Frosty windshield photo from Flickr user mwkelley.
Some Midwesterners will wake up to the first frost and freeze of the season this week, while others around the northern Great Lakes may witness the first snow flakes of the season.
Drastically colder air is surging into the Midwest behind a cold front, allowing temperatures to plummet by 20-30 degrees.
Clear and calm conditions behind the front will allow for temperatures to drop near and below freezing across eastern portions of the Dakotas, Minnesota, northern Iowa and northwestern Wisconsin early Tuesday morning.
Fargo, N.D., Aberdeen, S.D., International Falls and Duluth, Minn., are among the cities and towns that will have their first frost or freeze of the season.

Any outdoor plants in pots should be brought inside, gardens should be protected and scrapers should be handy for frosty windshields.
On Wednesday morning, colder air will reach even farther south and east. There is potential for a frost as far south as northern portions of Illinois.

With chilly air moving across the very warm water of the northern Great Lakes, a few snow flakes could fly or mix in with rain showers around the Upper Peninsula of Michigan on Tuesday night. According to the National Oceanographic Data Center, water temperatures are still in the lower 60s in Lake Superior.
While no snow accumulations are expected, seeing snow flakes may catch some off-guard so early in the season.
Severe storms are shifting eastward Wednesday afternoon delivering strong wind, heavy rain and hail.
So far this year California has seen 1,569 wildfires, 85 percent more than in an average year.
The Memorial Day weekend will begin cool, windy and rainy in New England and part of the mid-Atlantic.
GOES-East failed again late Tuesday. It is one of the main satellites meteorologists use for the eastern part of the United States and the tropical Atlantic.
On the two-year anniversary of the EF-5 tornado that leveled Joplin, Mo., the town has deployed assistance to Moore, Okla.
The tornado tore through a path 17 miles long on Monday and had wind speeds as high as 200 mph.
| Extreme | Location | |
|---|---|---|
| High | N/A | |
| Low | N/A | |
| Precip | N/A |
Waterville, ME (1832)
Kennebec Flood discharged 140,000 cubic feet
of water per second -- high stage not equalled
until 1901, and not exceeded until 1936.
San Antonio, TX (1998)
Very dry since April 1st - only 0.05 of rain.
New Brunswick, NJ (1804)
Tornado destroyed 2 barns, 1 hotel and 3
houses. "The damage done in this village
cannot be less than $1,500 or $2,000." New
York Evening Post, June 5, 1904.
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