Moderate Extreme Weather ● Active
Special Weather Statement issued October 21 at 3:04AM EDT by NWS Marquette MI, United States of America
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
Available webcams, observations, and satellite imagery show fog
development over parts of eastern Upper Michigan. Areas of dense
fog will reduce visibilities down to 1/4 mile at times. Expect
the areas of dense fog to persist through around 9 AM EDT.
Remember to use low-beam headlights and allow for extra travel
time.
Measurements
| Coordinates | 39.9645, -100.8105 |
|---|---|
| Region | Alger; Luce; Delta; Southern Schoolcraft; Northern Schoolcraft |
| Location Precision | country |
| Issuing Authority | United States of America — us-noaa-nws-en |
| Cap Urgency | Expected |
| Cap Certainty | Observed |
| Cap Expires | 2026-10-21T09:00:00-04:00 |
Official source
Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by WMO Alert Hub (national weather services).
View original reportThis event as JSON · API and licence
Source updated 1 hour ago (Oct 21, 2026 07:06 UTC) · we last heard from WMO Alert Hub (national weather services) 49 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
About this location
The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.
Area as the agency stated it: Alger; Luce; Delta; Southern Schoolcraft; Northern Schoolcraft
Official authorities in United States
If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.
More for United States →What to do
Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.
When thunder roars, go indoors — lightning risk outdoors, in vehicles, and first aid for strike victims.
Open Lightning Safety Guide →Earlier extreme weather events in United States
Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.
Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.