Chris Izworski

Up North Michigan: what to check before you go

The reads I actually run before loading the truck, on one screen. Each one links to the tool behind it.

Loading current conditions.

Northern lights

checking

Reading the NOAA forecast.

Fall color

checking

Reading the regional model.

Mackinac Bridge

checking

Reading bridge conditions.

Great Lakes water

checking

Reading the buoys.

Ice

checking

Reading accumulated cold.

Every line above is read live at page load. Nothing here is cached from a previous visit, and nothing is a substitute for the forecast on the day you travel.

What this page is, and what it is not

This is the short version of five tools on this site, pulled onto one screen so a trip north can be decided in about ten seconds rather than five tabs. Each card carries the live number and a link to the tool that produced it, because the tool has the detail this page deliberately leaves out: the region breakdowns, the thresholds, the cameras and the honest limits on each.

It is not a weather forecast and does not try to be. For the actual forecast where you are going, use the National Weather Service. What this page adds is the specific stuff a general forecast will never tell you: whether the aurora is likely to be worth the drive tonight, which of eight color regions is at peak this week, whether the bridge is under a wind advisory for high-profile vehicles, and what the water is doing on the lake you are heading to.

Common questions

What should I check before driving up north in Michigan?

Five things, in the order they can ruin or make a trip. First, the Mackinac Bridge, because a wind advisory changes whether a trailer or high-profile vehicle should cross at all, and that decision has to be made before you leave, not at the toll plaza. Second, whatever you are actually going for: aurora odds if it is a dark-sky trip, or color stage by region if it is October. Third, water conditions if a boat or a beach is involved, because a strong onshore wind ends a paddling day before it starts. Fourth, in winter, accumulated cold rather than any single cold night. Fifth, the plain weather forecast for the town you are staying in. This page covers the first four; the National Weather Service covers the fifth better than anyone.

When should I check, and how far ahead is it worth trusting?

It depends entirely on which reading. Aurora forecasting is reliable about one to three days out, so a weekend read taken on Monday is close to guesswork and one taken Thursday is worth acting on. Fall color moves on a season-long curve and its regional windows are stable enough to plan a month ahead, then confirm the week you travel. Bridge wind advisories are issued and lifted within hours, so check that one the morning you drive, not the night before. Ice depends on accumulated cold over weeks rather than any single night, so the trend matters more than today's figure. The general rule: the faster a thing changes, the later you should look at it.

Live readings on this page come from NOAA Space Weather Prediction Center, the National Weather Service, NOAA NDBC buoys, the Mackinac Bridge Authority, NOAA Great Lakes ice analysis and MODIS satellite vegetation data, through the tools linked in each card.