Washington, 1998

Heavy Snow in Washington, December 27, 1998

December 27, 1998 · NWS PDT · 2 events in 2 counties and zones

Nearly 18 inches of snow fell along Interstate 90 at Snoqualmie Pass before changing to sleet and freezing rain. Up to ten inches of snow fell in the East Slopes of the southern Washington Cascades and up to three inches of snow fell in the Kittitas valley before it changed to rain during the afternoon.

Where it happened

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

What happened

The episode as NWS PDT wrote it up.

Nearly 18 inches of snow fell along Interstate 90 at Snoqualmie Pass before changing to sleet and freezing rain. Up to ten inches of snow fell in the East Slopes of the southern Washington Cascades and up to three inches of snow fell in the Kittitas valley before it changed to rain during the afternoon. Washington Department of Transportation closed Interstate 90 through Snoqualmie Pass and Highway 2 through Stevens Pass by early afternoon because of avalanche danger. Both roads are major traffic routes to Seattle. As many as 3,000 holiday travellers spent the night in Cle Elum and 6,000 in Ellensburg. Central Washington University in Ellensburg opened 800 dorm rooms for stranded travellers. By early evening, hotels were full and the American Red Cross set up shelters. Up to 800 people stayed in Red Cross shelters while others spent the night in their vehicles. The roads through the passes were opened around noon on the 28th after the snow was removed and avalanche control measures were taken.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

2 heavy snow. Local standard time, as filed.

Heavy Snow, East Slopes Southern Cascades

When
December 27, 7:00 AM PST to 7:00 PM PST
Where
East Slopes Southern Cascades forecast zone
Reported by
TRAINED SPOTTER

Heavy Snow, Kittitas Valley

When
December 27, 7:00 AM PST to 3:30 PM PST
Where
Kittitas Valley forecast zone
Reported by
TRAINED SPOTTER
Coordinates
46.791, -120.709 (the zone’s center; the record gives no point)

What these are

Heavy Snow
Snowfall reaching the local warning threshold without the other hazards of a winter storm.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Washington in 1998Every state in 1998This day in weather historyWarnings in Washington, December 1998

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 5675527, 5675528.