020
WWUS46 KSEW 160758
WSWSEW
URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SEATTLE WA
1258 AM PDT SAT MAY 16 2026
WAZ301>304-328-161800-
/O.CON.KSEW.WW.Y.0015.000000T0000Z-260517T1500Z/
CASCADES OF WHATCOM AND SKAGIT COUNTIES-CASCADES OF SNOHOMISH AND
NORTHERN KING COUNTIES-CASCADES OF SOUTHERN KING COUNTY-CASCADES
OF PIERCE AND LEWIS COUNTIES-OLYMPICS-
INCLUDING SR18 AT TIGER MOUNTAIN SUMMIT, SNOQUALMIE PASS,
HURRICANE RIDGE, MOUNT BAKER, PARADISE, LONGMIRE, MOUNT RAINIER,
CRYSTAL MOUNTAIN, WHITE PASS, ASHFORD, GREENWATER, AND STEVENS
PASS
1258 AM PDT SAT MAY 16 2026
..WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 8 AM PDT SUNDAY
* WHAT...SNOW SHOWERS EXPECTED. TOTAL SNOW ACCUMULATIONS OF 4 TO 8
INCHES ABOVE 4000 FEET, WITH HIGHER AMOUNTS POSSIBLE IN THE HIGH
TERRAIN.
* WHERE...CASCADES OF SNOHOMISH AND NORTHERN KING COUNTIES, CASCADES
OF WHATCOM AND SKAGIT COUNTIES, OLYMPICS, CASCADES OF PIERCE AND
LEWIS COUNTIES, AND CASCADES OF SOUTHERN KING COUNTY.
* WHEN...UNTIL 8 AM PDT SUNDAY.
* IMPACTS...LATE SEASON SNOW SHOWERS IN THE MOUNTAINS MAY IMPACT
THOSE ENJOYING OUTDOOR RECREATION IN THE MOUNTAINS ABOVE 4000 FEET
THROUGH TONIGHT. WARM ROAD TEMPERATURES MAY LIMIT ROADWAY
ACCUMULATIONS. HOWEVER, TEMPORARY ROAD ACCUMULATIONS WILL BE
POSSIBLE IN HEAVY SNOW SHOWERS.
* ADDITIONAL DETAILS...EXPECT COLD CONDITIONS IN THE MOUNTAINS. THE
HIGHEST CHANCES FOR HEAVY SHOWERS WILL OCCUR THIS AFTERNOON. THESE
SHOWERS COULD BE ACCOMPANIED BY LIGHTING AND SMALL HAIL.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SLOW DOWN AND USE CAUTION WHILE DRIVING DURING OR AFTER HEAVY
SHOWERS. THOSE RECREATING ABOVE 4000 FEET SHOULD BE AWARE OF THE
POTENTIAL FOR SNOW SHOWERS AND THUNDERSTORMS. HAVE A PLAN FOR HOW TO
FIND SAFETY AND KNOW WHERE AND HOW FAST YOU CAN FIND SHELTER.
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