Sailing weather decision trainer

ASA 101 sailing is daylight, familiar waters, and light-to-moderate conditions. Train the skipper habit: read the whole forecast, spot the real risk cues, update the plan as time passes, then choose the safest beginner call.

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Beginner envelopedaylight / moderate
Read weather guide

Forecast decoder lab

Read a marine-forecast-style brief, mark every cue that affects a beginner ASA 101 plan, then choose the conservative skipper action.

Forecast-to-sail timeline lab

Practice the NOAA/NWS habit of reading hazards first, then updating the skipper call as forecast timing, observations, crew state, and return margin change.

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Start a timeline lab, then make the dock, reef, shorten, or stay-docked call at each time gate.

Sky and water watch simulator

Read the visual cue, compare it to the forecast context, and make the conservative skipper call before the weather owns the plan.

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Saved weather practice

Saved locally in asa101.weather.v1. Export it from Progress backup with the rest of your trainer data.

Decision rules this drill reinforces

Gusts count

Plan for the gust number, not just sustained wind. A 12 kt forecast gusting 22 kt is a reef-or-stay-home problem for many new skippers.

Advisories matter

Small Craft Advisory thresholds vary by region, and there is no single national definition of "small craft." For ASA 101 practice, treat an advisory as a strong no-go.

Exit early

Thunder, fog, darkness, fatigue, and an unsafe lee shore are reasons to shorten the plan before the crew is stressed.

Choose a smaller win

Good seamanship often means protected water, reefed sails, dockside knots, or another day.

Sources