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HOW TO REACT TO A SUDDEN STORM

Posted On: August 12, 2020


When A Squall Comes Calling

Fortunately, most afternoon thunderstorms last less than half an hour. But even a "routine" squall can turn threatening and scary when combined with mechanical failure. You might be able to make it to a protected anchorage before the squall arrives and then be on your way afterward with no drama. Or, you can employ several effective techniques to deal with oncoming threatening weather.

First, check your weather before going boating, even for a day. If you're heading out on a longer trip, especially on a boat you're not very familiar with, be extremely conservative weather-wise. If a front is predicted, or thunderstorms, assume there will be squalls parading around and wreaking havoc. Wait it out and take a lay day. If you do set out, have a backup plan for seeking shelter quickly along your route, vigilantly check the weather. Squall lines can often be seen on the horizon, giving you time to take evasive action. If everyone is wearing life jackets, that's one less thing to worry about when the weather pipes up. Once facing deteriorating weather, you've got three tried-and-true options, depending on how far offshore you are and what kind of boat you have.

First Option: Tuck And Hide

If it's clear you can make landfall before heavy weather hits, do it. Don't wait to see if things get better. They rarely do, especially if gear starts to break. Find a harbor of refuge, cove, marina, or at least a protective shoreline with good holding for anchoring. The best choice is one that limits the fetch of storm-driven waves and blocks the worst of the wind. Put out enough line to create a scope of at least 3:1, make sure your anchor has dug in, then let out additional line to create scope of at least 7:1 — more if you're on a rode that's mostly rope and have swinging room. Secure the wheel or tiller in the center of the boat to increase stability; don't let it spin around. If you hear thunder or see lightning, go below if possible and avoid touching metal. Put on your shoes, stay low but never lie down, unplug electronics, if possible. Lower antennas. Stay out of the water. Touching two metals at the same time completes the circuit, one way people are killed by lightning.

If there's no lightning but strong winds, and your engine is in good working order, the most experienced person can stay at the helm and motor forward into the wind just enough to take the pressure off the anchor; this helps you avoid dragging, until the squall passes. In a driving rain, the helmsman may want to don swim goggles to take the sting out and wear rubber gloves when touching the wheel. Remember, lightning is still a danger for at least half an hour after a squall passes.

Second Option: Hold Station

If anchoring isn't possible, motoring slowly into the wind and waves permits most boats (power and sail) to make a bit of headway, maintain control, and take waves over the bow, minimizing the chance of swamping. The size and design of a boat, the propulsion power available, the experience level of the crew, and the severity of the squall all have their part to play in how a squall is best handled. Powerboats with open bows, such as bowriders and center-consoles, are vulnerable to swamping, so take the waves at a 20- to 30-degree angle; make sure to keep the boat moving fast enough so that the bow lifts over the waves, but not so fast that it buries on the other side. To maintain control, you may need to throttle up on the wave face, then throttle back as the wave passes under you. In this way, you can jog slowly to windward, making minimal headway, until the squall has passed.

Many sailboat mainsails have only two reef points and, in many cases, even pulling down to the second reef still may prove too much sail in a strong squall. In this case, it may be best to take all the sail down and motor slowly to windward. If you're confident in the boat, then leaving a patch of sail up on a larger, well-ballasted sailboat and motorsailing at a 20- to 30-degree angle to the wind can steady the boat and minimize the amount of water coming aboard. In smaller, lighter sailboats, it's often best to drop all sail before the squall hits and motor slowly to windward; if the boat gets even a little sideways to the wind, you risk loss of control or even capsize.

Third Option: Heave To

Sailboats can heave to, which will all but stop the boat in a controlled way, an invaluable technique — like engaging a handbrake on a car — that can be used in a short squall so long as you have room around you. Reef and sheet in the mainsail and partially furl the headsail. Then tack the boat without releasing the jib sheet (which backwinds the jib), and secure the helm; this holds the boat with the bow 20 or 30 degrees off the wind. With the sails and rudder balanced against one another, the boat will steady itself and drift slowly downwind, usually at no more than 1 knot. Heaving to takes practice, and its effectiveness and the precise tactics depend upon your boat's design. To make sure you're ready to employ it when you need it, head out on a day with strong but steady winds and practice. Your maneuverability will be limited when hove to, so don't try it in a ship channel in poor visibility. 

BASED ON ARTICLE BY  By Beth A. Leonard, Bernadette Bernon and Michael Vatalaro FOR BOATUS

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COUNTDOWN TO SURVIVING A STORM

Posted On: August 05, 2020

COUNTDOWN TO A STORM

Here's a day-by-day guide to getting your boat ready once a storm has been forecast for your region.

Keep in mind that every tropical storm moves at its own speed, so treat this a rough guideline.

The goal is to finish your boat preparations well before the first big winds start to blow.

Day 0: Advance Preparations

The first round of storm preparations is best addressed at the beginning of boating season — well before any particular storm starts brewing.

  • Review your boat's insurance policy. What actions does it require of you? If you live in an area that may be prone to hurricane activity, many policies may carry a "Named Storm Deductible" that is higher than your normal Deductible.  Some  policies allow you to lower your named storm deductible by properly preparing the boat by moving it to land, lashing it down with in-ground anchors and removing all canvas and/or sails from the exterior.

Day 1: Storm's First Reports

Only a few storms are destructive in any one region; many more are supremely inconvenient. When a forecast shows a wide range of possible landfalls, it's human nature to want to assume the storm will miss you. But avoid taking that bait. The first day that your boat's location is included in the storm's possible track — that's the day to start getting ready.

  • Rearrange your schedule for the next few days to allow for storm prep
  • Gather chafe gear for docklines, mooring pendants, or anchor rode. Duct tape and rags are not sufficient. Commercial products such as Chafe-Pro have been proven to work in extreme conditions
  • Gather any tools you'll need to remove gear or electronics from the boat
  • Marina Boats: check in with the marina manager; coordinate your plans. Make sure marina staff can reach you on short notice (cell phone, email)

Trailered Boats:

Confirm that the trailer and tow vehicle are ready to go.

Moored Boats:

Locate any extra pendants, chafe gear, shackles or any other gear you'll need to beef up your attachment to the mooring.

Anchored Boats:

Choose your hurricane hole. Gather all the equipment (extra anchors, chain, rode, chafe gear) you'll need to create a storm-anchor system.

Day 2: Storm Approaches

If a whole day has passed and your boat is still in the storm's possible track, it's time to act. Some marinas require you to execute your storm plan more than 72 hours before the predicted landfall. Check for bridge closures due to the storm. This is the time to think through a storm's four threats: wind, rain, waves, and surge. What can you do to mitigate each of those?

Prepare For Waves:

If your boat remains in a marina, keep in mind that sandbars and breakwaters may be covered by the surge, exposing your boat to the waves' full force. If waves are a possible factor, orient the bow facing them.

Prepare For Wind:

That means removing absolutely everything you can: biminis, cushions, chairs, tables, outriggers, dinghies, motors, sails. If your boat will be in a slip, position the bow toward the likeliest direction of storm winds — but give precedence to the direction of waves. Tie the boat as far from the dock as you can. Each dockline should be long enough to its own strongpoint to allow for surge.

Prepare For Rain:

Ensure that your scuppers and bilge are free of debris, sludge, and any obstructions. Remove electronics or other equipment that's sensitive to moisture. Tape over hatches and dorades to keep wind-driven rain out. Check that bilge pumps are working. Top off batteries that will run the pumps and turn of un-needed items that will drain those batteries. If you have a low-freeboard boat or one with inadequate drains, it will need to be hauled out or trailered to avoid sinking.

Prepare For Surge:

The spider web of extra long docklines recommended should allow for a rise and fall of water level that may be unprecedented for your area.

Day 3: Storm Imminent

Time is now getting tight. Secure any items that you might have missed; remove any valuable items from the boat that remain. Take photos of your storm preparation in case your insurance company needs them later.

Day 4: Storm Watch

A hurricane watch indicates that hurricane conditions may pose a threat within 36 hours. By this time, you should have done all you can to secure your boat. The focus now should be on getting yourself and your family somewhere safe.

Day 5: Storm Warning

A hurricane warning for your area indicates that sustained winds of 74 mph are expected within 24 hours. Hopefully, by now, you and your family are safely away from the coastline — and your boat is just about the last thing on your mind

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