Seattle, Washington — The National Weather Service in Seattle is warning drivers to prepare for slick and potentially dangerous road conditions as freezing temperatures are forecast overnight across the region.
According to NWS Seattle, lingering moisture from recent showers may freeze, leading to the formation of black ice, particularly on side streets, untreated roads, curbs, and shaded areas. Officials note that black ice is often difficult to see and becomes more prevalent during nighttime and early morning hours.
Motorists are urged to slow down, leave extra following distance, and avoid sudden braking to reduce the risk of crashes. Authorities also recommend exercising caution on bridges and overpasses, which tend to freeze faster than surrounding roadways.
Residents are encouraged to stay updated on weather advisories and road conditions as winter weather continues to impact travel across western Washington.
Freezing temps are in the forecast for tonight. Expect slick conditions as lingering roadway moisture from showers lead to black ice on side streets and untreated roadways.
Slow down, leave yourself room, and avoid slamming on the brakes. #wawx pic.twitter.com/Mpf3nfhBdg
— NWS Seattle (@NWSSeattle) December 27, 2025