29.50 ft | on 08-08-1999 | |
| 10. | 29.30 ft | on 07-27-2016 | (P) |
| 11. | 29.08 ft | on 09-23-2014 | (P) |
| 12. | 28.95 ft | on 07-22-1998 | |
| 13. | 28.48 ft | on 07-29-2002 | |
| 14. | 28.46 ft | on 07-28-2017 | (P) |
| 15. | 28.42 ft | on 07-30-2021 | |
| 16. | 27.99 ft | on 08-12-2010 | |
| 17. | 27.84 ft | on 08-24-2015 | (P) |
| 18. | 26.92 ft | on 08-05-1996 |
Vertical Datum Table
| type | STND | NAVD88 | NGVD29 |
|---|---|---|---|
| major Flooding | 36.00 ft | 1133.23 ft | 1135.13 ft |
| moderate Flooding | 32.00 ft | 1129.23 ft | 1131.13 ft |
| minor Flooding | 31.00 ft | 1128.23 ft | 1130.13 ft |
| action | 28.50 ft | 1125.73 ft | 1127.63 ft |
| Latest Value | 24.69 ft | 1121.92 ft | 1123.82 ft |
| Gauge Zero | 0.00 ft | 1097.23 ft | 1099.13 ft |
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.