Thunderstorms with marble-sized hail to hit Tarrant and Dallas counties Tuesday

The National Weather Service issued a weather alert at 1:59 p.m. on Tuesday, warning residents of strong thunderstorms until 2:30 p.m.

The storms could bring wind gusts of up to 30 mph and marble-sized hail (0.5 inches).

"At 1:58 p.m., Doppler radar tracked a strong thunderstorm near Richland Hills, moving east at 60 mph," says the NWS. "Gusty winds could knock down tree limbs and blow around unsecured objects. Minor damage to outdoor objects is possible."

Expect strong thunderstorms in the following locations:

• Fort Worth, Arlington, Irving, Grand Prairie, Euless, Bedford, and DFW Intl Airport around 2:05 p.m.

• Dallas around 2:10 p.m.

• Farmers Branch and Dallas Love Field around 2:15 p.m.

• University Park and Highland Park around 2:20 p.m.

• Richardson around 2:25 p.m.

The NWS states, "If outdoors, consider seeking shelter inside a building."

This alert is in effect until 2:30 p.m.

How to react when facing a lightning hazard?

Lightning strikes the United States about 25 million times a year. Most of the strikes occur in the summer, killing 20 people each year, according to the NWS. Chance of lightning increases as a thunderstorm approaches and peaks when the storm is overhead. It diminishes as the storm moves away.

Here are tips on how to stay safe during a thunderstorm:

• To reduce the chance of being struck by lightning, when venturing outside, have a plan to get to a safer area.

• If the sky grows ominous and you hear thunder, seek out a safe place to take shelter.

• Once inside, abstain from touching corded phones, electrical devices, plumbing, and windows and doors.

• Wait for 30 minutes after the most recent lightning or thunder before venturing outside.

If finding indoor shelter is not an option:

• Steer clear of open fields, hilltops, or ridge tops.

• Keep a distance from tall, solitary trees or other elevated structures. When in a forest, stay in proximity to shorter tree groupings.

• If you are in a group, disperse to prevent the current from passing between group members.

• If you are camping in an open setting, set up camp in a valley, ravine, or other low spot. Bear in mind, a tent does not protect you from lightning.

• Do not approach water, wet objects, or metal items. Although water and metal do not attract lightning, they conduct electricity effectively.

What to do in the rain on the road?

• Turn on headlights — Even in daylight, using headlights can help improve visibility and let other drivers know where you are.

• While on the road — Opt for the middle lanes and remain on higher ground. Rainwater tends to gather along the road edges.

• Avoid puddles — Driving into puddles or low rainwater areas can lead to vehicles hydroplaning or losing control.

• Maintain a safe distance from large vehicles — Trucks or buses can produce a water spray that hampers visibility.

• Avoid flooded areas — When encountering a flooded road, do a U-turn and head back. The strong currents from flash floods can pull drivers off roadways. Driving through deep water can also negatively affect a vehicle's mechanical and electrical systems.

What is hydroplaning?

Hydroplaning occurs when a vehicle begins to slide uncontrollably on wet roads.

This happens when water in front of the tire builds up faster than the vehicle’s weight can push water out of the way. The water pressure then causes the vehicle to rise and slide on a thin layer of water between the tires and the road, making the driver lose control. Hydroplaning is most commonly attributed to three factors:

1. Vehicle speed — When a vehicle’s speed increases, the tire-traction grip and ability to control the vehicle decreases. Drive at a reduced speed during wet weather.

2. Water depth — The deeper the water, the sooner a vehicle loses traction on the road. It doesn’t matter how deep the water is, even a thin layer can lead to hydroplaning.

3. Tire tread depth — Checking your tire tread before hitting the road is important, as low or no tread can lead to sliding.

In the event of your vehicle hydroplaning, here’s what to know:

• Ease off the accelerator — Step off the gas to slow down the vehicle until the tires find traction.

• Turn into the skid — Turning into the skid can help the vehicle’s tires realign to regain control.

• Make sure the tires reconnect with the road — During the skid, wait until the tires reconnect with the road and then gently straighten the wheels to regain control.

• Brake gently as needed — Brake normally if the vehicle has anti-lock brakes and pump brakes gently if in an older vehicle.

Source: The National Weather Service