NWS: From Strong Rip Currents, Dangerous Marine Life, Beware the Nine Dangers at Beach

By  //  April 24, 2017

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National Weather Service safety tips

From strong currents and dangerous marine life, to lightning and contaminated water, plan your visit to the beach this summer with the following National Weather Service safety tips in mind.

BREVARD COUNTY, FLORIDA –  Recent spring breakers and other beachgoers have had their vacation plans disrupted by both strong rip currents and migrating sharks along the Eastern Coast of Florida this spring.

The Space Coast features Florida’s finest beaches and some basic knowledge and pre-planning will make your trip to the beach more enjoyable and safe.

From strong currents and dangerous marine life, to lightning and contaminated water, plan your visit to the beach this summer with the following National Weather Service safety tips in mind.

Rip Currents

Rip currents account for more than 80 percent of rescues performed by surf beach lifeguards. They are powerful, channeled currents of water flowing away from shore that quickly pull swimmers out to sea.

Rip currents typically extend from the shoreline, through the surf zone, and past the line of breaking waves. The best way to stay safe is to recognize the danger of rip currents. If caught in one, don’t fight it! Swim parallel to the shore and swim back to land at an angle. Always remember to swim at beaches with lifeguards.

Smooth water located between breaking waves could signal the presence of a rip current.

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Shorebreak
A shorebreak is an ocean condition when waves break directly on the shore. Both small and high waves can be equally as unpredictable and dangerous and typically form when there is a rapid transition from deep to shallow water.

The power of a shorebreak can cause injuries to extremities and the cervical spine. Spinal cord injuries most often occur when diving headfirst into the water or being tumbled in the waves by the force of the waves. Be sure to ask a lifeguard about the wave conditions before going into the water.

Shorebreak have caused serious injury and death to both experienced and inexperienced bodysurfers and swimmers.

Lightning

Since 2000, an average of 38 people have been killed annually by lightning in the United States. Already in 2013, seven people have died due to lightning strikes. There is no safe place outside when thunderstorms are in the area. When thunder roars, go indoors! The safest places during lightning activity are substantial buildings and hard-topped vehicles. Rain shelters, small sheds, and open vehicles are not safe. Wait 30 minutes after the last thunder crack before going back to the beach.

There is no safe place outside when thunderstorms are in the area. If you hear thunder, you are likely within striking distance of the storm.

Tsunamis

A tsunami is a series of ocean waves generated by any rapid large-scale disturbance of the sea water. Most tsunamis are generated by earthquakes, but they may also be caused by volcanic eruptions, landslides, undersea slumps, or meteor impacts.

The tsunami wave may come gently ashore or may increase in height to become a fast moving wall of turbulent water several meters high. Although we can’t prevent a tsunami, the effects can be reduced through community preparedness, timely warnings, and effective response.

Tsunamis are most commonly generated by earthquakes in coastal regions. This map shows wave height in the Pacific Ocean related to the 2010 Japan tsuanmi.

Sharks

Shark attacks, though rare, are most likely to occur near shore, typically inshore of a sandbar or between sandbars, where sharks can become trapped by low tide, and near steep drop offs where shark’s prey gather. The relative risk of a shark attack is very small, but should always be minimized whenever possible. To reduce your risk:

Don’t swim too far from shore
Stay in groups – sharks are more likely to attack a solitary individual
Avoid being in the water during darkness or twilight when sharks are most active
Don’t go in the water if bleeding from a wound – sharks have a very acute sense of smell
Leave the shiny jewelry at home – the reflected light resembles fish scales
Avoid brightly-colored swimwear – sharks see contrast particularly well

Only about a dozen of the more than 300 species of sharks have been involved in attacks on humans. Despite their reputation, they would much rather feed on fish and marine mammals.

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Jellyfish

Keep an eye out for jellyfish. All jellyfish sting, but not all have venom that hurts humans. Of the 2,000 species of jellyfish, only about 70 seriously harm or may occasionally kill people.

When on the beach, take note of jellyfish warning signs. Be careful around jellies washed up on the sand as some still sting if their tentacles are wet. Tentacles torn off a jellyfish can sting, too.

If you are stung, don’t rinse with water, which could release more poison. Lifeguards usually give first aid for stings. See a doctor if you have an allergic reaction.

Jellyfish have the ability to sting with their tentacles. While the severity of stings varies in humans, most jellyfish stings result only in minor discomfort.

Excessive Heat and Sunburn

Too much heat and sun can spoil a vacation. Heat is the leading weather-related killer in the United States, causing more deaths than floods, lightning, tornados, and hurricanes combined. Heat disorder symptoms include sunburn, heat cramps, heat exhaustion, and heat stroke.

Spending the day at the beach can lead to any of these disorders but the most visible is sunburn, which can take up to 24 hours before the full damage is visible. The two most common types of burns are first degree and second degree burns resulting in redness and even blisters.

When a burn is severe, accompanied by a headache, chills, or a fever, seek medical help right away. Be sure to protect your skin from the sun while it heals.

Sunburn can be prevented by covering up, taking shelter, and using sunscreen.

Harmful Algal Blooms

Harmful Algal Blooms (HABs) (popularly referred to as red tides) are dense populations or “blooms” of algae that form in coastal waters. A small percentage of these blooms can be toxic to marine animals and humans. People can get sick by swimming directly in the water and by eating contaminated shellfish. If a sufficient amount of toxins are ingested, the results can be fatal.

Currently, the combination of satellite imagery, buoy data, and field observations allow scientists to forecast the timing and location of blooms. This allows coastal managers and public health officials to make desicions regarding shellfish harvesting and beach closures to ensure the health of both residents and visitors.

This deep red harmful algae, called Lingulodinium polyedrum, often produces brightly colored water discoloration. It has been associated with fish and shellfish mortality events, but its threat to human health is still being evaluated.

Water Quality

Coastal beaches are among the most treasured natural resources in the nation, but beach closures or advisories caused by poor water quality often prevent the public from enjoying these resources. As water flows from land to coastal waters, it is often contaminated by untreated sewage from boats, pets, failing septic systems, fertilizers, and spills from hazardous substances.

High levels of bacteria and other chemicals in the water can cause gastrointestinal illnesses in those that swim directly in the water. When visiting the beach, be aware of all beach closures and advisories.

NOAA’s beach and water quality predictions are now available in real-time for Michigan’s Lake St. Clair. This will allow the local beach managers and area officials to make timely public health decisions regarding E. coli contamination and beach closures.

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