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AlaskaNatural lake, 1,083 acres, Dillingham Census Area

Supply Lake wind forecast

Shoreline: USGS National Hydrography Dataset

7-day outlook

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

  1. MonOct 26

    11-21kt

    SW, gusts 31

    High 46°F, rain 32%

    Stay ashore
  2. TueOct 27

    4-10kt

    SE, gusts 15

    High 44°F, rain 4%

    Good
  3. WedOct 28

    23-34kt

    SE, gusts 46

    High 46°F, rain 85%

    Stay ashore
  4. ThuOct 29

    7-20kt

    SSE, gusts 28

    High 42°F, rain 93%

    Stay ashore
  5. FriOct 30

    14-16kt

    S, gusts 22

    High 42°F, rain 87%

    Use caution
  6. SatOct 31

    12-13kt

    S, gusts 19

    High 39°F, rain 41%

    Good
  7. SunNov 1

    8kt

    NNW, gusts 13

    High 37°F, rain 18%

    Good

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 Supply

Over the next 7 days on Supply Lake, the windiest stretch looks like Wednesday, with gusts to about 46 kt. Sunday is the calmest day in the outlook, topping out near 8 kt.

Sunday is the pick for sailing, and Tuesday 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 Supply, 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.

Supply Lake forecast questions

What is the wind forecast for Supply Lake this weekend?

In the National Weather Service forecast from October 25: Saturday: S wind 12 to 13 kt, gusts to 19 kt, high near 39°F. Sunday: NNW wind 8 kt, gusts to 13 kt, high near 37°F. The live cards above always show the latest update.

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

Based on the National Weather Service forecast from October 25, Sunday looks best, with NNW wind around 8 to 8 kt and gusts near 13 kt. Forecasts beyond three days shift, so check the live day cards above and look again the night before.

Where does the Supply 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 Supply is blown out, these are the closest alternatives. Tap through for their wind forecasts.