Southern Washington Cascade Foothills storm history

Temperatures around 100 degrees lead to people seeking relief at local rivers. One drowning was reported at Paradise Point State Park west of La Center during this hot spell.

Ice accumulation of 0.25 to 1 inch.

One to two feet of snow fell.

Snow accumulations on the order of 10-20 inches occurred across the foothills above 2000 feet. The foothill elevations occasionally had snowfall rates of up to 2 inches per hour.

Between 8 and 16 inches of snow fell at elevations above 2000 feet.

Freezing rain occurred in the south Washington Cascade foothills, including the Wind River Valley, which appears to have received 0.50 to 1.00 inch of ice. A trained spotter measured 0.10 inch of ice at 1300 ft elevation near Underwood.

Around 4 to 8 inches of snow fell in about 12 hours above 1000 ft elevation.

Wide distribution of snow amounts, ranging from 2 to 4 inches in the hills outside of Kelso, to up to 8 to 10 inches at Calamity SNOTEL. A second round of snow moved through with up to 17 inches of snow closer to the east ODX metro area and west end of the Columbia Gorge.

Most areas saw some combination of snow, sleet and freezing rain. Impacts were mostly from ice.

High temperatures on the 17th were in the upper 80s to upper 90s. Overnight temperatures were quite warm with lows in the mid 60s to mid 70s.

Elevations above 1500 feet received up to 6 to 12 inches of snow, per CoCoRaHS and SNOTEL reports in the area.

The Calamity SNOTEL reported 22 inches of snowfall.

Snowfall measurement of 10 inches.

The south Washington Cascade foothills observed heavy snowfall. A member of the public reported 11 inches in Yacolt, which is actually in far northern WAZ039 but close enough to serve as a proxy for the South Washington Cascade foothills zone. It is likely areas closer to the Col…

The Big Hollow fire was declared contained on November 13, 2020 at 0900PST.

Fire suppression activities continued on the Big Hollow wildfire through October as cooler and wetter weather arrived.

The Big Hollow wildfire started around 0430PDT on September 8, 2020 in Skamania county, WA at coordinates 45.927, -121.980. The fire grew to approximately 25,000 acres before being declared officially contained on November 13, 2020 at 0900PST. Areas affected were recreational are…

Estimated Beaufort 9-10 scale winds reported by a trained storm spotter (spotter had many years of schooner sailing experience before moving to the Pacific NW). This estimation was done after watching multiple large Douglas Fir trees swaying in the wind. The top of one large Doug…

The Calamity SNOTEL (CLJW1 - 2500') reported 6 inches of snow in 11 hours.

Highest amounts were at higher elevations. The Calamity SNOTEL recorded 12 inches of snow, while locations in Yacolt and Amboy only reported around 4 inches of snow.

The south Washington Cascade Foothills observed anywhere from 6 to 12 inches of snow. A weather station east of Chelatchie reported 8 inches of snow.

CoCoRaHS observer reported 8.0 inches of snow 9 miles north of Yacolt.

There were reports on Twitter of 9 inches of snow on Mt Brynion, 3 miles east of Kelso, and 6 inches of snow near Yacolt.

Pepper Creek SNOTEL reported 8 inches of snow from this event.

A weather spotter at Silver Lake recorded a peak gust of 60 mph.

The Calamity SNOTEL observation site recorded 10 inches of snow.

Silverlake, WA reported 9.5 inches of snow.

The Columbia River Highway was closed between Larch Mountain Rd and Vista House due to extreme ice conditions. Similar conditions likely extended into the South Washington Cascade Foothills near the Columbia Gorge, since they had similar precipitation amounts and temperatures.

The Snotel site at Clamity reported 9 inches of snow.

Generally had reports of 2 to 14 inches of snow.

The Calamity SNOTEL measured 18 inches of snow.

High winds resulted in downed trees and power outages in the vicinity of the Southwest Washington Cascade Foothills. Two near by RAWS (Yellowstone and Eagle Creek) reported wind gusts of 50 mph which is a rare strength for these often wind blocked locations.

The RAWS station at Larch Mountain measured a peak gust of 67 mph.

Snowfall totals included 25 inches at Calamity Snotel and 17 inches at Pepper Creek Snotel.

Pepper Creek SNOTEL measured 9 inches of new snow.

An observer at Hockinson measured 6 inches of new snow in 12 hours.

This event is continued from February. The Calamity SNOTEL site measured 17 inches of new snow.

The Calamity SNOTEL site measured 17 inches of new snow.

The Calamity SNOTEL and the Pepper Creek SNOTEL sites measured 8 inches of new snow.

The Calamity SNOTEL site measured 25 inches of new snow. Heavy snowfall was also measured at the Pepper Creek SNOTEL with 25 inches of new snow. A NWS employee measured 21 inches of new snow in Brush Prairie. Trained spotters measured 19 inches of new snow in NE Camas/Livingston …

The Pepper Creek SNOTEL site measured 26 inches of new snow. Heavy snow was also measured at the Calamity SNOTEL site with 20 inches of new snow and at Brush Prairie with 11 inches of new snow.

The Calamity SNOTEL site measured 12 inches of new snow.

The Calamity SNOTEL site measured 13 inches of new snow between 07:00 PST and 18:00 PST on November 22nd.

The Calamity SNOTEL site reported 9 inches storm total snowfall.

Between 14 and 18 inches of snow fell in the southwest Washington Cascade Foothills.

Between 20 and 40 inches of snow fell in the south Washington Cascade foothills based on a few spotter reports and similar reports from the north Oregon Cascade Foothills.

Between 10 to 20 inches of snow fell in the south Washington Cascades Foothills based on similar reports from the north Oregon Cascade Foothills.

Between 8 and 10 inches accumulated snowfall fell, based on similar conditions and reports from the southwest Washington Cascades.

This wind gust was recorded at the Larch Mountain RAWS. Time of observation is estimated.

Seven inches total accumulated snowfall was reported in the Livingston Mountain area and 6 inches in Amboy.