The past few months, we have had more than our fair share of lightning.

Looking back, our friends at Boating magazine had an excellent article on “Surviving Lightning Strikes While Boating.”

We thought a lot of it was worth sharing, so we’ve excerpted the article here.

Powerful, dangerous, highly unpredictable — all are common descriptions of lightning. A direct strike that results only in ringing ears and a few roasted electronics would be considered lucky. Unlucky would be through-hulls blown out, a sunk boat or worse — possibly serious injury or death. While the odds of a boat being struck by lightning are only about one out of 1,000 boats in any given year, the dire consequences of a strike call for some techniques and strategies to avoid disaster:

Timing

A strategy of boating only on sunny, cloudless days may work well in places like Idaho and California, but that would mean almost never using the boat in places such as Florida, Louisiana and much of New England where storms boil up and move in quickly on hot summer days. Boaters should track VHF, Internet and television weather reports and make responsible decisions about whether to go boating depending on the likelihood of storms. Short-term forecasts can actually be fairly good at predicting bigger storms, but small, localized storms might not be reported. This is when knowing how to read the weather yourself can come in handy.

Lightning strikes typically occur in the afternoon. A towering buildup of puffy, cotton-white clouds that rise to the customary flat “anvil” top is a good indication to clear the water and seek shelter — or move out of the storm’s path if possible. That’s if the storm is at least somewhat off in the distance (most storms are about 15 miles in diameter and can build to dangerous levels in fewer than 30 minutes). If lightning and thunder are present, just count the seconds between the lightning and corresponding thunder and then divide by 5 — this will provide a rough estimate of how many miles away the storm is.

A storm that builds directly overhead might be less obvious until those pretty white clouds that were providing some nice shade moments ago turn a threatening hue of gray as rain dumps on you and the wind starts to howl or, worse yet, boom with thunder and lightning that are right on top of each other. Now is the time for a mad dash to the dock and shelter if close by. Like the National Weather Service says: “When thunder roars, go indoors!” If out on open water or too far from shore and shelter, it’s time to hunker down and ride it out.

Caught

Even though getting caught in a storm is not always avoidable, there’s still plenty that boaters can do to minimize the chance of a strike and lessen injury and damage if there is a strike.
We all learn in grade school that lightning seeks the highest point, and on the water that’s the top of the boat — typically a mast, antenna, Bimini top, fishing rod in a vertical rod holder or even the tallest person in an open boat. If possible, find a protected area out of the wind and drop anchor. If the boat has an enclosed cabin, people should be directed to go inside and stay well away from metal objects, electrical outlets and appliances (it’s a good idea to don life jackets too). Side flashes can jump from metal objects to other objects — even bodies — as they seek a path to water. Lowering antennas, towers, fishing rods and outriggers is also advised, unless they’re part of a designated lightning-protection system. Some boaters also like to disconnect the connections and power leads to their antennas and other electronics, which are often damaged or destroyed during a strike or near strike.

Under no circumstances should the VHF radio be used during an electrical storm unless it’s an emergency (handhelds are OK). Also, be careful not to grab two metal objects, like a metal steering wheel and metal railing — that can be a deadly spot to be if there’s a strike. Some boaters opt to steer with a wooden spoon and keep their other hand in a pocket if forced to man the helm during a storm, while others like to wear rubber gloves for insulation.

An open boat like a runabout is the most dangerous to human life, since you are the highest point and most likely to get hit if the boat is struck. If shore is out of reach, the advice is to drop anchor, remove all metal jewelry, put on life jackets and get low in the center of the boat. Definitely stay out of the water and stow the fishing rods. If all goes well, the storm will blow past or rain itself out in 20 to 30 minutes. It’s best to wait at least 30 minutes until after the last clap of thunder to resume activities.

Hit

Knowing what to do in a storm and having the best lightning-protection system installed on the boat is by no means a guarantee that lightning won’t strike. The immediate checklist for a direct hit is very short:

1. Check for unconscious or injured persons first. If they’re moving and breathing, they’ll likely be OK. Immediately begin CPR on unconscious victims if a pulse and/or breathing is absent — there’s no danger of being shocked by someone just struck by lightning.

2. In the meantime, have someone check the bilges for water. It’s rare, but lightning can blow out a transducer or through-hull — or even just blow a hole in the boat. Plug the hole, get the bilge pumps running, work the bail bucket or whatever it takes to stay afloat. An emergency call on the VHF is warranted if the situation is dire. If the radio is toast, break out the flare kit.

If there are no injuries and no holes or major leaks below, just continue to wait it out. Once the danger has passed, check the operation of the engine and all electronics. Even a near strike can fry electronics and an engine’s electronic control unit, cutting off navigation, communication and even propulsion. Some boaters stash charged handheld VHF and GPS units and a spare engine ECU in the microwave or a tin box for this very reason. These makeshift Faraday cages have saved equipment.

Obvious damage will need to be assessed and set right. Even those lucky enough to come away completely unscathed with no apparent damage should have a professional survey done just to be sure. Minor damage to through-hulls can result in slow leaks, and all manner of electrical wackiness can emerge — sometimes much later.

Last thing, It’s best to catch these issues right away and get that information to insurance folks for coverage.

It is estimated that as many as 50% of boats damaged during hurricanes could be saved by using better docklines: lines that were longer, larger, arranged better, and/or protected against chafing.

If you decide to leave your boat at a dock, you'll need to devise a docking plan that is liable to be far different than your normal docking arrangement. By the time preparations are completed, your boat should resemble a spider suspended in the center of a large web. This web will allow the boat to rise on the surge, be bounced around by the storm, and still remain in position.

Take a look at your boat slip and its relation to the rest of the harbor. For most boats you'll want to arrange the bow toward open water or, lacking that, toward the least protected direction. This reduces windage. Next, look for trees, pilings, and dock cleats-anything sturdy-that could be used for securing docklines. With most docking arrangements, lines will have to be fairly taut if the boat is going to be kept away from pilings. The key to your docking arrangement is to use long lines, the longer the better, to accommodate the surge. (A good rule of thumb: storm docklines should be at least as long as the boat itself.) You will probably want to use other boat owners' pilings (and vice versa), which calls for a great deal of planning and cooperation with slip neighbors and marina management.

Lines should also be a larger diameter to resist chafe and excessive stretching. On most boats you should use 1/2" line for boats up to 25', 5/8" line for boats 25' to 34', and 3/4" to 1" lines for larger boats. Chafe protectors (see "Critical Points") must be on any portion of the line that could be chafed by chocks, pulpits, pilings, etc.

To secure lines to hard-to-reach outer pilings, put the eye on the piling so that lines can be adjusted from the boat. For other lines, put the eye on the boat to allow for final adjustment from the dock.

Observed on the first Monday in September, Labor Day pays tribute to the contributions and achievements of American workers. It was created by the labor movement in the late 19th century and became a federal holiday in 1894. Labor Day also symbolizes the end of summer for many Americans, and is celebrated with parties, parades and athletic events.

Labor Day, an annual celebration of workers and their achievements, originated during one of American labor history’s most dismal chapters. In the late 1800s, at the height of the Industrial Revolution in the United States, the average American worked 12-hour days and seven-day weeks in order to eke out a basic living. Despite restrictions in some states, children as young as 5 or 6 toiled in mills, factories and mines across the country, earning a fraction of their adult counterparts’ wages. People of all ages, particularly the very poor and recent immigrants, often faced extremely unsafe working conditions, with insufficient access to fresh air, sanitary facilities and breaks.

As manufacturing increasingly supplanted agriculture as the wellspring of American employment, labor unions, which had first appeared in the late 18th century, grew more prominent and vocal. They began organizing strikes and rallies to protest poor conditions and compel employers to renegotiate hours and pay. Many of these events turned violent during this period, including the infamous Haymarket Riot of 1886, in which several Chicago policemen and workers were killed. Others gave rise to longstanding traditions: On September 5, 1882, 10,000 workers took unpaid time off to march from City Hall to Union Square in New York City, holding the first Labor Day parade in U.S. history.

The idea of a “workingmen’s holiday,” celebrated on the first Monday in September, caught on in other industrial centers across the country, and many states passed legislation recognizing it. Congress would not legalize the holiday until 12 years later, when a watershed moment in American labor history brought workers’ rights squarely into the public’s view. On May 11, 1894, employees of the Pullman Palace Car Company in Chicago went on strike to protest wage cuts and the firing of union representatives.

On June 26, the American Railroad Union, led by Eugene V. Debs, called for a boycott of all Pullman railway cars, crippling railroad traffic nationwide. To break the strike, the federal government dispatched troops to Chicago, unleashing a wave of riots that resulted in the deaths of more than a dozen workers. In the wake of this massive unrest and in an attempt to repair ties with American workers, Congress passed an act making Labor Day a legal holiday in the District of Columbia and the territories. More than a century later, the true founder of Labor Day has yet to be identified.

Many credit Peter J. McGuire, cofounder of the American Federation of Labor, while others have suggested that Matthew Maguire, a secretary of the Central Labor Union, first proposed the holiday. .Labor Day is still celebrated in cities and towns across the United States with parades, picnics, barbecues, fireworks displays and other public gatherings. For many Americans, particularly children and young adults, it represents the end of the summer and the start of the back-to-school season.

Wiring Fail

This picture is an example of what can happen when someone who may be familiar with house wiring works on a boat.

In a house, the neutral and ground wires are connected together at the fuse box. But on a boat, this is a serious safety concern, and especially in freshwater, it's potentially lethal.

Tying the neutral to ground could allow 120 volts of deadly AC current into the boat's ground and bonding system.

If there's also a problem with the safety ground going ashore (not unheard of in marinas), all the underwater metals of the boat can be energized with 120V shore power. This can result in electricity in the water and, especially in freshwater, could injure or even kill nearby swimmers. Called electric shock drowning (ESD), the energized boat hardware creates a large electrified circle around the energized boat. When a person in the water enters that circle, he or she becomes paralyzed, loses the ability to tread water, and may drown.

The other clue that this installation was not done by a boat pro is that the wire is typical "Romex" solid-core type that's fine for a house, but because it's not made from stranded, flexible wire, can be subject to cracking from vibration and become a fire and shock hazard on a boat. 

Wake claims are on the rise.

Many of these claims are caused by boats being slammed into their docks from the wake of a passing boat. Extra fenders and proper docklines can often prevent hull damage in areas with large wakes. Mooring whips are another solution.

Other wake claims come from boats that are rafted together and a large wake causes them to crash into each other. While extra fenders may help, it's best to simply avoid rafting in places with lots of boat traffic.

While not technically a wake claim, the most serious incidents from wake come from injuries to passengers who get thrown around.

Bow-rider boats tend to have the most injuries because anyone sitting in the bow seats is more likely to get tossed up (and land hard).

In conditions with lots of wake, keep passengers farther aft to minimize the chance for injuries, and let your crew know if you're about to cross a large wake so they can hold on.

If you happen to be the boat creating wakes, you should know that under the law, damage caused by your wake is treated exactly the same way as damage caused by a physical fiberglass-crunching collision.

What causes boats to capsize?

Our friends at BoatUS had a great article about why boats are capsize.

In a word, instability. Boats are inherently stable until something causes them to become unstable. And that something is weight — where it is and how much it is determines when a boat will tip over far enough to capsize or fill with water.

A capsize is defined as a boat rolling over onto its side or completely over; swamping typically means that a boat fills with water (often from capsizing) but remains floating. So to simplify, we'll use the term capsize from here on. As mentioned, boats capsize because they become unstable, but there are three main reasons for that instability: too much or unbalanced crew or equipment weight; leaking water, which also creates too much weight; and bad weather, which causes instability as a boat is rocked and filled with water.

We Hope It Floats

There is always a very real possibility of injury when passengers unintentionally go in the water with nothing to hold onto. The U.S. Coast Guard (USCG) has addressed this by requiring monohull powerboats built after 1972 under 20 feet in length to float when filled with water. This is a good thing, because without it, most of the small boats in the study would have sunk out from under the crew, leaving nothing to hang onto while waiting for rescue. The bad news is that boats larger than 20 feet that don't have built-in flotation will eventually sink if capsized, and even smaller boats with flotation can still sink if grossly overloaded. (Note: Boats up to 26 feet built to the American Boat & Yacht Council (ABYC) standards adopted by the National Marine Manufacturers Association (NMMA) also have flotation). Inboard and sterndrive boats have less rigorous basic flotation requirements than outboard-powered boats. If your boat was built before 1972, it wasn't required to — and probably won't — have flotation at all.

Which Boats Are More Likely to Capsize?

Small boats are most likely to capsize. Almost 10 percent were 8-footers, mostly dinghies, and capsizes here often didn't cause much damage. But the biggest group, according to a BoatUS study were the 15-19 footers, representing 41 percent of all capsizes. These boats were typically fishing boats, often with large, hard-to-drain cockpits, sometimes out in poor weather, and were sometimes overloaded.

The next most common group are boats in the 20-24-foot range, representing a quarter of the total; half of those were outboard-powered 22-footers. Larger boats tend to be more stable and rarely capsize, though there were several boats over 38 feet that capsized.

Why They Capsize

Nearly all capsizes can be assigned one of three causes. The most common is too much or poorly distributed weight. Small boats are much more susceptible to an extra person or two or a couple of heavy coolers aboard than larger boats. Older boats especially may have gained weight over the years as more gear is stored aboard. On boats with cockpit drains, an extra beefy friend or a second cooler might be all it takes to make the water come back in through the drains, filling the boat. While most of these under-20 foot boats are required to have flotation, they also must have a capacity plate that states how much weight and how many people can safely be aboard. Pay attention to this number, and keep in mind that the number of seats in a boat is not always an indication of the number of people it can carry safely. Exceeding the capacity limits, even in calm water, is asking for trouble; and in many states, operators can be ticketed for it. All it takes is a stiff wind, a large wake, or an unbalanced load to flip over.

The bottom line is that loading too much cargo or too many passengers in one part of the boat can affect its stability, even if the total load is within the boat's maximum capacity. Weight needs to be evenly distributed, especially in smaller boats. One other thing worth mentioning is that capsizes can also be caused by modifications that affect the stability of the boat. Even a small tuna tower can severely change the center of gravity, especially on a smaller boat.

The second major cause of capsizing is leaks. Sometimes it's as simple as forgetting to put the drain plug in; other times it's leaking fittings. Water sloshing around in the bottom of the boat affects stability and waves or a wake can cause it to flip. Tying the drain plug to your boat key is a simple way to remember the plug. On the other hand, leaking fittings that can fill the boat with water are usually out of sight, often in livewells and bait boxes. Several claims were reported when an owner installed a livewell fitting using cheap PVC pipes and valves, and at least one livewell had no shut-off valve at all with no way to stop the ingress of water once it began leaking. Any fitting that penetrates the hull needs to be closeable and should be made from stainless steel, bronze, or Marelon. One more thing the claims revealed: Some livewells are plumbed in such a way that they'll flood the boat if the valve is left open while underway.

Many older outboard-powered boats have low transom cutouts that can cause the boat to flood simply by slowing down too quickly, especially with excess weight in the stern. Newer outboard boats have a well that reduces the risk.

Some boats have cockpits that drain into the bilge (generally considered a poor design), requiring the use of a bilge pump to even stay afloat. Bilge pumps are designed to remove nuisance water only, not to keep a boat from sinking. If your boat's cockpit drains into the bilge, be aware that if the bilge pump fails, your boat can fill with water and capsize or sink.

Weather is another major cause of capsizes, sometimes in concert with overloading. Small boats are easily overwhelmed by modest waves or even wake, especially if they've got a full load and sit low in the water. A sudden squall can flip even a larger boat. Check the weather forecast before you go out, and keep a weather eye on the sky. In most areas, NOAA broadcasts continuous weather via VHF radio. If you're within range, smartphone apps can show you detailed weather maps, including radar, which can indicate approaching storms. Weather changes quickly on the water, so at the first sign of bad weather, head back to the dock. If you're caught out in a squall, have your passengers stay low near the center of the boat to maintain stability.

Estimating Distance Off

By Dick Everitt for USBOAT

Got a tape measure and a piece of string? You can use them to find out how far away you are from, say, a lighthouse.

Distance off by vertical sextant angle is an old navigation technique used for keeping a safe distance from an object of known height, such as a lighthouse, the height of which is shown on a chart. With modern GPS, there's no longer need to know how to calculate this, but it's a fun trick to show the kids, and it's a useful backup if you're ever forced to use basic navigation techniques. But as many of us don't carry a sextant, or a set of tables, we can copy what the ancients had been doing for centuries before the sextant was invented. They simply exploited their knowledge that the ratio of 60:1 is equal to an angle of 1 degree. To find this distance, simply measure the angle of the center of the light above sea level and look up the "distance off" in a set of tables, such as those found in a nautical almanac, or use a simple calculation (below). The center of the light itself, not the height of the top of the tower, is used because that's the height marked on the chart. Usually we can forget any tidal height allowance, as less tide will put us farther off in safer water.

In its simplest form, you'll use something that measures 60 units from your eye attached to a vertical ruler marked in the same units. (Using a metric rule to do this exercise makes your math calculation simpler because you can work in whole numbers instead of fractions.)

Hold a piece of string 60 cm (about 2 feet) in front of your eye. (I find a loop of string of the correct length around my neck more comfortable than holding a knot in my teeth.) Sight across the ruler and measure the height of the center of the light above sea level, in millimeters. Then use the formula below.

It's a rough-and-ready technique, but one day it might save you being set in too close to a nasty reef or rocks.