Live · updated 1 min ago
1 active alert for Keweenaw County, Michigan right now: a Dense Fog Advisory.
4 in the last 30 days 7 in 12 months (since Aug 30) most common: Special Weather Statement Get alerts on your phone →
Refreshed every few minutes; times in EDT.
Area: Keweenaw; Houghton
* WHAT...Visibility 1/4 mile or less in dense fog. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...Until 10 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
What it means: Visibility of a quarter mile or less is expected. Slow down and use low beams.
Full alert with map and forecast →Forecast Bar watches the official alert feeds around the clock, NWS in the United States and Environment Canada in Canada, and pushes every warning, watch and advisory for your saved locations the moment it is issued. This page is the same data, a few minutes later.
Where
Alert polygons are NWS's own. Forecast Bar's radar shows the same warnings over live precipitation, with future radar and lightning. See the radar.
Last 30 days
| Alert | Issued | Ended | Issued by |
|---|---|---|---|
| Special Weather Statement | Oct 10, 5:47 PM | Oct 11, 6:00 PM | Marquette MI |
| Special Weather Statement | Oct 9, 2:49 PM | Oct 10, 5:00 PM | Marquette MI |
| Special Weather Statement | Sep 26, 5:59 AM | Sep 26, 8:00 AM | Marquette MI |
Pattern
Every alert that named Keweenaw County in the last 12 months, by type. Records begin August 30, 2026, so this fills in over the year.
Plain English
A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.
Visibility of a quarter mile or less is expected. Slow down and use low beams.
A heads-up about conditions that do not meet warning or advisory criteria but still deserve attention, such as a strong storm, patchy fog or a brief burst of snow.
Sustained winds of 30 mph or more, or gusts to 45 mph, are expected. Use caution driving high-profile vehicles.
Nearby
Neighbouring counties in Michigan
Questions
Install Forecast Bar, add Keweenaw County as a location, and turn on severe weather alerts. Every NWS warning, watch and advisory for Keweenaw County then arrives as a push notification at the moment of issue, with Critical Alerts available for the most dangerous warnings. Forecast Bar also runs on iPad, Apple Watch, Mac and Apple TV.
From the National Weather Service alert feed (api.weather.gov). NWS issues alerts by county and by forecast zone; this page lists every product that names Keweenaw County. Forecast Bar checks the feed continuously and this page refreshes within a few minutes of a change.
A warning means the hazard is occurring, imminent or very likely: act now. A watch means conditions are favourable for it to develop: prepare and stay informed. An advisory covers a hazard that is less serious than a warning but can still cause real inconvenience or danger if you are not ready for it.
Yes. /weather-alerts/mi/keweenaw-county.json returns the active alerts, the last 30 days and the 12-month counts for Keweenaw County, refreshed every minute. Please cache responses and credit National Weather Service as the source.
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