You may have smelled smoke Friday and wondered where the fire is. Turns out the source of the smoke may be hours away.

Winds have shifted to the southwest Friday. That means smoke from the large forest fire burning in the Speedwell area of Wythe county as well as the one in the mountains of North Carolina is blowing northeast, toward the New River and Roanoke Valleys.

The fire in Speedwell has spread to more than 500 acres as of Friday afternoon. Meanwhile, the fire in North Carolina has topped 1,800 acres. 

Photos from viewers show the thick haze that has settled in the valleys.

The Department of Environmental Quality website shows the Roanoke Valley in a Moderate level of air pollutants and air quality may be reduced through the weekend.  The smoke is quite thick and potent enough that it may cause problems to those with preexisting respiratory issues.  You may want to stay indoors unless to avoid exposure.

FRIDAY: Smoke blows from the southwest

We anticipate the smoke will stick around through the remainder of the afternoon and into the evening, before rain moves in overnight to wash it out of the atmosphere.

THURSDAY: Smoke blows from the west

We anticipate the smoke will stick around through the remainder of the afternoon and into the evening, before rain moves in overnight to wash it out of the atmosphere.

On Thursday, winds were blowing more from a westerly direction. That meant those living in Floyd, Henry and Patrick counties would have smelled the smoke from the Speedwell fire.