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AlaskaNatural lake, 1,401 acres, Yukon-Koyukuk Census Area

Big Fish Lake (Yukon-Koyukuk County, Alaska) wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

Daylight hours, 8am to 7pm local time. Wind in knots.

  1. MonOct 26

    4-6kt

    SW, gusts 9

    High 25°F, rain 88%

    Use caution
  2. TueOct 27

    2-4kt

    W, gusts 5

    High 16°F, rain 42%

    Light wind
  3. WedOct 28

    3kt

    WNW, gusts 5

    High 22°F, rain 28%

    Light wind
  4. ThuOct 29

    3-6kt

    SW, gusts 7

    High 22°F, rain 24%

    Good
  5. FriOct 30

    2-3kt

    NNW, gusts 4

    High 24°F, rain 64%

    Light wind
  6. SatOct 31

    3-4kt

    WSW, gusts 4

    High 23°F, rain 22%

    Light wind
  7. SunNov 1

    2-3kt

    WNW, gusts 4

    High 17°F, rain 16%

    Light wind

Hour by hour, next 3 days

Wind and gusts0 to 30+ ktScoreGood, caution, stay ashoreNightBest windowArrows point where the wind blows to.

This week on Big Fish

Over the next 7 days on Big Fish Lake, the windiest stretch looks like Monday, with gusts to about 9 kt. Wednesday is the calmest day in the outlook, topping out near 3 kt.

Thursday is the pick for sailing, and Sunday looks best for kayaks and paddleboards. Mornings are usually calmer than afternoons, so check the hourly strip for the exact window.

Reading a lake wind forecast

Sustained wind is the average over a couple of minutes; gusts are the short peaks. On inland water the gap between the two matters as much as the average. A steady 12 kt is a pleasant sail, while 8 kt gusting 20 kt knocks small boats flat and tires out paddlers.

On a lake the size of Big Fish, waves stay modest, but nearby hills, trees and buildings bend the wind. Expect shifts and puffs, especially close to shore, and treat the forecast speed as an average across open water.

The National Weather Service forecast covers a 2.5 km grid, so local effects like a sea breeze off a big lake, a cold front or afternoon thunderstorms can arrive earlier or stronger than shown. Check the forecast again on the morning you go, and keep an eye on small craft advisories.

Big Fish Lake forecast questions

What is the wind forecast for Big Fish Lake this weekend?

In the National Weather Service forecast from October 25: Saturday: WSW wind 3 to 4 kt, gusts to 4 kt, high near 23°F. Sunday: WNW wind 2 to 3 kt, gusts to 4 kt, high near 17°F. The live cards above always show the latest update.

When is the best day to sail on Big Fish Lake this week?

Based on the National Weather Service forecast from October 25, Thursday looks best, with SW wind around 3 to 6 kt and gusts near 7 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

Where does the Big Fish Lake wind forecast come from?

From the National Weather Service gridded forecast for the 2.5 km cell over the lake. It is the same forecast local NWS offices use, updated several times a day. We convert wind to knots and add our own go or no-go call for each activity.

What wind is too strong for a kayak or paddleboard?

We flag paddling as risky once sustained wind passes about 8 kt or gusts pass 12 kt, and advise staying ashore above 12 kt sustained or 18 kt gusts. Offshore wind is the most dangerous because it pushes you away from the launch.

Nearby lakes

If Big Fish is blown out, these are the closest alternatives. Tap through for their wind forecasts.