Gravina River Tides Today
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Gravina River runs a mean tidal range of about 9.2 ft. This month the highest water, 15.2 ft, comes on the afternoon of Nov 25, and the lowest, a -2.7 ft minus tide, on the evening of Nov 25.
| Low tide | 1:56 AM | 1.7 ft |
| High tide | 8:56 AM | 10.5 ft |
| Low tide | 2:44 PM | 4.2 ft |
| High tide | 8:50 PM | 10.1 ft |
Today on the water at Gravina River
Today at Gravina River: high tide at 8:56 AM (10.5 ft) and 8:50 PM (10.1 ft), low tide at 1:56 AM (1.7 ft) and 2:44 PM (4.2 ft). The National Weather Service forecast for Tuesday is chance light rain with E winds 10 mph, 42°F. Sunrise is at 8:12 AM and sunset at 4:42 PM.
| Period | Forecast | Wind | Temp |
|---|---|---|---|
| Overnight | Chance Light Rain | E 10 mph | 36°F |
| Tuesday | Chance Light Rain | E 10 mph | 42°F |
Forecast: National Weather Service point forecast for this location.
Where Gravina River is
Gravina River sits at 60.7667° N, 146.0846° W on the Gulf of Alaska, about 16 mi northwest of Cordova, AK, in Chugach. The station here is a historical NOAA reference station: a gauge measured the tide at this spot from 1976 until 2022, and NOAA still publishes harmonic predictions from that record. There is no live reading here today. The closest gauge measuring live water level is Cordova (NOAA 9454050), 18.3 mi away, and high and low water here run on average about 6 min earlier than there. The nearest weather station is Cordova, AK, a shore station reporting wind and, at most sites, water temperature, 18.3 mi away.
The tide at Gravina River
Gravina River has a semidiurnal tide: two highs and two lows a day of about the same size, roughly 12 hours 25 minutes apart. This month's predictions average 1.9 high tides a day here. The mean range from lower low to higher high is 12.0 ft, and 9.6 ft between the average high and the average low, a large tide. On an average day the higher high tops the lower high by 0.9 ft and the lower low sits 1.5 ft below the other low. For the water around it: Gulf of Alaska tides are mixed semidiurnal, two unequal highs a day with ranges of 8 to 15 ft.
About this station
- High tide reaches Gravina River about 10.0 hours after the moon passes overhead. That lag is local, which is why high water does not line up with the moon.
Datum and source
Heights on this page are feet above mean lower low water (MLLW), the zero NOAA's nautical charts use for soundings. A predicted 0.0 ft low is the average of the lower low each day; a minus tide is water below chart datum, and a 2 ft high means 2 ft more water than the chart shows. NOAA fixes MLLW at Gravina River from the 1983-2001 National Tidal Datum Epoch; mean higher high water is 12.0 ft above it and mean sea level 6.4 ft. The land survey datum NAVD88, the zero on topographic maps and flood maps, is 0.8 ft above MLLW here, so a water level on this page converts to NAVD88 by subtracting that amount. These datums are controlled from NOAA's Valdez, AK gauge. Source: NOAA CO-OPS station 9454153, established 1976, gauge removed 2022. The tide times and heights are NOAA's official harmonic predictions for this station; TidalMap republishes them daily and does not alter them.
Tide stations near Gravina River
- Sheep Bay: 7.3 mi, tides at about the same time
- Cordova: 18.3 mi, tides about 6 min later
- Rocky Point: 25.8 mi, tides at about the same time
- Valdez, Port Valdez: 26.4 mi, tides at about the same time
- Jackson Cove, Glacier Island: 39.1 mi, tides at about the same time
TidalMapMonthly tide calendar
🌊 Biggest flood tides at Gravina River this month: Nov 8, Nov 9, Nov 10, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28. These spring highs push water up into the grass and over the oyster rock; prime for poling into flooded marsh for tailing reds.
🔻 Negative (minus) low tides at Gravina River this month: Nov 7, Nov 8, Nov 9, Nov 10, Nov 11, Nov 22, Nov 23, Nov 24, Nov 25, Nov 26, Nov 27, Nov 28 …. These drain the flats and expose the oyster rock, prime for sight-fishing and clamming.
Best fishing times (solunar)
Major and minor solunar windows for Gravina River, peak feeding activity is around the moon overhead/underfoot (majors) and moonrise/moonset (minors). Score is the day's activity coefficient (0–100).
| Day | Major windows | Minor windows | Score |
|---|---|---|---|
| Today 🌗 | 7:20–9:20 AM 7:45–9:45 PM | 11:39–1:39 AM 2:29–4:29 PM | 50 |
| Wed Nov 4 🌗 | 8:07–10:07 AM 8:32–10:32 PM | 1:20–3:20 AM 2:28–4:28 PM | 63 |
| Thu Nov 5 🌘 | 8:53–10:53 AM 9:18–11:18 PM | 2:56–4:56 AM 2:27–4:27 PM | 75 |
| Fri Nov 6 🌘 | 9:38–11:38 AM 10:03–12:03 AM | 4:31–6:31 AM 2:25–4:25 PM | 85 |
| Sat Nov 7 🌘 | 10:23–12:23 PM 10:48–12:48 AM | 6:06–8:06 AM 2:24–4:24 PM | 93 |
| Sun Nov 8 🌘 | 11:09–1:09 PM 11:34–1:34 AM | 7:42–9:42 AM 2:24–4:24 PM | 97 |
| Mon Nov 9 🌑 | 11:57–1:57 PM 12:22–2:22 AM | 9:20–11:20 AM 2:26–4:26 PM | 99 |
Predictions & observations: NOAA CO-OPS station 9454153. Solunar windows computed from the moon's position for this location. Times shown in the station's local time. Not for navigation.
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