SPOKANE, WA – Eastern Washington is bracing for the first measurable snow of the season, which is expected to impact I-90 passes and other mountain routes late Sunday into Monday morning. Colder Canadian air will cause snow levels to drop to 3,500 feet, leading to winter-like driving conditions in the higher elevations.
First Snow of the Season: Timing and Areas Affected
The National Weather Service in Spokane reports that a strengthening low-pressure system will move into the Northwest on Sunday, bringing precipitation across the Cascades and northeast mountains. As temperatures drop Sunday evening, rain is expected to turn to snow over key mountain passes, including Lookout Pass, Snoqualmie Pass, and Loup Loup Pass.
Travelers on these routes can expect slick and snow-covered conditions by Monday morning, with the potential for moderate snow accumulations in the higher elevations.
Travel Advisory for I-90 and Mountain Routes
Forecasters are warning that travel conditions across I-90 and surrounding mountain roads could be challenging, especially overnight Sunday into early Monday morning. This is particularly important for those hauling trailers or traveling before sunrise. Snow and ice could make mountain routes hazardous, with snow expected to accumulate at elevations above 3,500 feet.
While lower valleys, such as Spokane and Ritzville, will experience mostly rain mixed with wet snowflakes, mountainous areas will see more substantial snowfalls. Travelers should be aware of the shifting weather patterns and prepare for difficult travel in the higher elevations.
Winter Driving Tips: Prepare for Snow
The Washington State Department of Transportation (WSDOT) advises drivers to check road updates and pack winter gear before heading out. It’s also recommended that drivers avoid unnecessary travel in mountainous areas during the heaviest snow.
For those planning outdoor activities, be prepared for freezing overnight lows and rapidly changing conditions. Forecasters are expecting icy conditions and frost to persist through midweek, with temperatures dipping into the upper 20s and low 30s.
Clearing Conditions by Monday Afternoon
By Monday afternoon, snow will taper off, and skies will clear. However, frost and ice may linger in the mornings, especially at higher elevations, making travel conditions still tricky. Drivers should stay alert for overnight freezes and plan accordingly.
Call to Action
Will you be traveling on I-90 this weekend? Share your thoughts and experiences in the comments below, and remember to check road conditions before you head out to stay safe in this early winter weather.
