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New Storm to Bring West More Snow Early Week Before Spreading Toward the Midwest and East Late-Week
Published: February 11, 2019
Another Cross-Country Storm
A new storm system will approach the West Coast on Monday, bringing more snow to the Pacific Northwest before spreading toward California, the Intermountain West, Midwest and East with snow and rain later in the week ahead.
There will be a sharp southward plunge of the jet stream setting up adjacent to the West Coast in the first half of this week. We expect this to produce another round of snow in low elevations of the Pacific Northwest. Unlike Winter Storm Maya last week, this next storm will draw in milder air allowing snow to mix with rain in the Seattle area, but poor travel conditions are still likely there on Monday.
The jet-stream energy will then slide through the West and into the Midwest during the latter half of the week, spreading more wintry weather through the nation's northern tier.
Winter storm warnings, winter storm watches and winter weather advisories have been issued by the National Weather Service from the Northwest into the Sierra Nevada of California.
Winter Weather Alerts
Here's what to expect from the next cross-country storm.
- Portions of west-central Washington, including Seattle, will see snow Monday afternoon and evening. Seattle may pick up 1 to 4 inches of snow into Monday evening, but that forecast is still uncertain since it depends on how quickly any changeover to rain occurs. Expect poor travel conditions in the afternoon and evening hours.
- Heavier snow totals topping 4 inches are possible north of Seattle toward Everett.
- The Cascades will likely see 1 to 3 feet of snow, including Interstate 90 through Snoqualmie Pass, Washington.
- Portland, Oregon, and the rest of the Willamette Valley will see rain from this next storm Monday and Tuesday.
- Interior areas of the Northwest, including Spokane, Washington, will also see several inches of additional snow early this week.
Additional Snowfall Forecast
- The storm system will slide farther south and eastward by Tuesday night into Wednesday.
- Another round of heavy snow will impact the Sierra Nevada, but snow levels will likely rise as the storm draws in warmer air, possibly as high as 7,000 feet by Wednesday afternoon.
- Moderate to heavy rain is possible in the lower elevations of California, including San Francisco and Los Angeles.
- Strong winds will accompany the storm in parts of California.
- Snow will also impact parts of the Intermountain West.
How Much Rain and Snow?
- Several feet of additional snow will bury the Sierra Nevada, particularly above 7,000 feet in elevation, from late Tuesday through Thursday.
- The snow and strong winds could cause tree damage and power outages.
- California's lower elevations could see 1 to 3 inches of rain late Tuesday through Thursday. Foothill locations may see higher totals over 3 inches.
- Rivers and streams are likely to rise in parts of California from the combination of rain and melting snow.
Rain and Snow Forecast
Midwest and East Forecast
- Snow will begin to spread toward the northern Plains and upper Midwest on Thursday.
- An intensifying area of low pressure may cause snow and wind to increase over parts of the Plains and Midwest on Thursday night.
- Snow or rain changing to snow and gusty winds could affect parts of the Midwest and Great Lakes. That said, the details of this will likely change in the days ahead depending on the future track of the storm.
- In the Northeast, snow could impact parts of northern New England while rain soaks the Interstate 95 corridor.
- Since this part of the storm is still several days away, it's too early to pinpoint any snowfall totals for the Midwest and Northeast.
- The storm may linger in parts of the East into next Saturday.
Check back with weather.com for additional updates and details in the days ahead.
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