The smell of smoke was strong in the valley Monday because of several fires burning across Northern California.

Strong winds and dry conditions overnight made several fires spread faster than normal. Winds were blowing northeast between 20 and 40 mph, with gusts up to 55 mph.

However, firefighters got a bit of break from the winds Tuesday but the dangerously dry North winds return Wednesday, said ABC10's Chief Meteorologist Monica Woods. This will bring a renewed risk of rapid fire spread and the Red Flag Warning goes back into effect at 11 a.m. Wednesday.

Air quality has been the worst along the coast with thick concentrations of smoke. There is also a light flow toward the valley and it’s not especially strong so there is some smoke, but not too thick currently in the valley.

The wind shift Wednesday will pull more smoke south of the first and into the valley.

Map of fires burning in California

Photos: Napa area fires, Cascade Fire

List of road and school closures

The smoke from the fires will likely continue to hover over the valley, but air quality conditions are currently sitting at moderate.