COOPER C AT MOUTH NR COOPER LANDING AK
USGS 15261000 · Alaska · reports discharge (live), gauge height, water temperature
Reading COOPER C AT MOUTH NR COOPER LANDING AK…
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USGS 15261000 · Alaska · reports discharge (live), gauge height, water temperature
What the agencies suggest
Carry a pocket thermometer to monitor water temperatureNational Park Service
General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.
Reading Nov 5, 6:15 PM AKST · provisional USGS data
Above normal for Nov 5 Falling · 24 h Below NWS action stage
Discharge, last 7 days: 169 readings from Oct 29, 7:15 PM AKDT to Nov 5, 6:15 PM AKST; ranging 37.2 to 56.9 ft³/s; latest 44.6 ft³/s; shaded band: typical range (25th–75th percentile) for each date.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Discharge (ft³/s) | Gauge height (ft) | Water temp (°F) | Normal, 25th–75th (ft³/s) |
|---|---|---|---|---|
| Nov 5, 6:15 PM AKST | 44.6 | 10.1 | 37.2 | 24–39 |
| Nov 5, 5:15 PM AKST | 44.6 | 10.1 | 37.4 | 24–39 |
| Nov 5, 4:15 PM AKST | 44.6 | 10.1 | 37.4 | 24–39 |
| Nov 5, 3:15 PM AKST | 44.6 | 10.1 | 37.4 | 24–39 |
| Nov 5, 2:15 PM AKST | 45.7 | 10.1 | 37.2 | 24–39 |
| Nov 5, 1:15 PM AKST | 45.7 | 10.1 | 37 | 24–39 |
| Nov 5, 12:15 PM AKST | 45.7 | 10.1 | 37 | 24–39 |
| Nov 5, 11:15 AM AKST | 45.7 | 10.1 | 37 | 24–39 |
| Nov 5, 10:15 AM AKST | 45.7 | 10.1 | 37 | 24–39 |
| Nov 5, 9:15 AM AKST | 45.7 | 10.1 | 37.2 | 24–39 |
| Nov 5, 8:15 AM AKST | 46.9 | 10.1 | 37.2 | 24–39 |
| Nov 5, 7:15 AM AKST | 46.9 | 10.1 | 37.4 | 24–39 |
| Nov 5, 6:15 AM AKST | 46.9 | 10.1 | 37.6 | 24–39 |
| Nov 5, 5:15 AM AKST | 46.9 | 10.1 | 37.8 | 24–39 |
| Nov 5, 4:15 AM AKST | 46.9 | 10.1 | 37.8 | 24–39 |
| Nov 5, 3:15 AM AKST | 48 | 10.2 | 37.9 | 24–39 |
| Nov 5, 2:15 AM AKST | 48 | 10.2 | 38.1 | 24–39 |
| Nov 5, 1:15 AM AKST | 48 | 10.2 | 38.1 | 24–39 |
| Nov 5, 12:15 AM AKST | 48 | 10.2 | 38.1 | 24–39 |
| Nov 4, 11:15 PM AKST | 49.2 | 10.2 | 38.5 | 25–39 |
| Nov 4, 10:15 PM AKST | 49.2 | 10.2 | 38.5 | 25–39 |
| Nov 4, 9:15 PM AKST | 49.2 | 10.2 | 38.7 | 25–39 |
| Nov 4, 8:15 PM AKST | 50.5 | 10.2 | 38.7 | 25–39 |
| Nov 4, 7:15 PM AKST | 50.5 | 10.2 | 39 | 25–39 |
| Nov 4, 6:15 PM AKST | 50.5 | 10.2 | 39 | 25–39 |
| Nov 4, 5:15 PM AKST | 51.7 | 10.2 | 39.2 | 25–39 |
| Nov 4, 4:15 PM AKST | 51.7 | 10.2 | 39.4 | 25–39 |
| Nov 4, 3:15 PM AKST | 51.7 | 10.2 | 39.4 | 25–39 |
| Nov 4, 2:15 PM AKST | 51.7 | 10.2 | 39.4 | 25–39 |
| Nov 4, 1:15 PM AKST | 49.2 | 10.2 | 39.4 | 25–39 |
| Nov 4, 12:15 PM AKST | 50.5 | 10.2 | 39.2 | 25–39 |
| Nov 4, 11:15 AM AKST | 50.5 | 10.2 | 39 | 25–39 |
| Nov 4, 10:15 AM AKST | 50.5 | 10.2 | 38.8 | 25–39 |
| Nov 4, 9:15 AM AKST | 53 | 10.2 | 39 | 25–39 |
| Nov 4, 8:15 AM AKST | 55.6 | 10.2 | 39 | 25–39 |
| Nov 4, 7:15 AM AKST | 53 | 10.2 | 39.2 | 25–39 |
| Nov 4, 6:15 AM AKST | 48 | 10.2 | 39.2 | 25–39 |
| Nov 4, 5:15 AM AKST | 44.6 | 10.1 | 39 | 25–39 |
| Nov 4, 4:15 AM AKST | 41.3 | 10.1 | 39 | 25–39 |
| Nov 4, 3:15 AM AKST | 41.3 | 10.1 | 39 | 25–39 |
| Nov 4, 2:15 AM AKST | 41.3 | 10.1 | 39 | 25–39 |
| Nov 4, 1:15 AM AKST | 41.3 | 10.1 | 39 | 25–39 |
| Nov 4, 12:15 AM AKST | 42.4 | 10.1 | 39 | 25–39 |
| Nov 3, 11:15 PM AKST | 42.4 | 10.1 | 39 | 25–41 |
| Nov 3, 10:15 PM AKST | 42.4 | 10.1 | 39 | 25–41 |
| Nov 3, 9:15 PM AKST | 42.4 | 10.1 | 39.2 | 25–41 |
| Nov 3, 8:15 PM AKST | 42.4 | 10.1 | 39.4 | 25–41 |
| Nov 3, 7:15 PM AKST | 43.5 | 10.1 | 39.4 | 25–41 |
| Nov 3, 6:15 PM AKST | 43.5 | 10.1 | 39.4 | 25–41 |
| Nov 3, 5:15 PM AKST | 43.5 | 10.1 | 39.4 | 25–41 |
| Nov 3, 4:15 PM AKST | 42.4 | 10.1 | 39.4 | 25–41 |
| Nov 3, 3:15 PM AKST | 42.4 | 10.1 | 39.6 | 25–41 |
| Nov 3, 2:15 PM AKST | 43.5 | 10.1 | 39.4 | 25–41 |
| Nov 3, 1:15 PM AKST | 43.5 | 10.1 | 39.4 | 25–41 |
| Nov 3, 12:15 PM AKST | 43.5 | 10.1 | 39 | 25–41 |
| Nov 3, 11:15 AM AKST | 43.5 | 10.1 | 39 | 25–41 |
| Nov 3, 10:15 AM AKST | 43.5 | 10.1 | 38.7 | 25–41 |
| Nov 3, 9:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 8:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 7:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 6:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 5:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 4:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 3:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 2:15 AM AKST | 43.5 | 10.1 | 38.5 | 25–41 |
| Nov 3, 1:15 AM AKST | 43.5 | 10.1 | 38.3 | 25–41 |
| Nov 3, 12:15 AM AKST | 43.5 | 10.1 | 38.3 | 25–41 |
| Nov 2, 11:15 PM AKST | 43.5 | 10.1 | 38.1 | 26–43 |
| Nov 2, 10:15 PM AKST | 43.5 | 10.1 | 38.1 | 26–43 |
| Nov 2, 9:15 PM AKST | 43.5 | 10.1 | 38.1 | 26–43 |
| Nov 2, 8:15 PM AKST | 43.5 | 10.1 | 38.3 | 26–43 |
| Nov 2, 7:15 PM AKST | 43.5 | 10.1 | 38.3 | 26–43 |
| Nov 2, 6:15 PM AKST | 44.6 | 10.1 | 38.5 | 26–43 |
| Nov 2, 5:15 PM AKST | 44.6 | 10.1 | 38.5 | 26–43 |
| Nov 2, 4:15 PM AKST | 44.6 | 10.1 | 38.3 | 26–43 |
| Nov 2, 3:15 PM AKST | 44.6 | 10.1 | 38.1 | 26–43 |
| Nov 2, 2:15 PM AKST | 44.6 | 10.1 | 37.9 | 26–43 |
| Nov 2, 1:15 PM AKST | 44.6 | 10.1 | 37.6 | 26–43 |
| Nov 2, 12:15 PM AKST | 44.6 | 10.1 | 37.2 | 26–43 |
| Nov 2, 11:15 AM AKST | 44.6 | 10.1 | 37 | 26–43 |
| Nov 2, 10:15 AM AKST | 44.6 | 10.1 | 36.9 | 26–43 |
| Nov 2, 9:15 AM AKST | 44.6 | 10.1 | 36.9 | 26–43 |
| Nov 2, 8:15 AM AKST | 44.6 | 10.1 | 36.7 | 26–43 |
| Nov 2, 7:15 AM AKST | 44.6 | 10.1 | 36.5 | 26–43 |
| Nov 2, 6:15 AM AKST | 44.6 | 10.1 | 36.7 | 26–43 |
| Nov 2, 5:15 AM AKST | 44.6 | 10.1 | 36.7 | 26–43 |
| Nov 2, 4:15 AM AKST | 44.6 | 10.1 | 36.7 | 26–43 |
| Nov 2, 3:15 AM AKST | 45.7 | 10.1 | 36.9 | 26–43 |
| Nov 2, 2:15 AM AKST | 45.7 | 10.1 | 37 | 26–43 |
| Nov 2, 1:15 AM AKST | 45.7 | 10.1 | 37.2 | 26–43 |
| Nov 2, 12:15 AM AKST | 44.6 | 10.1 | 37.2 | 26–43 |
| Nov 1, 11:15 PM AKST | 44.6 | 10.1 | 37.4 | 26–47 |
| Nov 1, 10:15 PM AKST | 44.6 | 10.1 | 37.8 | 26–47 |
| Nov 1, 9:15 PM AKST | 45.7 | 10.1 | 38.1 | 26–47 |
| Nov 1, 8:15 PM AKST | 45.7 | 10.1 | 38.3 | 26–47 |
| Nov 1, 7:15 PM AKST | 45.7 | 10.1 | 38.7 | 26–47 |
| Nov 1, 6:15 PM AKST | 45.7 | 10.1 | 38.8 | 26–47 |
| Nov 1, 5:15 PM AKST | 45.7 | 10.1 | 39 | 26–47 |
| Nov 1, 4:15 PM AKST | 45.7 | 10.1 | 39 | 26–47 |
| Nov 1, 3:15 PM AKST | 45.7 | 10.1 | 39 | 26–47 |
| Nov 1, 2:15 PM AKST | 45.7 | 10.1 | 38.7 | 26–47 |
| Nov 1, 1:15 PM AKST | 45.7 | 10.1 | 38.1 | 26–47 |
| Nov 1, 12:15 PM AKST | 45.7 | 10.1 | 37.8 | 26–47 |
| Nov 1, 11:15 AM AKST | 45.7 | 10.1 | 37.4 | 26–47 |
| Nov 1, 10:15 AM AKST | 45.7 | 10.1 | 37.2 | 26–47 |
| Nov 1, 9:15 AM AKST | 45.7 | 10.1 | 37.4 | 26–47 |
| Nov 1, 8:15 AM AKST | 45.7 | 10.1 | 37.4 | 26–47 |
| Nov 1, 7:15 AM AKST | 45.7 | 10.1 | 37.4 | 26–47 |
| Nov 1, 6:15 AM AKST | 46.9 | 10.1 | 37.4 | 26–47 |
| Nov 1, 5:15 AM AKST | 46.9 | 10.1 | 37.4 | 26–47 |
| Nov 1, 4:15 AM AKST | 46.9 | 10.1 | 37.4 | 26–47 |
| Nov 1, 3:15 AM AKST | 45.7 | 10.1 | 37.6 | 26–47 |
| Nov 1, 2:15 AM AKST | 46.9 | 10.1 | 37.6 | 26–47 |
| Nov 1, 1:15 AM AKST | 46.9 | 10.1 | 37.8 | 26–47 |
| Nov 1, 1:15 AM AKDT | 46.9 | 10.1 | 37.8 | 26–47 |
| Nov 1, 12:15 AM AKDT | 46.9 | 10.1 | 37.9 | 26–47 |
| Oct 31, 11:15 PM AKDT | 46.9 | 10.1 | 38.1 | 26–53 |
| Oct 31, 10:15 PM AKDT | 46.9 | 10.1 | 38.3 | 26–53 |
| Oct 31, 9:15 PM AKDT | 46.9 | 10.1 | 38.5 | 26–53 |
| Oct 31, 8:15 PM AKDT | 48 | 10.2 | 38.7 | 26–53 |
| Oct 31, 7:15 PM AKDT | 48 | 10.2 | 38.7 | 26–53 |
| Oct 31, 6:15 PM AKDT | 48 | 10.2 | 38.7 | 26–53 |
| Oct 31, 5:15 PM AKDT | 48 | 10.2 | 38.8 | 26–53 |
| Oct 31, 4:15 PM AKDT | 48 | 10.2 | 39 | 26–53 |
| Oct 31, 3:15 PM AKDT | 48 | 10.2 | 39 | 26–53 |
| Oct 31, 2:15 PM AKDT | 49.2 | 10.2 | 39 | 26–53 |
| Oct 31, 1:15 PM AKDT | 49.2 | 10.2 | 39 | 26–53 |
| Oct 31, 12:15 PM AKDT | 49.2 | 10.2 | 38.5 | 26–53 |
| Oct 31, 11:15 AM AKDT | 49.2 | 10.2 | 38.1 | 26–53 |
| Oct 31, 10:15 AM AKDT | 49.2 | 10.2 | 37.9 | 26–53 |
| Oct 31, 9:15 AM AKDT | 49.2 | 10.2 | 38.1 | 26–53 |
| Oct 31, 8:15 AM AKDT | 49.2 | 10.2 | 38.1 | 26–53 |
| Oct 31, 7:15 AM AKDT | 50.5 | 10.2 | 38.1 | 26–53 |
| Oct 31, 6:15 AM AKDT | 50.5 | 10.2 | 38.1 | 26–53 |
| Oct 31, 5:15 AM AKDT | 50.5 | 10.2 | 38.1 | 26–53 |
| Oct 31, 4:15 AM AKDT | 50.5 | 10.2 | 38.1 | 26–53 |
| Oct 31, 3:15 AM AKDT | 51.7 | 10.2 | 38.1 | 26–53 |
| Oct 31, 2:15 AM AKDT | 51.7 | 10.2 | 38.3 | 26–53 |
| Oct 31, 1:15 AM AKDT | 53 | 10.2 | 38.5 | 26–53 |
| Oct 31, 12:15 AM AKDT | 53 | 10.2 | 38.3 | 26–53 |
| Oct 30, 11:15 PM AKDT | 53 | 10.2 | 38.3 | 27–57 |
| Oct 30, 10:15 PM AKDT | 54.2 | 10.2 | 38.3 | 27–57 |
| Oct 30, 9:15 PM AKDT | 54.2 | 10.2 | 38.5 | 27–57 |
| Oct 30, 8:15 PM AKDT | 55.6 | 10.2 | 38.7 | 27–57 |
| Oct 30, 7:15 PM AKDT | 55.6 | 10.2 | 39 | 27–57 |
| Oct 30, 6:15 PM AKDT | 56.9 | 10.2 | 39.4 | 27–57 |
| Oct 30, 5:15 PM AKDT | 56.9 | 10.2 | 39.6 | 27–57 |
| Oct 30, 4:15 PM AKDT | 55.6 | 10.2 | 39.4 | 27–57 |
| Oct 30, 3:15 PM AKDT | 54.2 | 10.2 | 39.4 | 27–57 |
| Oct 30, 2:15 PM AKDT | 55.6 | 10.2 | 39.2 | 27–57 |
| Oct 30, 1:15 PM AKDT | 55.6 | 10.2 | 39 | 27–57 |
| Oct 30, 12:15 PM AKDT | 55.6 | 10.2 | 39 | 27–57 |
| Oct 30, 11:15 AM AKDT | 55.6 | 10.2 | 38.8 | 27–57 |
| Oct 30, 10:15 AM AKDT | 55.6 | 10.2 | 38.8 | 27–57 |
| Oct 30, 9:15 AM AKDT | 54.2 | 10.2 | 39 | 27–57 |
| Oct 30, 8:15 AM AKDT | 53 | 10.2 | 39 | 27–57 |
| Oct 30, 7:15 AM AKDT | 50.5 | 10.2 | 39 | 27–57 |
| Oct 30, 6:15 AM AKDT | 49.2 | 10.2 | 39 | 27–57 |
| Oct 30, 5:15 AM AKDT | 48 | 10.2 | 39 | 27–57 |
| Oct 30, 4:15 AM AKDT | 48 | 10.2 | 39 | 27–57 |
| Oct 30, 3:15 AM AKDT | 45.7 | 10.1 | 39 | 27–57 |
| Oct 30, 2:15 AM AKDT | 43.5 | 10.1 | 39.2 | 27–57 |
| Oct 30, 1:15 AM AKDT | 41.3 | 10.1 | 39.2 | 27–57 |
| Oct 30, 12:15 AM AKDT | 41.3 | 10.1 | 39.4 | 27–57 |
| Oct 29, 11:15 PM AKDT | 41.3 | 10.1 | 39.6 | 27–56 |
| Oct 29, 10:15 PM AKDT | 40.2 | 10.1 | 39.6 | 27–56 |
| Oct 29, 9:15 PM AKDT | 38.2 | 10.1 | 39.7 | 27–56 |
| Oct 29, 8:15 PM AKDT | 38.2 | 10.1 | 39.7 | 27–56 |
| Oct 29, 7:15 PM AKDT | 37.2 | 10.1 | 39.9 | 27–56 |
Water temperature, last 7 days: 169 readings from Oct 29, 7:15 PM AKDT to Nov 5, 6:15 PM AKST; ranging 36.5 to 39.9 °F; latest 37.2 °F.
USGS provisional data may be revised. Source: USGS instantaneous values.
| Time | Water temperature (°F) |
|---|---|
| Nov 5, 6:15 PM AKST | 37.2 |
| Nov 5, 5:15 PM AKST | 37.4 |
| Nov 5, 4:15 PM AKST | 37.4 |
| Nov 5, 3:15 PM AKST | 37.4 |
| Nov 5, 2:15 PM AKST | 37.2 |
| Nov 5, 1:15 PM AKST | 37 |
| Nov 5, 12:15 PM AKST | 37 |
| Nov 5, 11:15 AM AKST | 37 |
| Nov 5, 10:15 AM AKST | 37 |
| Nov 5, 9:15 AM AKST | 37.2 |
| Nov 5, 8:15 AM AKST | 37.2 |
| Nov 5, 7:15 AM AKST | 37.4 |
| Nov 5, 6:15 AM AKST | 37.6 |
| Nov 5, 5:15 AM AKST | 37.8 |
| Nov 5, 4:15 AM AKST | 37.8 |
| Nov 5, 3:15 AM AKST | 37.9 |
| Nov 5, 2:15 AM AKST | 38.1 |
| Nov 5, 1:15 AM AKST | 38.1 |
| Nov 5, 12:15 AM AKST | 38.1 |
| Nov 4, 11:15 PM AKST | 38.5 |
| Nov 4, 10:15 PM AKST | 38.5 |
| Nov 4, 9:15 PM AKST | 38.7 |
| Nov 4, 8:15 PM AKST | 38.7 |
| Nov 4, 7:15 PM AKST | 39 |
| Nov 4, 6:15 PM AKST | 39 |
| Nov 4, 5:15 PM AKST | 39.2 |
| Nov 4, 4:15 PM AKST | 39.4 |
| Nov 4, 3:15 PM AKST | 39.4 |
| Nov 4, 2:15 PM AKST | 39.4 |
| Nov 4, 1:15 PM AKST | 39.4 |
| Nov 4, 12:15 PM AKST | 39.2 |
| Nov 4, 11:15 AM AKST | 39 |
| Nov 4, 10:15 AM AKST | 38.8 |
| Nov 4, 9:15 AM AKST | 39 |
| Nov 4, 8:15 AM AKST | 39 |
| Nov 4, 7:15 AM AKST | 39.2 |
| Nov 4, 6:15 AM AKST | 39.2 |
| Nov 4, 5:15 AM AKST | 39 |
| Nov 4, 4:15 AM AKST | 39 |
| Nov 4, 3:15 AM AKST | 39 |
| Nov 4, 2:15 AM AKST | 39 |
| Nov 4, 1:15 AM AKST | 39 |
| Nov 4, 12:15 AM AKST | 39 |
| Nov 3, 11:15 PM AKST | 39 |
| Nov 3, 10:15 PM AKST | 39 |
| Nov 3, 9:15 PM AKST | 39.2 |
| Nov 3, 8:15 PM AKST | 39.4 |
| Nov 3, 7:15 PM AKST | 39.4 |
| Nov 3, 6:15 PM AKST | 39.4 |
| Nov 3, 5:15 PM AKST | 39.4 |
| Nov 3, 4:15 PM AKST | 39.4 |
| Nov 3, 3:15 PM AKST | 39.6 |
| Nov 3, 2:15 PM AKST | 39.4 |
| Nov 3, 1:15 PM AKST | 39.4 |
| Nov 3, 12:15 PM AKST | 39 |
| Nov 3, 11:15 AM AKST | 39 |
| Nov 3, 10:15 AM AKST | 38.7 |
| Nov 3, 9:15 AM AKST | 38.5 |
| Nov 3, 8:15 AM AKST | 38.5 |
| Nov 3, 7:15 AM AKST | 38.5 |
| Nov 3, 6:15 AM AKST | 38.5 |
| Nov 3, 5:15 AM AKST | 38.5 |
| Nov 3, 4:15 AM AKST | 38.5 |
| Nov 3, 3:15 AM AKST | 38.5 |
| Nov 3, 2:15 AM AKST | 38.5 |
| Nov 3, 1:15 AM AKST | 38.3 |
| Nov 3, 12:15 AM AKST | 38.3 |
| Nov 2, 11:15 PM AKST | 38.1 |
| Nov 2, 10:15 PM AKST | 38.1 |
| Nov 2, 9:15 PM AKST | 38.1 |
| Nov 2, 8:15 PM AKST | 38.3 |
| Nov 2, 7:15 PM AKST | 38.3 |
| Nov 2, 6:15 PM AKST | 38.5 |
| Nov 2, 5:15 PM AKST | 38.5 |
| Nov 2, 4:15 PM AKST | 38.3 |
| Nov 2, 3:15 PM AKST | 38.1 |
| Nov 2, 2:15 PM AKST | 37.9 |
| Nov 2, 1:15 PM AKST | 37.6 |
| Nov 2, 12:15 PM AKST | 37.2 |
| Nov 2, 11:15 AM AKST | 37 |
| Nov 2, 10:15 AM AKST | 36.9 |
| Nov 2, 9:15 AM AKST | 36.9 |
| Nov 2, 8:15 AM AKST | 36.7 |
| Nov 2, 7:15 AM AKST | 36.5 |
| Nov 2, 6:15 AM AKST | 36.7 |
| Nov 2, 5:15 AM AKST | 36.7 |
| Nov 2, 4:15 AM AKST | 36.7 |
| Nov 2, 3:15 AM AKST | 36.9 |
| Nov 2, 2:15 AM AKST | 37 |
| Nov 2, 1:15 AM AKST | 37.2 |
| Nov 2, 12:15 AM AKST | 37.2 |
| Nov 1, 11:15 PM AKST | 37.4 |
| Nov 1, 10:15 PM AKST | 37.8 |
| Nov 1, 9:15 PM AKST | 38.1 |
| Nov 1, 8:15 PM AKST | 38.3 |
| Nov 1, 7:15 PM AKST | 38.7 |
| Nov 1, 6:15 PM AKST | 38.8 |
| Nov 1, 5:15 PM AKST | 39 |
| Nov 1, 4:15 PM AKST | 39 |
| Nov 1, 3:15 PM AKST | 39 |
| Nov 1, 2:15 PM AKST | 38.7 |
| Nov 1, 1:15 PM AKST | 38.1 |
| Nov 1, 12:15 PM AKST | 37.8 |
| Nov 1, 11:15 AM AKST | 37.4 |
| Nov 1, 10:15 AM AKST | 37.2 |
| Nov 1, 9:15 AM AKST | 37.4 |
| Nov 1, 8:15 AM AKST | 37.4 |
| Nov 1, 7:15 AM AKST | 37.4 |
| Nov 1, 6:15 AM AKST | 37.4 |
| Nov 1, 5:15 AM AKST | 37.4 |
| Nov 1, 4:15 AM AKST | 37.4 |
| Nov 1, 3:15 AM AKST | 37.6 |
| Nov 1, 2:15 AM AKST | 37.6 |
| Nov 1, 1:15 AM AKST | 37.8 |
| Nov 1, 1:15 AM AKDT | 37.8 |
| Nov 1, 12:15 AM AKDT | 37.9 |
| Oct 31, 11:15 PM AKDT | 38.1 |
| Oct 31, 10:15 PM AKDT | 38.3 |
| Oct 31, 9:15 PM AKDT | 38.5 |
| Oct 31, 8:15 PM AKDT | 38.7 |
| Oct 31, 7:15 PM AKDT | 38.7 |
| Oct 31, 6:15 PM AKDT | 38.7 |
| Oct 31, 5:15 PM AKDT | 38.8 |
| Oct 31, 4:15 PM AKDT | 39 |
| Oct 31, 3:15 PM AKDT | 39 |
| Oct 31, 2:15 PM AKDT | 39 |
| Oct 31, 1:15 PM AKDT | 39 |
| Oct 31, 12:15 PM AKDT | 38.5 |
| Oct 31, 11:15 AM AKDT | 38.1 |
| Oct 31, 10:15 AM AKDT | 37.9 |
| Oct 31, 9:15 AM AKDT | 38.1 |
| Oct 31, 8:15 AM AKDT | 38.1 |
| Oct 31, 7:15 AM AKDT | 38.1 |
| Oct 31, 6:15 AM AKDT | 38.1 |
| Oct 31, 5:15 AM AKDT | 38.1 |
| Oct 31, 4:15 AM AKDT | 38.1 |
| Oct 31, 3:15 AM AKDT | 38.1 |
| Oct 31, 2:15 AM AKDT | 38.3 |
| Oct 31, 1:15 AM AKDT | 38.5 |
| Oct 31, 12:15 AM AKDT | 38.3 |
| Oct 30, 11:15 PM AKDT | 38.3 |
| Oct 30, 10:15 PM AKDT | 38.3 |
| Oct 30, 9:15 PM AKDT | 38.5 |
| Oct 30, 8:15 PM AKDT | 38.7 |
| Oct 30, 7:15 PM AKDT | 39 |
| Oct 30, 6:15 PM AKDT | 39.4 |
| Oct 30, 5:15 PM AKDT | 39.6 |
| Oct 30, 4:15 PM AKDT | 39.4 |
| Oct 30, 3:15 PM AKDT | 39.4 |
| Oct 30, 2:15 PM AKDT | 39.2 |
| Oct 30, 1:15 PM AKDT | 39 |
| Oct 30, 12:15 PM AKDT | 39 |
| Oct 30, 11:15 AM AKDT | 38.8 |
| Oct 30, 10:15 AM AKDT | 38.8 |
| Oct 30, 9:15 AM AKDT | 39 |
| Oct 30, 8:15 AM AKDT | 39 |
| Oct 30, 7:15 AM AKDT | 39 |
| Oct 30, 6:15 AM AKDT | 39 |
| Oct 30, 5:15 AM AKDT | 39 |
| Oct 30, 4:15 AM AKDT | 39 |
| Oct 30, 3:15 AM AKDT | 39 |
| Oct 30, 2:15 AM AKDT | 39.2 |
| Oct 30, 1:15 AM AKDT | 39.2 |
| Oct 30, 12:15 AM AKDT | 39.4 |
| Oct 29, 11:15 PM AKDT | 39.6 |
| Oct 29, 10:15 PM AKDT | 39.6 |
| Oct 29, 9:15 PM AKDT | 39.7 |
| Oct 29, 8:15 PM AKDT | 39.7 |
| Oct 29, 7:15 PM AKDT | 39.9 |
Map of USGS gauge 15261000 and the river around it
Where COOPER C AT MOUTH NR COOPER LANDING AK sits, with 1 other gauge on the same river.
Federal guidance. Alaska Department of Fish and Game publishes no water-temperature line for trout anglers that we found. The lines below are the National Park Service's, federal guidance, not a Alaska rule:
Under the federal 68°F line. Water 37.2°F now; the highest in the last 24 hours was 39°F. That is under the 68°F at which the National Park Service, at Grand Teton National Park, recommends anglers stop fishing in the afternoon (“cease fishing at 2 p.m. when water temperatures are likely to exceed 68°F”). Water warms through the afternoon, so check again later in the day: “Carry a pocket thermometer to monitor water temperature.”
Normal for Nov 5: 24–39 ft³/s (middle half of 36 years of record). Now: 44.6 ft³/s, above normal.
Above normal for this date. 44.6 ft³/s is between the 75th and 90th percentiles of daily mean flow for Nov 5 at this gauge over 36 years of record (1958–2026): 10th 19, 25th 24, median 29, 75th 39, 90th 74 ft³/s.
Daily means on record for Nov 5: lowest 15 ft³/s, highest 490 ft³/s.
Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).
Falling over 24 hours: discharge down 11.7%, from 50.5 to 44.6 ft³/s. Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.
Species list not on file for this gauge. Check the Alaska Department of Fish and Game: Alaska fish stocking search · Alaska fishing regulations.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)Cold water. Water 37.2°F. NWS: “Cold shock can be just as severe and dangerous from water temperatures of 50-60°F (10-15°C) as it is from water at 35°F (2°C).” “Always wear a life jacket in and around the water.”
Cold Water Hazards and Safety (National Weather Service)Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.
Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
NWS observed 10.1 ft stage, 44 ft³/s at Nov 5, 6:15 PM AKST (NWS gauge COCA2; its stage datum can differ from the USGS gauge height).
Forecasts are not available. Only observed stages are available for this point.
Open the NWS gauge page · What the categories mean (National Weather Service)
Checked Nov 5, 7:00 PM AKST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.