The first system is scheduled to arrive Wednesday, producing at least a half-inch of rainfall in most locations along with gusty winds. Thunderstorms will be possible Wednesday evening in the Bay Area.
A brief break in rain is expected Thursday before steady moderate to heavy rainfall will return to the region as early as Friday morning through Friday night, meteorologist Austin Cross said. Wind gusts between 20 and 30 miles per hour, with occasional gusts to 40 miles per hour, are possible Friday into Saturday morning, according to the weather service.
The winds could down power lines as well as trees, and motorists are advised to be aware of possible hazardous driving conditions. Rainfall between the two storms may reach between 4 and 5 inches in the coastal mountains, with 1 to 2 inches elsewhere in the region. Weather analysts say the rain will do little to improve overall drought conditions across the area.