Comfortable weather begins the week in Northern California , but changes are on the way.

Clouds increase and temperatures will dip on Wednesday, with drizzle to light showers and breezy conditions developing by the late evening.

KCRA 3's weather team is calling Thursday an Impact Day because of the forecast for rain, wind and snow.

Current forecast data suggest moderate to heavy rain will move through the region overnight into Thursday morning, changing to snow in the Sierra above 8,000 feet. Snow levels will gradually drop to around 6,000 feet as showers persist through the first half of Friday. Thunder and lightning are possible.

Valley rain totals are expected to range from half an inch to an inch. The Foothills could get more than an inch of rain.

Wind gusts in the Valley could

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