CALISTOGA -- The entire city of Calistoga was put under a mandatory evacuation order Wednesday as fire conditions worsened.
Residents were told to leave the city by Highway 29 south either by the Silverado Trail or by Zinfandel Lane, then west to the highway.
An evacuation shelter was opened at American Canyon High School.
Residents were told to leave no later than 5 p.m.
By Wednesday evening, all that was left in Calistoga was emergency crews keeping a close eye on the destructive Tubbs Fire and last minute evacuees running from the flames.
"Right now up on the hills in the middle of the hills you can see the fire in the front of my store it's scary right now," said Calistoga business owner Surinder Singh.
Earlier, officials went through the town of 5,000 people, knocking on doors to warn about 2,000 of them to leave.
Dangerous gusty winds and low moisture were forecast to reach the region Wednesday afternoon, fanning already raging wildfires.
Authorities say unpredictable weather conditions could bring the fire into the city destroying more than it already has. A drive down highway 128 shows the corpses of homes left behind.
In neighboring Sonoma County, authorities issued an evacuation advisory for the northern part of the town of Sonoma and the community of Boyes Hot Springs. By then, lines of cars were already fleeing the community.