As the calendar inches toward spring, the mountains of central and western Washington are bracing for what forecasters are calling the biggest snowstorm of the season—one that’s already begun to upend travel, disrupt daily routines, and test the mettle of both residents and transportation crews. The National Weather Service (NWS) and Washington State Department of Transportation (WSDOT) have issued a flurry of warnings for the Cascade and Olympic Mountains, as well as for the surrounding lowlands, with conditions expected to deteriorate through Friday, March 13, 2026.
According to the NWS in Spokane, a Winter Storm Warning was in effect for western Chelan County—including Stehekin, Holden Village, and Stevens Pass—until 6 p.m. Wednesday, March 11. During this period, heavy snow blanketed the region, with accumulations of 10 to 20 inches reported before a more severe blizzard warning kicked in at 6 p.m., set to last until 5 a.m. Thursday. The forecast called for wind gusts up to 50 mph, with visibility dropping below one-quarter mile and whiteout conditions developing at higher elevations, making travel not just hazardous but potentially life-threatening.
Stevens Pass, a critical artery through the central Cascades, was hit especially hard. The combination of heavy, wet snow and strong winds created treacherous driving conditions along U.S. 2 and nearby mountain routes. The NWS warned that snow levels could briefly rise Wednesday evening, turning fluffy flakes into heavier, wetter snow and even mixing with rain in some spots before colder air returned overnight. By Thursday morning, temperatures were expected to plunge back into the 20s (Fahrenheit), ensuring that snow would continue to accumulate. The threat, officials cautioned, was far from over: a Winter Storm Watch remained in place from late Wednesday night through Friday morning, with another 1 to 3 feet of snow possible across the Cascade crest and surrounding mountains.
It’s not just Stevens Pass feeling the brunt of this wild weather. The Summit at Snoqualmie, another major mountain pass, saw 11 inches of snow in just 24 hours as of March 11. According to WSDOT spokesperson Scott Klepach, conditions on Interstate 90 (I-90) at Snoqualmie Pass were initially wet but quickly turned treacherous. "If there’s spin outs and delays, and with the combination of weather elements, there might be a forced closure," Klepach said, underscoring the seriousness of the situation. WSDOT announced it may redirect snow plows from other regions to help clear affected passes, including I-90 at Snoqualmie, Highway 2 at Stevens Pass, and Highway 12 at White Pass.
The advice from officials is clear: delay mountain travel unless absolutely necessary. "Persons should consider delaying all travel. If travel is absolutely necessary, drive with extreme caution," WSDOT and the Weather Service jointly urged. For those who must venture out, Klepach recommended building in extra time and packing a winter weather survival kit—a tip echoed by local reporters and travel experts across the region.
The scale of the storm is remarkable even by Pacific Northwest standards. The NWS described this as the biggest mountain snowfall of the season, with 1 to 4 feet of snow and wind gusts between 30 and more than 50 mph expected through Friday. By Thursday morning, the mountains could see one to two feet of fresh snow, with additional accumulations possible into the weekend as an atmospheric river brings more moisture and precipitation. National Weather Service meteorologist Dana Felton noted, "This will certainly help," referring to the below-normal snowpack that has plagued ski areas and farmers alike—Snoqualmie Pass has seen only 36% of its typical snowfall this season, and Stevens Pass just 40%.
Down in the lowlands, the Puget Sound region, including Seattle, is largely spared snow but not wind. Wind advisories were issued for virtually all of Western Washington on Tuesday evening, with gusts above 40 mph expected Wednesday, peaking between 8 and 11 p.m. The NWS warned residents to be prepared for downed power lines, damaged trees, and hazardous conditions on local waters. Seattle itself was forecast to remain drizzly, with temperatures too warm for snow accumulation—highs in the mid-40s and lows in the mid-30s to low 40s. However, the relentless wind and rain were likely to keep the region on edge through the week.
East of the Cascades, the Tri-Cities and much of Southeast Washington found themselves under a high wind watch from 5 p.m. Wednesday to 11 a.m. Thursday. Wind gusts were forecast to reach 32 mph on Wednesday and up to 40 mph Wednesday night, with sustained speeds of 22 mph. The previous Sunday’s windstorm had already delivered a peak gust of 56 mph at the Tri-Cities Airport, sending trampolines flying and garbage cans on unexpected journeys. This time, the windstorm was expected to bring rain, helping to tamp down blowing dust—a small mercy for residents still recovering from the last round. By Wednesday night, the chance of rain was 40%, increasing to 60% by late Friday. The weekend looked to offer a brief respite, with a sunny Saturday and mostly dry Sunday in the forecast.
The storm’s impact on agriculture and recreation is significant. The snowpack in the Eastern Cascade Mountains was at just 44% of normal ahead of the crucial irrigation season, according to the Tri-City Herald. The heavy mountain snowfall, while a headache for travelers, is a much-needed boost for farmers and ski resorts alike. For skiers and snowboarders, the storm brings a silver lining: fresh powder at last for slopes that have been starved all winter. As one local meteorologist put it, "An atmospheric river will start pointing at the Seattle area later Thursday, so we’re just going to stay wet."
For now, the advice from officials is unanimous: check road conditions before leaving, delay travel if possible, and if you must go, pack plenty of patience—and maybe a shovel. WSDOT crews are working around the clock to keep roads open and safe, but with blizzard conditions and whiteouts possible at any moment, even the best-laid plans can be upended in a heartbeat. "Significant snowfall with periods of heavy snowfall rates will combine with low visibility to create difficult driving conditions," WSDOT warned. For many, it’s a reminder that despite the approach of spring, winter isn’t done with Washington just yet.
As the mountains dig out and the region waits for the next weather update, one thing is certain: Mother Nature still has a few surprises left in her bag.