Active Weather Alerts
Small Craft Advisory
Issued: 8:08 PM May. 21, 2026 – National Weather Service
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM FRIDAY TO 5 AM EDT SUNDAY... * WHAT...Highest gusts up to 30 kts from the east and highest waves around 10 feet expected. * WHERE...St Ignace to False Detour Channel, 5NM East of Mackinac Bridge to Presque Isle Light MI including Bois Blanc Island, Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary and Sturgeon Pt to Alabaster MI. * WHEN...From 2 PM Friday to 5 AM EDT Sunday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. &&
Frost Advisory
Issued: 7:20 PM May. 21, 2026 – National Weather Service
...FROST ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT FRIDAY... * WHAT...Temperatures of 32 to 34 degrees will result in frost formation. Localized pockets of temperatures below 30 degrees are possible. * WHERE...Portions of Eastern Upper and Northern Lower Michigan. * WHEN...From midnight tonight to 8 AM EDT Friday. * IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive outdoor plants may be killed if left uncovered. * ADDITIONAL DETAILS...Where winds become light overnight, a near-surface temperature inversion is possible. Temperature inversions are less likely across northwest Lower Michigan, where winds are expected to stay breezy through the night. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. &&
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