(NVR) - The first of two storms soaked Napa County and the Bay Area, dumped fresh snow in the Sierra Nevada and brought a high tide Sunday that had the potential of flooding some coastal areas.

Strong rainfall first reached the North Bay Sunday afternoon. The area was expected to receive up to 2.5 inches of rainfall before the storm spreads farther inland, said Roger Gass, a forecaster with the National Weather Service.

In Napa, just over an inch of rain was expected to fall through Monday morning, according to the National Weather Service. The city opened a sandbag station Sunday afternoon outside Memorial Stadium.

The Sierra Nevada was forecast to get up to 10 inches of new snow in the highest points, Gass said.

Heavy rain could lead to localized flooding of roadways, especially along the coast. A flash flood watch was in effect for some parts of the North Bay through 4 a.m. Monday, the National Weather Service said.

Rainfall was expected to taper off by Monday morning but a second rainstorm is expected to make landfall Monday night and Tuesday, Gass said.

“There will be a few lingering showers across the region Monday morning but most conditions will become dry by the afternoon,” he said