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More storms, strong winds, possible hail forecast for Metro Detroit Thursday evening

Portrait of Charles E. Ramirez Charles E. Ramirez
The Detroit News

Storms are taking aim again at Metro Detroit on Thursday afternoon, even as communities clean up from Wednesday's powerful winds and rain.

Detroit, Dearborn and Livonia are under a severe thunderstorm warning until 5 p.m. The weather service issued a marine warning for the Detroit River until 5:15 p.m., with pea-size hail and winds greater than 34 knots possible.

The National Weather Service issued a flash flood warning until 8:15 p.m. for southwest Macomb County, southeast Oakland County and north central Wayne County.

The weather service reported flash flooding in Royal Oak at 4 p.m. with 1 to 3 inches of rain and up to another inch possible. The weather service warned drivers to turn around if they encounter flooded roads.

power was out for 34,354 customers shortly before 4:45 p.m. DTE said it has workers from Ohio, Illinois and Indiana to help restore power. The company estimated 75% of customers affected would have their power restored by the end of the day.

"We know how challenging it is to be without power, particularly in this heat," DTE's storm alert said.

Around the same time, 1,365 people without power.

After temperatures hovered in the 90s, thunderstorms raked across southeast Michigan Wednesday night, downing power lines and toppling trees.

This tree on Locherbie Avenue in Beverly Hills, Mich. was uprooted by last night's storm.

Metro Detroit's forecast for Thursday, the official first day of summer, came with a triple threat.

Meteorologists with the weather service office in White Lake Township issued a heat advisory and a hazardous weather outlook for Thursday. The Michigan Department of Environment, Great Lakes, and Energy declared an air quality advisory.

The heat advisory is in effect until 10 p.m. and covers Lenawee, Livingston, Macomb, Monroe, Oakland, Washtenaw, and Wayne counties. The advisory means the heat index values may peak in the mid-to upper-90s in those areas and could trigger heat-related illnesses.

Detroit's temperature was expected to reach a high of 90 on Thursday, according to the weather service.

Cooler conditions are expected across the Thumb region and near Lake Huron but the weather service issued a hazardous weather outlook because thunderstorms are possible. It said the strongest storms could produce wind gusts to 58 mph.

The weather service said the storms were expected to move northeast at about 23 mph. The storms could bring torrential rain.

Meteorologists said scattered thunderstorms are possible through Saturday. Officials said strong wind gusts, torrential rainfall and localized flooding were the main concerns.

State officials are alerting to elevated levels of ozone and pollutants in the air Thursday, making it unhealthy for sensitive groups. They issued an advisory for Livingston, Macomb, Monroe, Oakland, St. Clair, Washtenaw and Wayne counties.

"Temperatures hanging around the 90s with high humidity will be coupled with relatively stagnant winds and allow for Ozone concentrations to exceed USG levels," said Alec Kownacki, a meteorologist for the Michigan Department of Environment, Great Lakes, and Energy, in a statement Wednesday.

The Southeast Michigan Council of Governments said Thursday is the fourth air quality advisory for southeast Michigan issued this season.

"The combination of heat and reduced air quality is particularly harmful to vulnerable populations, and we encourage all residents to stay hydrated and avoid strenuous activities," Amy O'Leary, SEMCOG's executive director, said in a statement.

Extended Detroit forecast

Friday: Mostly Sunny; high 90, low 72

Saturday: Mostly sunny; high 93, low 75

Sunday: Partly sunny; high 90, low 66

Monday: Sunny; high 86, low 65

Tuesday: Mostly sunny; high 90, low 71

Wednesday: Mostly sunny; high 89

Source: National Weather Service

cramirez@detroitnews.com

@CharlesERamirez