Red Flag Warnings and Fire Weather Watches for enhanced wildfire danger have been issued by the National Weather Service for areas in Idaho, Montana, California, and Oregon. Dry lightning is in the forecast on Monday for northern California.

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The Red Flag Warning map above was current as of 9:40 a.m. MDT on Monday. Red Flag Warnings can change throughout the day as the National Weather Service offices around the country update and revise their forecasts. For the most current data, visit this NWS site.

The map below shows the distribution of wildfire smoke in the United States at 11:04 a.m. MDT August 19, 2013.

Below is the map of the northwest U.S. from Sunday, showing only dense smoke.