East Slopes of the Washington Cascades storm history
Storm events recorded in East Slopes of the Washington Cascades, Washington between 1950 and 2025.
84
Total events
0
Tornadoes
0
Hail
0
Floods
3
Deaths
$8.4M
Property damage
Most significant events
Strongest tornadoes, deadliest events, and biggest damage in this county. Up to 50 shown.
Several inches of snowfall coupled with melting/refreezing snow lead to treacherous travel conditions near Blewett Pass. This resulted in at least 9 automobile collisions and one fatality in the evening and overnight hours of the 29th.
Very heavy snow fell along the east slopes of the Washington Cascades with 53 inches at Snoqualmie Pass and 38 inches at Trout Lake. Interstate 90 over Snoqualmie Pass was closed for over 72 hours for snow removal and avalanche mitigation. Just after the initial closure a fatal m…
Winter Storm Winter Storm
A trained spotter 4 miles east southeast of Roslyn, WA measured 12 inches of new snow in a 24 hour period ending at 1139 PST on Dec. 24th. Via a public report 30 miles west of Tieton, 0.25 inches ice accumulation from freezing rain was reported at 1000 PST on Dec. 24th. A trained…
Heavy Snow Heavy Snow
The Bumping Ridge Snotel station reported 12 inches of new snow in a 13 hour period ending at 1200 PST on Dec. 20th. The Washington Department of Highways reported 15 inches of new snow in a 25 hour period ending at 1817 PST on Dec. 20th.
Heavy Snow Heavy Snow
A Cocorahs observer 1 mile south southwest of Trout Lake, WA measured 17.5 inches of new snow in a 24 hour period ending at 0730 PST on Dec. 10th. A trained spotter 22 miles N of White Salmon, WA measured 12.5 inches of new snow at 2135 Dec. 9th.
Heavy Snow Heavy Snow
A trained spotter 1 mile north northwest of Glenwood, WA measured 22 inches of new snow in a 24 hour period ending at 0610 on Nov. 30th. A trained spotter 1 mile north of Trout Lake measured 20 inches of new snow in a 24 hour period ending at 0750 on Nov. 30th. A member of the pu…
Excessive Heat Excessive Heat
Several RAWS stations across the zone recorded consecutive maximum daily high temperatures of 95 degrees or greater from July 25th through the 31st.
Heavy Snow Heavy Snow
A Cocorahs observer 4 miles northeast of White Salmon, WA measured 12 inches of new snow overnight at 0830 PDT. A Co-Op observer 1 mile south of Snowden, WA measured 12.6 inches of new snow in a 24 hour period ending at 1102 PDT.
Heavy Snow Heavy Snow
A trained spotter in Goose Prairie, WA measured 12 inches of new snow in a 24 hour period, and 18 inches of new snow in 48 hour period ending at 2200 PDT. The Washington Dept. of Highways at a point 10 miles west of Rimrock, WA measured 18 inches of new snow in a 24 hour period e…
Heavy Snow Heavy Snow
The Co-op observer at the Easton Dam in NW Easton measured 27 inches of new snow in a 24 hour period ending at 0800 PST on Jan. 6th. The Cocorahs observer WA-KT-7 8.9 miles E of Cle Elum, WA measured 18.5 inches of new snow at 0700 PST on Jan. 6th.
Heavy Snow Heavy Snow
A Cocorahs observer 17 miles NW of Roslyn, WA measured 17 inches of new snow in a 24 hour period ending at 0700 PST on Jan. 3rd. A public report indicated 12 inches of new snow had fallen 12 miles NW of Tieton, WA at 1000 PST on Jan. 3rd.
Heavy Snow Heavy Snow
A trained spotter in Easton, WA estimated 36 inches of snow accumulated in a 2 to 3 day period.
Excessive Heat Excessive Heat
Several RAWS stations across the zone recorded consecutive daily high temperatures over 95 degrees through the period, with the Sawmill Flats, Swauk, and Buck Creek RAWS sites having recorded consecutive daily high temperatures over 100 degrees.
Heavy Snow Heavy Snow
The Fish Lake Snotel 20 miles N of Roslyn, WA measured 20 inches of snowfall at 740pm PST on Feb. 26th. The Potato Hill Snotel 38 miles W of White Swan, WA measured 14 inches of snowfall at 743pm PST on Feb. 26th.
Heavy Snow Heavy Snow
A co-op observer 2 miles SSE of Snoqualmie Pass, WA recorded 14 inches of new snow between 6am PST on 12/30 and 6am PST on 12/31. A Cocorahs observer 6 miles NW of Easton, WA measured 14 inches of new snow between 7am PST on 12/30 and 7am PST on 12/31.
Winter Storm Winter Storm
A Co-Op observer 2 miles SSE of Snowqualmie Pass, WA recorded 14 inches of new snow between 8pm PST on 11/12 and 7am PST on 11/13. The Bumping Ridge snotel measured 10 inches of new snow between 8pm PST on 11/12 and 2:30pm PST on 11/13, and a total of 15 inches of snow between 8p…
Heat Heat
Heat peaked on 7/31 with a temperature of 99 degrees at Easton.
Heavy Snow Heavy Snow
Twenty-four inches of snow in Roslyn, 20 inches in Easton.
Winter Storm Winter Storm
Snow totals of 13 inches 2 SSE Snoqualmie Pass and one quarter inch of sleet in West Trout Lake.
Heavy Snow Heavy Snow
Heavy Snow Heavy Snow
Winter Weather Winter Weather
Light freezing rain in Naches. A school bus slid off the highway. No injuries were reported.
Heavy Snow Heavy Snow
Heavy Snow Heavy Snow
Eleven inches of snow fell at Snoqualmie Pass. Interstate 90 was closed for 3 hours due to multiple spin-outs on the pass.
Winter Weather Winter Weather
Interstate 90 over Snoqualmie Pass was closed for 4 hours after multiple spin-outs due to 4 inches of wet and slushy snow accumulation.
Wildfire Wildfire
Inciweb.
Wildfire Wildfire
Inciweb.
Wildfire Wildfire
Inciweb.
Heavy Snow Heavy Snow
Measured snow accumulation of 15.5 inches at Easton in western Kittitas county.
Heavy Snow Heavy Snow
Measured snow accumulation of 13 inches, 7 miles NNW of Easton in western Kittitas county.
Heavy Snow Heavy Snow
Measured snow accumulation of 12 inches at Easton in Kittitas county.
Heavy Snow Heavy Snow
Estimated 6 to 8 inches of snow with a cover of ice at Cle Elum in Kittitas county. Snow and ice occurred in a period of under 10 hours. Temperatures warmed above freezing 3 to 4 hours after report.
Wildfire Wildfire
Inciweb and Northwest Interagency Coordination Center.
Wildfire Wildfire
Inciweb.
Wildfire Wildfire
Inciweb.
Wildfire Wildfire
Inciweb.
Wildfire Wildfire
Inciweb.
Heavy Snow Heavy Snow
Measured snow fall of 11 inches 6 miles ENE of Easton in Kittitas county.
Winter Storm Winter Storm
Winter storm produced a snow accumulation of 12 inches with an ice accumulation of 0.38 inches on top of the snow. Occurred 1 mile NNW of Glenwood in Klickitat county.
Heavy Snow Heavy Snow
Storm total snow accumulation of 14 inches, 5 miles ESE of Cle Elum in Kittitas county.
Heavy Snow Heavy Snow
Storm total snow accumulation of 15.5 inches with 12.5 inches in the past 24 hours, 1 mile NNW of Glenwood in Klickitat county.
Ice Storm Ice Storm
Accumulated ice of .5 inches, 1 mile north of Trout Lake in Klickitat county.
Heavy Snow Heavy Snow
Measured 8 inches of snow on the 8th for a storm total snow fall of 14 inches, 2 miles east of Cle Elum in Kittitas county.
Heavy Snow Heavy Snow
Measured heavy snow accumulation of 12 inches, 7 miles north-northwest of Easton in Kittitas county. This is in the northern portion of the zone.
Heavy Snow Heavy Snow
Measured heavy snow accumulation of 6.9 inches, 1 mile south-southwest of Trout Lake in Klickitat county. This in the southern portion of the zone.
Heavy Snow Heavy Snow
Measured heavy snow of 10 inches 4 miles north-northeast of White Salmon on the 8th. Snow continued off and on through early morning on the 10th with further accumulations.
Heavy Snow Heavy Snow
Estimated heavy snow of 7 inches 2 north of Naches in Yakima county. Elevation of 2700 feet.
Heavy Snow Heavy Snow
Events by year
| Year | Events | Tornadoes |
|---|---|---|
| 2022 | 9 | 0 |
| 2021 | 3 | 0 |
| 2020 | 4 | 0 |
| 2019 | 7 | 0 |
| 2018 | 9 | 0 |
| 2017 | 12 | 0 |
| 2016 | 4 | 0 |
| 2015 | 6 | 0 |
| 2014 | 7 | 0 |
| 2013 | 2 | 0 |
| 2012 | 9 | 0 |
| 2011 | 7 | 0 |
| 2010 | 5 | 0 |