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It's hot in Metro Detroit and it feels even hotter.

Ask Sue Hudnut of Detroit. The garden manager of Lafayette Greens urban garden downtown described Friday's steamy, sticky air like this: "It felt like a sauna bath."

The National Weather Service recorded a peak temperature of 93 degrees with a heat index of 107 degrees at 2 p.m. Friday at Detroit Metro Airport. Even more heat and humidity is forecast for Saturday: a high near 98, with a heat index of up to 111.

There's also a threat of severe thunderstorms, which could bring some relief but lead to power outages.

Residents are coping as best they can. The fortunate ones are staying inside in air-conditioned comfort, while those who have to be outdoors for work or other reasons are using a variety of strategies to battle the heat.

“It’s hot," said Romjan Ali of Warren, an attendant at Supreme Parking in downtown Detroit. "I feel like I sit in the middle of the fire, but a lot of wind came and helped us.”

As business slowed in mid-afternoon, he walked across Cass Avenue to the Fort Washington Plaza building, keeping watch on his lot from its air-conditioned lobby.

Safety officials say the combination of near triple-digit temperatures and high humidity creates conditions that can be dangerous and urge residents to take precautions.

Detroit Deputy Fire Commissioner David Fornell said people should minimize their time outside and stay hydrated. He warned against drinking alcohol and coffee, instead suggesting water, Gatorade or other drinks that replenish electrolytes.

Other tips: wear light-colored clothing and seek shade whenever possible.

Fornell also urged people to keep on eye on their neighbors, and if someone looks dizzy or overheated, "invite them in, give them something to drink, and if there is any doubt call 911. That's what we're here for."

The same goes for pets. The Humane Society urges pet owners to protect their companions by limiting the length and intensity of outdoor exercise, providing ample shade and water, using a cooling body wrap, vest or mat, and keeping animals out of parked vehicles.

The Michigan Humane Society's cruelty team has responded to calls daily this week about dogs left in inadequate conditions for the weather, and its Detroit clinic treated two canines that died from heat-related illness, spokeswoman Anna Chrisman said.

At the Pontiac-based Michigan Animal Rescue League, "we've definitely seen more strays with heat exhaustion than normal," said Kathleen Craig, its dog care coordinator. Signs can include excessive panting or wobbliness, and canines at greatest risk can include breeds with thicker, heavier coats, she added.

"If you see any signs like that ... you want to try to get them in the shade," in air-conditioning or even to a kid-sized pool, Craig said. "It’s important to be vigilant."

Public safety and utility officials have spent days getting ready for the late-week temperature spike.

Ryan Stowe, DTE Energy vice president of distribution operations, said outages are likely but the company's staff is ready to respond quickly.

"We’re preparing crews and having them on standby," he said. "It's all hands on deck." 

DTE power usage was expected to be up by 50% Friday and Saturday over a typical summer day, Stowe said.

"We’re going to see some outages, no doubt," he said. "It’s really not the heat … it’s the extra usage and demand on the system ... Overall, we think we’re in really good shape. We have all of the power plants running but know that there could be a weak spot here or there."

Consumers Energy is experiencing similar high demand, spokesman Brian Wheeler said.

“I don't know about DTE, but we’re also seeing energy use that’s 50% above a typical summer day," he said. "We have the energy supply and grid that’s able to meet the needs of our 1.8 million Michigan customers.”

Road crews also face effects from the heat.

The recent stretch of high temperatures caused pavement to heave on the westbound Interstate 94 service drive near Merriman Road.

Workers for the Michigan Department of Transportation finished repairing the damaged asphalt Friday but other road projects scheduled for this weekend might be canceled if the heat becomes "any more extreme" or if storms hit, spokeswoman Diane Cross said. 

"The heat can make the asphalt materials pliable, and in its pliable state very heavy trucks can make dents or ruts in the road," she said. "Which is a problem when other heavy trucks and motorcycles drive over the ruts because it's no longer a smooth surface."

Air quality is also an issue when the mercury nears triple-digit territory.

Due to elevated ozone levels, the weather service issued an air-quality alert Friday for Wayne, Oakland, Macomb, Washtenaw, Monroe, Lenawee and St. Clair counties.

People and workers outside are urged to avoid activities that can lead to ozone formation: refueling vehicles, operating gasoline-powered lawn equipment and using charcoal lighter fluid, officials said.

The weather service advises people with respiratory diseases such as asthma to limit prolonged outdoor exertion.

To help residents beat the heat, numerous Metro Detroit communities have opened cooling centers.

  • Detroit has multiple cooling centers, including the Northwest Activities Center, 18100 Meyers, 7 a.m.-10 p.m. Saturday and Sunday. Other sites are listed on the city's website.
  • Taylor has stations at the Taylor Sportsplex, 13333 Telegraph, 8 a.m.-7 p.m. Saturday and 2-10 p.m. Sunday.
  • Warren has three cooling centers open 9 a.m.–9 p.m. Saturday: the Fitzgerald Center, 4355 E. Nine Mile; the Owen Jax Center, 8207 E. Nine Mile; and the Warren Community Center, 5460 Arden.
  • Dearborn's Ford Community and Performing Arts Center, 15801 Michigan Ave., is open as a cooling center 8 a.m.- 8 p.m. Saturday and 9 a.m.-6 p.m. Sunday.
  • Westland has cooling centers at its police station lobby, 36701 Ford Road, and Fire Station 1, 35710 Central City Parkway, both open 24 hours; Fire Station 3, 28801 Annapolis, 9 a.m.-8 p.m. Saturday; Jefferson Barns Community Vitality Center, 32150 Dorsey, 10 a.m.-2 p.m. Saturday; William P. Faust Public Library, 6123 Central City Parkway, 9 a.m.-5 p.m. Saturday; Westland Friendship Center, 1119 N. Newburgh, 9 a.m.-noon Saturday.
  • Centers in Macomb County include the Clinton-Macomb Main Library, 40900 Romeo Plank Road, Clinton Township, 9 a.m.-6 p.m. Saturday; and the Eastpointe Memorial Library, 15875 Oak, noon-5 p.m. Saturday. A full list is available on the county website.

There is a bit of good news as the heat cranks up: Relief should begin Sunday, when the weather service forecasts a high of 85, and continue through next week, with highs around 80 Monday through Wednesday. 

ecarter@detroitnews.com

Twitter: @EvanJamesCarter

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