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TIMELINE | When and where the atmospheric river storm hits Northern California

Bomb cyclone causing flash flood and high wind concerns.

CALIFORNIA, USA — Flooding concerns continue through Thursday in Northern California.

The bomb cyclone moved onto California's shoreline Wednesday evening, with the Bay Area seeing the brunt of the storm. Intense downpours brought in over an inch of rain in a matter of hours, but the biggest concerns lay with the strong winds and gusts.

As of 10 p.m. Wednesday, gusts ranged from 62 mph at Golden Gate National Recreation Area to 15 mph in Walnut Creek. Meanwhile, in the Valley, 51 mph gusts were reported at McClellan Airfield, 46 mph gusts in Stockton, and 38 mph gusts in Modesto. Outside Arnold, gusts of 71 mph were recorded.

The powerful bomb cyclone, with access to moisture from an atmospheric river, could bring a total of 1-3" of rain by the end of the week. Areas in the foothills may see 3-5" total with the system and gusts near 50 mph as well. As for the Sierra, 1-3 feet of snow are expected with gusty conditions, albeit more calm than in valley and foothill locations.

The brunt of the storm has moved past us but the Thursday commute will be rainy and possibly gusty at times. Watch out for flooded roadways and remember, 'Turn around, don't drown.' There is a chance for thunderstorms Thursday into the afternoon. The Sierra will get mountain snow throughout the day Thursday.

The Winter Storm Warning remains in effect for much of the Sierra through 4 a.m. Friday 

A Flood Advisory in Placer, Amador, El Dorado, Sacramento and Yolo Counties. Heavy rain could cause urban and roadway flooding as well as small-stream flooding.

A Flood Watch is in effect for much of Northern California, including the cities and neighborhoods of Sacramento, Stockton and Modesto through 10 a.m. Friday. 

Thursday 

Thursday will bring waves of isolated showers throughout the day. Winds will start to decrease in the morning hours but could still be gusty at times. Thunderstorms are also possible behind the initial line of rain that passed overnight. Flooding still remains a concern. Most of the rain should have passed by Friday before another storm moves in Saturday. 

WATCH ALSO: Megaflood: Catastrophic flooding in California now twice as likely | To The Point

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