The Daily Weather Update from FOX Weather: Pneumonia front takes aim at Chicago, Milwaukee Tuesday

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'Pneumonia front' to hit Great Lakes causing temperatures to dramatically plunge

A 'pneumonia front' is expected to hit Chicago and Milwaukee on Tuesday, plunging temperatures by over 20 degrees in a matter of minutes.

Welcome to the Daily Weather Update from FOX Weather. It’s Tuesday, May 16, 2023. Start your day the right way with everything you need to know about today's weather. You can also get a quick briefing of national, regional and local weather whenever you like with the FOX Weather Update podcast.

'Pneumonia front' to hit Chicago, Milwaukee on Tuesday

Temperatures are expected to drop drastically Tuesday in Milwaukee and Chicago as a "pneumonia front" slides through the Great Lakes region. 

The term pneumonia front means a dramatic temperature plunge for cities along the western shores of Lake Michigan. As the cold front pushes south across Lake Michigan, it'll pull in the lake's chilly waters and push that lake-cooled air into eastern portions of Illinois and Wisconsin.

A "pneumonia front" will cause temperatures to drop rapidly in portions of Illinois and Wisconsin on Tuesday, May 16, 2023.

(FOX Weather)

Severe storms with damaging winds, tornadoes threaten Appalachians and mid-Atlantic

An active weather day is in store from the central and southern Appalachians into parts of the mid-Atlantic, as severe storms will bring threats of damaging winds, large hail and a few tornadoes.

The relentless rain that has been plaguing the central U.S. over the past week will also shift east on Tuesday, posing a risk of flash flooding in the Ohio Valley and Appalachians.

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Warmer weather spells problems as ice, snow melt

Runoff due to warming temperatures combined with an above-average snowpack is causing water levels to rise on many rivers, resulting in a 90-mile-long ice jam in rural Alaska.

Alaska Gov. Mike Dunleavy declared a disaster in several towns because of ongoing flooding along the Yukon River caused by the massive ice jam.

In Washington, 12 people and a dog were rescued after a mudslide washed away a large section of highway leading to and from Mount St. Helens.

Photos from the scene showed copious amounts of mud, rocks and other debris that destroyed the roadway, stranding the drivers overnight.

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Twelve people, dog rescued near Mount St. Helens after mudslide

Twelve people and one dog were airlifted after a mudslide wiped out a bridge to an observatory near Mount St. Helens in Washington State. 

And in Utah, one person was killed and another was injured after rocks gave way while the pair was climbing in Big Cottonwood Canyon on Friday. 

"Due to the wet, cool winter and spring this season, people need to be hyper-aware for the potential of loose rock even in well-traveled areas," deputies said Friday. "Along with this risk, we will see snow on the trails well into the summer and cold fast-flowing creeks."

Salt Lake County Sheriff's Search and Rescue were called out to Utah's Big Cottonwood Canyon after one person was killed and another were injured while rock climbing. 

(Salt Lake County Sheriff's Search and Rescue / FOX Weather)

Bonus reads

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