• Lightning dangers increase in the summer due to more thunderstorms and outdoor activities.
  • Summer heat and sunshine can be deadly if precautions are not taken.
  • Flash flooding is an underestimated hazard during the spring and summer.
  • Rip currents, high surf and waterspouts need to be watched for at the beach.

Summer is officially here and it comes with several types of weather conditions that can be dangerous with more people getting outdoors in the warmer weather.

Let’s take a look at some of the hazards that summer weather can bring and what you need to do to stay safe.

Remember Lightning Safety

Lightning is four times hotter than the sun, so the safest place to be during a thunderstorm is inside a building or in a hard-topped vehicle.

Get to a safe place as soon as possible when you see lightning, and remain there until 30 minutes after the last rumble of thunder before going outdoors.

Many are caught off-guard in the summer by pop-up thunderstorms. Most lightning deaths occur outside and are related to water or sports. June, July and August have been the deadliest for lightning from 2010 to 2021.

Lightning Fatalities By Month From 2010 to 2021.

The odds of being struck by lightning in your lifetime are 1 in 15,300, but the odds of being struck in a given year are just 1 in 1,222,000, according to the National Weather Service (NWS).

Lightning can strike up to 15 miles from the parent thunderstorm, so remember to pay attention to the weather, and when thunder roars, head indoors. Also, have a plan if you will be far from shelter or boating.

Heat Illnesses and Sunburn Can Ruin Fun in the Sun

More people die from heat than any other weather condition in the U.S. on average. Each year, 158 people die from heat, based on the 1992-2021 average, according to the NWS.

Everyone should take extreme heat seriously, but this is especially true for children, the elderly and those with health issues.

The first signs of heat illness are increased sweating and muscle cramps. This can evolve into heat exhaustion or heat stroke and possibly death if treatment is not received.

If you start to exhibit symptoms of heat illness, get out of the heat, drink nonalcoholic and decaffeinated beverages, take a cool shower and rest.

(MORE: Four Things Extreme Heat Does To Your Body)

Sunburn and overexposure to ultraviolet (UV) radiation are additional concerns. Too much sun can lead to a first- or second-degree burn and possibly skin cancer.

(MORE: The UV Index: How Much Is Your Skin In Danger?)

To minimize your risk of heat illness and skin damage:

  • Limit exposure to the sun during the middle of the day, from 10 a.m. to 4 p.m.
  • Use a sunscreen of SPF 30 or higher and apply 30 minutes prior to exposure and reapply every two hours.
  • Wear protective, lightweight and light-colored clothing, including a wide-brimmed hat and UV-blocking sunglasses.
  • Take frequent breaks.
  • Drink more water than usual, even if you don’t feel thirsty.

Warm temperatures help ground-level ozone form and that can result in poor air quality. Those who suffer from respiratory disease can be at risk. The EPA recommends that strenuous outdoor activity be limited on days with unhealthy air quality.

Turn Around, Don’t Drown

Flash flooding is also more frequent in the summer. NOAA’s Weather Prediction Center noted that 75 percent of all flash flood reports in the U.S. occurred from late April through mid-September, and 34 percent occurred from June 10-August 3, based on data from 2007-17.

Flash flooding refers to short-term flood events triggered by heavy rainfall over a relatively small area.

There are several reasons flash flooding becomes more common in the summer. Warmer temperatures and an increase in moisture can combine with a slow-moving system to produce heavy rainfall in a short period of time. Thunderstorm clusters can also develop and trigger flash flooding.

Motorists are stranded on a flooded section of Canal Road in Washington D.C. during a heavy rainstorm, Monday, July 8, 2019. (Dave Dildine/WTOP via AP)

Motorists are stranded on a flooded section of Canal Road in Washington D.C. during a heavy rainstorm, Monday, July 8, 2019.

(Dave Dildine/WTOP via AP)

In addition, the Southwest monsoon can bring slow-moving thunderstorms that dump torrential rainfall, and tropical cyclones or their remnants can also bring serious flash flooding.

To stay safe during a flash flood event:

  • Do not drive into a flooded area.
  • If floodwaters are near your vehicle, abandon it and move to higher ground immediately.
  • Know that 6 inches of water can cause loss of control of a car and cause it to stall.
  • Cars can float in 12 inches of water and 24 inches can sweep your vehicle away.

Do not try to wade through floodwater. Just 6 inches of water can knock a person off their feet.

Flooding killed an average of 94 people a year in the U.S. during the 10 years ending in 2020. That’s plenty of proof for why you should avoid all floodwaters.

Rip Currents, High Surf and Waterspouts Are Concerns at the Beach

Rip currents are one of several hazards to be aware of at the beach. Rip currents are strong but narrow currents that flow away from shore.

More than 80% of rescues performed by surf beach lifeguards are due to rip currents. Rip currents have caused an average of 67 deaths annually in the past 10 years.

Significant rip currents are more likely when a strong onshore wind is present. Water in a rip current is generally darker than surrounding waters and are most often found in areas where waves do not break.

If you are caught in a rip current, swim parallel to the shore and back to land at an angle. If you cannot swim out of it, float or calmly tread water until you are out of the rip current.

High surf can also be dangerous, as large waves can catch beachgoers off guard. So don’t turn your back on the ocean. Dangerous swimming conditions are also usually present in high surf.

Waterspouts are another concern to watch for at the beach. Waterspouts are tornadoes that develop over water and can develop with a thunderstorm or in fair weather.

Fair-weather waterspouts typically stay over water and move fairly slow, while those associated with thunderstorms can move onshore.

Always be aware of weather conditions, water conditions and the risk of rip currents.

The Weather Company’s primary journalistic mission is to report on breaking weather news, the environment and the importance of science to our lives. This story does not necessarily represent the position of our parent company, IBM.

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