Above: Wildfire smoke map August 3, 2016. Weatherunderground.
The National Weather Service has posted Red Flag Warnings for areas in Montana, Wyoming, and South Dakota.
The Red Flag map was current as of 10:40 a.m. MDT on Wednesday. Red Flag Warnings can change throughout the day as the National Weather Service offices around the country update and revise their forecasts and maps. For the most current data visit this NWS site.