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A late-season Pacific trough is dropping operational Winter Storm Warnings across southern Wyoming and Winter Storm Watches across the Colorado high country today, Sunday May 17, 2026, with up to 2 feet of snow forecast for the Snowy Range and gusts to 40 mph stacking against the I-80 Summit between Cheyenne and Laramie. NWS Cheyenne upgraded its Watches to Warnings at 150 AM MDT this morning, and NWS Boulder is expected to follow with operational Warning text for the Colorado high country befor

A late-season Sierra Nevada winter storm is taking aim at California today, Friday May 1, 2026, with the Weather Prediction Center flagging significant snow Sunday night through Tuesday as a Pacific low ejects onshore and drives moisture more than 90 percent above seasonal norms into the high country. Peak Driving Danger Window Sunday night through Tuesday morning across I-80, Highway 50, and Highway 395, when snow levels crash from 7,000 feet to as low as 4,500 feet and overnight ice forms on l

A Pacific cold storm hammering the Sierra Nevada is in its peak phase today, Monday, May 4, 2026, with the Weather Prediction Center flagging both today and Tuesday at HIGH heavy snow risk, the top of the four-tier scale, a notable upgrade from the original outlook. The same upper-level low then reloads over the Colorado Rockies for a second-act event Tuesday into Wednesday, extending the impact zone from the Northern Sierra all the way to the I-70 corridor west of Denver. Peak Driving Danger Wi

A Winter Storm Warning for central and southwestern Montana is probably coming before the storm hits Wednesday evening, with forecasters in the National Weather Service office in Great Falls signaling a likely upgrade as the system approaches. The current Winter Storm Watch remains in effect for the high mountain zones, alongside a Winter Weather Advisory covering West Yellowstone and the tri-border area with Idaho and Wyoming. The system is expected to bring up to 10 inches of heavy wet snow to

The Sierra Nevada storm originally reported by Autoblog on Friday has escalated significantly. What started as a Winter Storm Warning for Mono County and the Donner Pass area has expanded into warnings covering every major mountain corridor in California, from Lassen County south through Yosemite, Kings Canyon, and Sequoia National Parks. Snowfall totals have been revised sharply upward. Wind forecasts have increased. And the worst of it is arriving now. What Has Changed The original forecast ca

Up to two feet of snow and temperatures plunging 25 degrees below the mid-April average are slamming 11 western and northern states today, Friday April 17, 2026, as a late-season "cold storm" presses from the Cascades and Northern Rockies into Colorado and the Northern Plains. The Weather Prediction Center is headlining late-season snow for the Northern Rockies, Central Rockies, and Northern Plains, with mountain passes from Washington and Oregon east through Idaho, Montana, Utah, Wyoming, and C

Up to two feet of snow and temperatures plunging 25 degrees below the mid-April average are slamming 11 western and northern states today, Friday April 17, 2026, as a late-season "cold storm" presses from the Cascades and Northern Rockies into Colorado and the Northern Plains. The Weather Prediction Center is headlining late-season snow for the Northern Rockies, Central Rockies, and Northern Plains, with mountain passes from Washington and Oregon east through Idaho, Montana, Utah, Wyoming, and C

UPDATE, Saturday, April 18, 2026, 9 AM MDT: The system delivered up to 6 inches across the Colorado foothills overnight, with Denver International Airport officially recording 3.5 inches, the city's first snowfall in more than a month. A hard freeze is now hitting the Front Range Saturday morning, with temperatures dropping into the 20s across Cheyenne, Denver, and Colorado Springs. -- Up to two feet of snow and temperatures plunging 25 degrees below the mid-April average are slamming 11 western

The Northern Plains and Pacific Northwest are bracing for a brutal stretch of winter weather that will make highway travel exceedingly dangerous, if not impossible, over the next 48 hours. Two powerful storm systems are lining up to hammer the northern tier of the United States through Saturday, and the National Weather Service is urging drivers to seriously reconsider any travel plans. Extreme Winds Hit First The first system is already generating extreme conditions. According to the Storm Pre

A powerful Pacific storm is set to slam Southwest Alaska this weekend with hurricane-force wind gusts, heavy snow, and freezing rain through Sunday morning, according to NWS Anchorage. The agency issued overlapping High Wind Warnings and Winter Weather Advisories today, Friday May 8, 2026, with officials explicitly warning of slick roads and difficult travel. Peak Driving Danger Window The most dangerous window runs late Saturday night through Sunday morning, when 90 mph gusts in the Alaska Peni

Storm Continues Through Tuesday The Pacific system that pounded the coast this weekend is not finished. Heading into Monday, the National Weather Service in Anchorage confirms the original storm is still spinning, while a second cyclone closes in from the west. Forecasters expect another 24 to 48 hours of mountain snow, heavy coastal rain, and gusty winds. In the discussion issued at 4:11 PM AKDT Sunday, forecasters describe "a large, negatively tilted upper level low" continuing to rotate acros

A powerful Pacific storm system is slamming the Sierra Nevada right now, and conditions on California's mountain highways are about to get significantly worse. The National Weather Service has Winter Storm Warnings active from Lassen County south through Yosemite, Kings Canyon and Sequoia National Parks, with watches also covering Mono County and the greater Lake Tahoe region. The warnings run from 2 AM Tuesday through 5 PM Wednesday, and this is not a system to try to outrun. The Storm A mid-le

A Treacherous Commute Ahead The Western United States is bracing for a severe weather shift as a powerful Pacific storm system pushes inland. With Winter Storm Warnings now active across multiple states, drivers navigating high elevation routes are facing a formidable combination of heavy snow and high winds. Forecasts indicate that up to 20 inches of snow could bury key mountain passes, making travel over the next few days exceedingly dangerous, if not entirely impossible. High Winds and Whiteo

If you are planning to drive anywhere between the Rockies and the Great Lakes this Easter weekend, read this first. The National Weather Service has Winter Storm Warnings active across 12 states, and what should worry you is not the snow totals on their own. It is when those totals arrive. Two systems are stacking back-to-back, and the second drops its heaviest load Friday night into Saturday morning. That is peak Easter travel. Then it refreezes into Sunday, and roads that looked wet Saturday e

Bomb Cyclone Targeting the Upper Midwest The National Weather Service has issued Blizzard Warnings across seven states as one of the most significant late-season winter storms in years deepens rapidly and churns toward the Great Lakes. This system has the characteristics of a bomb cyclone, a storm that drops at least 0.71 inches of mercury in barometric pressure within 24 hours, generating an expansive, powerful wind field that can make road travel not just difficult, but life-threatening. NWS W

Up to three feet of snow could blanket the Eastern Alaska Range backcountry this weekend while 90 mph gusts hammer the Alaska Peninsula, putting the Richardson Highway corridor in the path of a multi-day winter assault. The National Weather Service Anchorage office issued a Winter Storm Watch today, Thursday May 7, 2026, layered atop active Winter Weather Advisories and High Wind Warnings that stretch from Bristol Bay through the eastern Aleutians. Peak Driving Danger Window Sunday morning throu

A late-season winter storm is targeting Minnesota's most heavily traveled highway corridors this week, bringing a dangerous combination of heavy snow, freezing rain, sleet, and gusty winds that will make road conditions unpredictable and hazardous from Wednesday evening through Friday morning. The National Weather Service Duluth office has issued a Winter Storm Warning for the Nor

The same storm system that buried Colorado's mountain passes and sent Front Range temperatures crashing into the teens overnight is now driving a dangerous severe weather outbreak across the central and eastern United States. From the Plains to the Great Lakes and into western New York, today's threat includes tornadoes, wind gusts up to 60 mph, large hail, and major river flooding — while Colorado begins a rapid recovery. Severe Weather: Where the Threat Is Now AccuWeather meteorologists have p

A Winter Storm Warning is in effect across parts of the northern U.S. today, March 30, as a fast-moving late-season system sweeps through the Upper Midwest and interior Northeast. Forecasters at the National Weather Service are flagging Northern Michigan, Upstate New York, and the higher elevations of Vermont and New Hampshire as the primary impact zones, with conditions expected to create dangerous travel through Monday evening. What to Expect Snowfall totals of 6-10 inches are forecast across

A Winter Storm Watch is in effect across the Dakotas and northern Minnesota as back-to-back late-season systems line up to hammer the Northern Plains through Easter weekend. The National Weather Service offices in Bismarck, Aberdeen, and Grand Forks have all issued Watches ahead of a second, more powerful storm arriving Friday, and conditions from the first system are already creating hazardous travel across the region today. What to Expect The first storm is moving through the Northern Plains n

The storm isn't at its worst yet, and the roads are already starting to close. The I-80 is already partially closed between Emigrant Gap and Alta for emergency work, and Caltrans has trucks stopped at three screening points across the summit corridor: eastbound at Applegate, westbound at Overland Trail Road in Truckee and at Mogul west of Reno. Maximum chains arre required at all three, with permit loads banned. On the other end of I-80, a high wind advisory on the Bay Bridge means campers and t

A late-season winter storm is delivering a punishing mix of snow, sleet and freezing rain across Wisconsin and Michigan's Upper Peninsula, prompting Ice Storm Warnings, Winter Storm Warnings and Winter Weather Advisories from multiple National Weather Service offices. The Weather Prediction Center is tracking the system as the first of back-to-back significant late-season storms, with ice accumulations up to 0.4 inches, snow totals reaching 4 inches in the Keweenaw Peninsula and wind gusts hitti

Key takeaways A powerful storm system is bringing severe 80 mph crosswinds and heavy mountain snow to the Pacific Northwest and Northern Rockies today. Drivers of high-profile vehicles face extreme blowover risks on exposed highways and mountain passes. The system will transition into a fast-moving clipper by Monday, bringing a slick wintry mix and hazardous driving conditions to the Northern Plains and Upper Midwest. Severe winds and blow over risks in the Northern Rockies The most immediate ha

The late-season Pacific storm flagged earlier this week is now arriving across the Western U.S., and the Weather Prediction Center has upgraded its heavy snow risk to HIGH for both Monday and Tuesday, a significant escalation from earlier outlooks. Winter Storm Warnings remain in effect through NWS Sacramento and NWS Reno for the Sierra Nevada, with the system tracking east into Colorado and the Rockies through midweek. The peak of the storm falls on Tuesday, May 5, which also happens to be Cinc

If you were tracking the Pacific storm that buried Donner Pass overnight, it's not done. The same upper-low is now progressing into Montana, and the National Weather Service has upgraded its earlier Winter Storm Watches to full Winter Storm Warnings across the mountains of southwest and south-central Montana. Two NWS offices are coordinating on this one: Great Falls and Billings. The window runs from Wednesday evening through Friday morning, and this is not a light spring dusting. Same Storm, Di