Storms Tuesday; Metro Detroit under flood watch
The National Weather Service has issued a flood watch for much of southeast Michigan as a storm system threatens the region.
The watch is in effect from midnight through noon Tuesday and includes Genesee, Lapeer, St. Clair, Livingston, Oakland, Macomb, Washtenaw and Wayne counties. The heaviest rain is expected between midnight and 6 a.m. Heavy rain could cause significant flooding on Detroit’s expressways, a weather service meteorologist said.
Some areas north of Detroit could see upwards of 2 to 3 inches of rainfall, threatening localized flooding, meteorologist Steven Freitag said.
The flood watch predicts at least 2-3 inches of rain from the Interstate 69 corridor northward.
“Urban and small stream flooding is likely. The risk for basement flooding in susceptible areas is also increased,” the watch read. “Significant rises on main stem rivers are expected but are forecast to remain just below flood stage at this time.”
If the storm system moves south, Detroit’s expressways could see flooding. “Certainly if we get more toward 2 inches or 3 inches, it’s a done deal,” Freitag said. “Some of those roads will be closed.”
The first round of storms will clear up Tuesday; a second round is possible Wednesday, Freitag said.
“But that’s certainly lighter amounts (of rain) if any at all,” he said. “Then we’re clearing out and getting more solidly into the 80s for the high, which I guess you could say is comfortably warm after (recent temperatures) in the 90s with humidity.”
Once the storms clear out, highs Wednesday, Thursday and Friday could hover in the mid-80s — several degrees above average.
Extended forecast for Metro Detroit
Monday afternoon: Slight chance of showers, with thunderstorms possible after 2 p.m. Mostly cloudy, with a high near 79. Chance of precipitation is 20 percent.
Monday night: Chance of showers and thunderstorms, then rain and possibly a thunderstorm after 8 p.m. Some of the storms could produce heavy rainfall. Low around 66. Chance of precipitation is 90 percent.
Tuesday: Rain and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 76. Chance of precipitation is 80 percent.
Tuesday night: Rain likely before 8 p.m. Mostly cloudy, with a low around 63. Chance of precipitation is 60 percent.
Wednesday: Chance of showers and thunderstorms. Partly sunny, with a high near 81. Chance of precipitation is 40 percent.
Wednesday night: Mostly cloudy, with a low around 65.
Thursday: Mostly sunny, with a high near 82.
Thursday night: Partly cloudy, with a low around 65.
Friday: Mostly sunny, with a high near 84.
Friday night: Partly cloudy, with a low around 67.
Source: National Weather Service