Forecasts, Lifejackets and Turning Back

I have been on the water for a long time, and I can tell you the moment most incidents begin. It is not in the waves. It is in the car park, when someone looks at a grey sky, feels the gusts on their face, and says, "We've driven all this way." This entry is about the three things that stop that sentence becoming a story: reading the weather, wearing the right kit, and turning back early.

The Beaufort scale, for small boats

Admiral Francis Beaufort devised his wind scale in 1805 for sailing ships. It still works for dinghies if you read it with a beginner's eye.

Reading a forecast properly

Use a marine forecast, not just a general weather app. In the United Kingdom the Met Office publishes the Shipping Forecast and the more useful Inshore Waters Forecast; in the United States, NOAA's National Weather Service issues coastal and nearshore marine forecasts. Look for three things: the mean wind speed, the gusts, and the direction. A forecast of 8 knots gusting 20 is not an 8-knot day. It is a 20-knot day with pauses.

Direction matters as much as strength. An offshore wind, blowing from the land out to sea, feels gentle on a sheltered beach and grows steadily stronger as you drift away from it. Paddleboards, inflatables and small dinghies are blown out to sea this way every summer. Beginners should sail only when the wind is onshore or blowing along the coast. On tidal water, also check tide times: wind against tide makes short, steep, unpleasant waves.

Cold water is the real danger

Falling into water below about 15 °C triggers cold water shock: an involuntary gasp and rapid breathing that can make you inhale water. Researchers describe the "1-10-1" principle: about one minute to get your breathing under control, about ten minutes of useful movement before your hands and arms stop working, and up to about one hour before hypothermia makes you unconscious. The RNLI's advice, Float to Live, is simple: if you fall in, lean back, spread your arms and legs, and float until the gasping passes. Then make a plan.

Dress for the water, not the air. A wetsuit in spring and autumn, a drysuit in winter, and a spare warm layer in a dry bag every time.

Buoyancy aid or lifejacket

• Buoyancy aid (ISO 12402-5, 50N): for dinghy sailing, kayaking and paddling near help. Lets you swim and climb back aboard.
• Lifejacket (ISO 12402-4, 100N, or 12402-3, 150N): for open water, weaker swimmers and anyone who might be unconscious in the water. Designed to turn you face-up.
• Always with it: a whistle, a phone in a waterproof pouch, a knife or rope cutter, and for coastal trips a handheld VHF radio.

Whichever you wear, it must be zipped, fastened and fitted. A buoyancy aid lying on the seat is decoration.

Pre-launch checklist

1. Marine forecast read for the whole session, including gusts and direction.
2. Wind onshore or along the shore; never offshore for a solo beginner.
3. Tide times checked; no wind-against-tide plans.
4. Clothing chosen for the water temperature, spare layer packed.
5. Buoyancy aid or lifejacket on, fastened and adjusted.
6. Bungs in, rudder pinned, centreboard secured, kit tied to the boat.
7. A named person ashore knows your route and your back-by time.
8. A turn-back time agreed before you leave, and honoured.

Turning back, and calling for help

Decide your turn-back point before you launch: a time, a landmark, or a wind strength. When you reach it, turn. If something goes wrong in UK waters, call 999 or 112 and ask for the Coastguard; in the United States call 911, or use VHF channel 16 on the water anywhere. Stay with your boat. Rescuers find boats far more easily than heads.