Frost Advisory
URGENT - WEATHER MESSAGE
National Weather Service Duluth MN
311 AM CDT Wed May 21 2025
MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-212115-
/O.NEW.KDLH.FR.Y.0002.250522T0600Z-250522T1400Z/
Koochiching-North St. Louis-Northern Cook and Lake-North Itasca-
Central St. Louis-Southern Lake-Southern Cook-North Cass-South
Itasca-South Cass-Crow Wing-Northern Aitkin-South Aitkin-Carlton
and South St. Louis-Pine-Douglas-Bayfield-Ashland-Iron-Burnett-
Washburn-Sawyer-Price-
Including the cities of Walker, Hibbing, International Falls,
Grantsburg, Hurley, Grand Rapids, Hinckley, Hayward, Hill City,
Two Harbors, Silver Bay, Aitkin, Bigfork, Spooner, Pine City,
Ashland, Duluth, Bayfield, Pine River, Grand Marais, Ely,
Superior, Washburn, Isabella, Phillips, and Brainerd
311 AM CDT Wed May 21 2025
...FROST ADVISORY IN EFFECT FROM 1 AM TO 9 AM CDT THURSDAY...
* WHAT...Temperatures as low as 31 will result in frost formation.
* WHERE...In Minnesota, Crow Wing, Aitkin, Pine, Koochiching, Cass,
Itasca, Carlton, St. Louis, Cook and Lake Counties. In Wisconsin,
Price, Ashland, Bayfield, Burnett, Douglas, Iron, Sawyer, and
Washburn Counties. This includes the Tribal Lands of the
northwestern area of the Lac du Flambeau Band, the Fond du Lac
Band, the Grand Portage Reservation, the Red Cliff Band, the Lac
Courte Oreilles Reservation, the St. Croix Band in Burnett County,
the Bad River Reservation, the Mille Lacs Band, and the Bois Forte
Band. Other locations including Voyageurs National Park, the
Apostle Islands National Lakeshore and Madeline Island. The entire
Boundary Waters is also included.
* WHEN...From 1 AM to 9 AM CDT Thursday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Take steps now to protect tender plants from the cold.
&&
$$
For more information on Northland weather, visit www.weather.
gov/duluth
HA
Hazardous Weather Outlook
Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1108 AM CDT Wed May 21 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-221615-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1108 AM CDT Wed May 21 2025 /1208 PM EDT Wed May 21 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...This Afternoon and Tonight.
Weather hazards expected...
High Swim Risk particularly Indiana Lake Michigan Beaches
tonight.
DISCUSSION...
Building waves will result in dangerous swimming conditions
tonight, especially at Indiana Lake Michigan beaches.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
Thursday...
High Swim Risk particularly Indiana Lake Michigan Beaches.
DISCUSSION...
Dangerous swimming conditions will continue through Thursday
evening, particularly at Indiana Lake Michigan Beaches.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
$$
Hazardous Weather Outlook
National Weather Service Green Bay WI
958 AM CDT Wed May 21 2025
WIZ005-010>013-018>022-030-031-035>040-045-048>050-073-074-221500-
Vilas-Oneida-Forest-Florence-Northern Marinette County-Lincoln-
Langlade-Menominee-Northern Oconto County-Door-Marathon-Shawano-
Wood-Portage-Waupaca-Outagamie-Brown-Kewaunee-Waushara-Winnebago-
Calumet-Manitowoc-Southern Marinette County-
Southern Oconto County-
958 AM CDT Wed May 21 2025
This Hazardous Weather Outlook is for north-central and northeast
Wisconsin.
.DAY ONE...This Afternoon and Tonight
Gusty northeast winds and high waves will create conditions
favorable for rip currents on Lake Michigan beaches. A Beach
Hazard Statement has been issued through 7 pm.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
Hazardous Weather Outlook
National Weather Service Duluth MN
353 AM CDT Wed May 21 2025
MNZ010>012-018>021-025-026-033>038-WIZ001>004-006>009-220900-
Koochiching-North St. Louis-Northern Cook/Northern Lake-
North Itasca-Central St. Louis-Southern Lake/North Shore-
Southern Cook/North Shore-North Cass-South Itasca-South Cass-
Crow Wing-Northern Aitkin-South Aitkin-Carlton/South St. Louis-
Pine-Douglas-Bayfield-Ashland-Iron-Burnett-Washburn-Sawyer-Price-
353 AM CDT Wed May 21 2025
This Hazardous Weather Outlook is for portions of northeast
Minnesota and northwest Wisconsin.
.DAY ONE...Today and Tonight
Near-critical fire weather conditions are possible in northern
Minnesota today north of a line from Sea Gull Lake to Ely to
Blackduck due to a combination of low relative humidity and gusty
winds. This includes Cook, Orr, Bigfork, and International Falls.
Strong northeast winds will create a high risk of rip currents
today through this evening for areas near the Twin Ports,
including the beaches of Duluth and Superior. A Beach Hazards
Statement has been issued for these areas.
Low temperatures tonight of 32 to 37 degrees with clearing skies
and light winds may allow frost to develop, which may damage
sensitive outdoor plants. A Frost Advisory in effect overnight.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
There is a potential for areas of frost Friday, Saturday, and
Sunday mornings.
.SPOTTER INFORMATION STATEMENT...
Skywarn spotter activation will not be needed today or tonight.
$$
Hazardous Weather Outlook
National Weather Service Twin Cities/Chanhassen MN
330 AM CDT Wed May 21 2025
MNZ041>045-047>070-073>078-082>085-091>093-WIZ014>016-023>028-
220830-
Douglas-Todd-Morrison-Mille Lacs-Kanabec-Stevens-Pope-Stearns-
Benton-Sherburne-Isanti-Chisago-Lac Qui Parle-Swift-Chippewa-
Kandiyohi-Meeker-Wright-Hennepin-Anoka-Ramsey-Washington-
Yellow Medicine-Renville-McLeod-Sibley-Carver-Scott-Dakota-
Redwood-Brown-Nicollet-Le Sueur-Rice-Goodhue-Watonwan-Blue Earth-
Waseca-Steele-Martin-Faribault-Freeborn-Polk-Barron-Rusk-
St. Croix-Pierce-Dunn-Pepin-Eau Claire-
330 AM CDT Wed May 21 2025
This Hazardous Weather Outlook is for portions of central and
southern Minnesota, and west central Wisconsin.
.DAY ONE...Today and Tonight.
Continued persistent light rain may produce areas of ponding
water in fields and low-lying areas.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
SKYWARN spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Milwaukee/Sullivan WI
302 AM CDT Wed May 21 2025
WIZ046-047-051-052-056>060-062>072-220815-
Marquette-Green Lake-Fond du Lac-Sheboygan-Sauk-Columbia-Dodge-
Washington-Ozaukee-Iowa-Dane-Jefferson-Waukesha-Milwaukee-
Lafayette-Green-Rock-Walworth-Racine-Kenosha-
302 AM CDT Wed May 21 2025
This Hazardous Weather Outlook is for portions of east central
Wisconsin, south central Wisconsin and southeast Wisconsin.
.DAY ONE...Today and Tonight
A high swimming risk continues at all Lake Michigan beaches
through this evening.
.DAYS TWO THROUGH SEVEN...Thursday through Tuesday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
