The next system in a series of powerhouse storms will slam onshore Sunday into Sunday night.
Very heavy snow will impact northern California with another 1-2 feet likely Sunday and Sunday night. This will bring snow totals for this event up to 2-4 feet of snow across Mount Shasta City, Dunsmuir, McCloud and Tennant.
Portions of Interstate 5 near Mount Shasta City and Highway 89 near Snowman's Summit will likely be impassable at times due to the snow later Sunday into Sunday night.
This image, courtesy of the California Department of Transportation, shows the road is snow-packed and dangerous early Sunday morning near Snowman's Summit.
The snow will also have severe impacts east of the Cascades on Highways 140 and 97.
Strong, gusty winds of 40-60 mph will cause blowing and drifting snow, which will significantly limit visibility.
Several inches of snow are also expected in the Coastal Range and Northeast Foothills.
The heavy, wet snow will likely cake on many surfaces, and combined with the wind, power outages will also result.
If you will be traveling through the region, be prepared for the extreme winter weather.
Have food, water, blankets and warm clothes ready in case you get stranded. You should also be sure to carry chains and practice putting them on your vehicle before heading out.
It will be wetter, rather than whiter, for the lower elevations. Areas from Santa Maria north to Santa Cruz, San Francisco and Eureka will see 1-4 inches of rainfall and localized flooding.
Stay with AccuWeather.com for up-to-the-minute information on this dangerous storm.
While rain will slice through portions of the Midwest and Northeast this week, it will interrupt the stretch of dry weather in store for most locations only briefly.
While waters will be slow to recede across flood-ravaged South Carolina, a stretch of dry weather will provide favorable conditions for cleanup efforts across the region.
One potential path for Joaquin will have the post-tropical cyclone reaching Ireland as early as Saturday.
Joaquin remains on track to make Europe its final destination with a part of the British Isles and western Europe first facing potential impacts this weekend.
The next round of rain for the Washington, D.C., and Baltimore areas will be at the end of the week into the start of the weekend.
Despite Hurricane Oho not making landfall across Hawaii, rough surf will rattle the islands into Friday.
New England (1962)
Hurricane Daisy produced heavy rains; Reading, MA received 12.10 inches from 5-7th; floods and tide damage in eastern New England/Nova Scotia.
Puerto Rico (1970)
Floods caused "most widespread natural disaster in recent years". A total of 38.42 inches of rain fell in 6 days, causing $62 million damage; 18 people were killed.
Seattle, WA (1981)
Four inches of rain in 24 hours, a record for the city.