Frost Advisory
Status
New Event Active alertStart Time
Wed 05/20/2026 11:00 PM EDTEnd Time
Thu 05/21/2026 09:00 AM EDTSignificance
AdvisoryImpacts
Low impact
Locations Affected
Perronville, MI ∙ Garden, MI ∙ Ramsay, MI ∙ Caspian, MI ∙ Keweenaw Peninsula, MI ∙ Foster City, MI ∙ Ottawa National Forest, MI ∙ Chassell, MI ∙ Mount Horace Greeley, MI ∙ Wallace, MIFull Alert Message
URGENT - WEATHER MESSAGE National Weather Service Marquette MI 157 PM EDT Wed May 20 2026 ...FROST ADVISORY IN EFFECT FROM 11 PM EDT /10 PM CDT/ THIS EVENING TO 9 AM EDT /8 AM CDT/ THURSDAY... * WHAT...Temperatures as low as 28 will result in frost formation. * WHERE...Portions of central Upper and western Upper Michigan. * WHEN...From 11 PM EDT /10 PM CDT/ this evening to 9 AM EDT /8 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.
Technical Header
MIZ001>006-009>014-084-085-211300- /O.NEW.KMQT.FR.Y.0001.260521T0300Z-260521T1300Z/ Keweenaw-Ontonagon-Northern Houghton-Baraga-Marquette-Alger- Gogebic-Iron-Dickinson-Menominee-Delta-Southern Schoolcraft- Southern Houghton-Northern Schoolcraft- Including the cities of L'Anse, Iron River, Copper Harbor, Menominee, Ontonagon, Gladstone, Sidnaw, Munising, Escanaba, Kenton, Marquette, Hancock, Seney, Iron Mountain, Manistique, Gwinn, Grand Marais, Ironwood, and Houghton 157 PM EDT Wed May 20 2026 /1257 PM CDT Wed May 20 2026/
