ABC7 News Meteorologist Drew Tuma explains winds affecting Valley Fire

ABC7 News Meteorologist Drew Tuma says the Valley Fire that sparked in Lake County Saturday is so big that it's actually acting as its own weather system and creating its own winds.

LAKE COUNTY, Calif. (KGO) -- The air quality has been downgraded to poor in Lake County due to the fast-moving Valley Fire. Meteorologist Drew Tuma says the smoke and the ash combination is trending towards that poor and unhealthy air over the fire.

RESOURCES: Valley Fire evacuation centers, school closure information

One of the reasons why crews are having such a hard time containing the fire is because of the chaotic winds. According to Drew, it's such a big fire that it's actually acting as its own weather system and creating its own winds.

There is some encouraging news, however. There are some chances for rainfall mid-week.

Click here for full coverage on the Valley Fire.
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PHOTOS: Fire crews battle 10,000 acre Valley Fire in Lake County

PHOTOS: Fire crews battle Valley Fire in Lake County

Cal Fire says the Valley Fire in Lake County has grown to over 40,000 acres burning homes, shutting down parts of Highway 29 and forcing the evacuation of nearby towns and more than 3,000 people.