What to expect and when severe weather threatens – NBC Chicago

Don’t be fooled by Tuesday’s warm and dry start, stormy evening Storms are expected to hit Iowa and Missouri by midday in northern and central Illinois.

Here’s a timeline of Tuesday’s forecast and when you should expect a severe weather threat:

Tuesday Afternoon

Much of the region remains warm and dry until midday.

NBC 5 Storm Team meteorologist Alicia Roman said while a few clouds may pass through with an isolated shower, almost the entire area is expected to remain dry by 6 p.m. Tuesday.

Storms moving through Iowa on Tuesday prompted multiple tornado warnings, and a tornado watch was in effect for that state, as well as western Illinois and western Wisconsin.

Tuesday Evening

The real threat for storms moves in Tuesday evening.

“The best chance to see these showers and storms will really move west to east after 7 p.m.,” Roman said, noting that “all weather hazards are possible.”

Strong storms will arrive in the area between 7pm and midnight and will “move quickly through our evening hours,” Roman said.

Storms will move briskly, around 45 to 55 mph, moving out of the western suburbs and into the rest of the Chicago area, with the worst storms possible in the suburbs and along the Illinois-Wisconsin border.

7 in the evening

According to early morning forecasts, storms will start in the western suburbs around 19-20 hours.

9 in the evening

Roman said early forecasts indicated the storms could reach the city limits between 9 and 10 p.m.

at 23.00

Storms are expected to hit southern counties and northwest Indiana late Tuesday.

12 in the morning

The storms are expected to taper off shortly before midnight Wednesday.

What to expect

Roman noted that the system is fast-moving and “definitely capable of striking.”

The entire Chicago area is here “amplified” risk a level three threat out of five threats for severe weather.

Roman said the biggest threat from the storms would be damaging and destructive winds, with gusts up to 75 mph considered a “major threat.”

“But tornadoes are behind it, too,” Roman said. “These possible spin-up, brief tornadoes are possible in the evening. Most of this will be at night when you’re sleeping, so find a way to get an alert on your phone.”

Officials could see more severe winds and a higher tornado threat in areas west of the Chicago area, while areas around the Quad Cities are at a potentially “moderate” risk of severe weather.

The rest of the week

After the storms, temperatures begin to cool with highs in the mid-70s, though the 80s return by the end of the week with another chance for showers.

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