A potent storm that took aim at the Northwest earlier in the week will drop down into California on Wednesday, setting the region up to receive drought-relieving rain and snow — and the rainfall could set records on Christmas Eve.

Increasing amounts of moisture will move onshore on Wednesday, and snow is anticipated to develop across the Sierra Nevada mountain range. This will be the beginning of an extended stretch of wet weather for the Southwest, according to AccuWeather Lead Long-Range Meteorologist Paul Pastelok.

By Wednesday night, heavy rain will drench the California coast as well as the southwestern edge of the Sierra Nevada. San Francisco and San Jose, California, are just two of the cities that will receive needed precipitation. Heavy snow is expected to begin across the Sierra Nevada as well as parts of the Klamath Mountains.