MileCheckAre there high wind warnings for trucks on my route?
Check two places. The National Weather Service issues wind advisories and high wind warnings by area at weather.gov. The state DOT posts any road restriction, such as a closure to light, high-profile vehicles, on its 511.
Warnings and restrictions are different
A National Weather Service warning says the wind is forecast to be strong. It does not close a road. A DOT restriction does. Wyoming, for example, closes stretches of I-80 to light, high-profile vehicles in high wind. See why I-80 closes in Wyoming.
What MileCheck shows
When you are moving, the Mile screen compares the forecast wind with your heading. If the side-on part of the wind reaches 20 mph, a banner says CROSSWIND with the speed. It changes color at 30 and 40 mph. A tailwind doesn't trigger it, because it doesn't push a trailer sideways.
The banner uses the National Weather Service forecast for your location. It is a heads-up, not a restriction and not a safety call. DOT wind closures show in the Alerts tab when the state posts them.
See your mile marker as you drive
MileCheck shows your nearest mile marker, the highway and your direction. Premium adds live state DOT feeds for the road ahead and the map, with a 2-week free trial. It runs on CarPlay and Android Auto.
Questions, answered
What wind speed is a high wind warning?
It depends on the National Weather Service office and the area. The criteria are set locally, so read the warning text for the numbers.
Does the crosswind banner work when I'm parked?
No. It needs a GPS heading, so it appears when you are moving faster than about 5 mph.