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Hemlock Pass, Washington

Mountain pass in King County, Washington, at 4,647 ft

Air quality

The air at Hemlock Pass

Index 25, good, led by fine particles. Read at 11 PM from its reporting area, Cascades of East King County (WA), 30 miles off.

25Good
  • Fine particles (PM2.5)25Good-

The days ahead

Good each day through Sat Oct 17, led by fine particles. Yesterday measured 15, good.

Smoke, the next 42 hours

Little smoke near the ground through Sat 5 PM: the index from smoke stays at 17 or under.

FriSat

Precipitation

What has fallen at Hemlock Pass

None in the last 24 hours; 0.02 in over the last 3 days, to Thu 11 PM. Measured by radar and rain gauges, as water.

Last 24 hours
0.00in
Last 3 days
0.02in

Visibility

How far you can see at Hemlock Pass, the next 42 hours

Fog: visibility falls to 0.5 miles Sat 6 AM, under a mile for 1 hour.

FriSat

Mountain pass

Height
4,647 ft
County
King County
State
Washington
Latitude
47.4448° N
Longitude
121.4673° W

What is measuring near here

The 6 instruments nearest Hemlock Pass, how far away each one is, how high it stands, and what kind of measurement it makes. The nearest is 2.1 miles away.

measured now4 instruments

Franklin FallsTFRAN

Beside a road/2.1 mi away/2,726 ft/1,921 ft below here

temp, pavement temp, wind, visibility, precip

Olallie Meadows SnotelOMWW1

A snow pillow on a mountain/5.0 mi away/4,030 ft/617 ft below here

temp, wind, gust, humidity, pressure

Stampede PassSMP

At an airfield/13.1 mi away/3,967 ft/680 ft below here

temp, wind, gust, visibility, precip, pressure

Citizen station EW6690EW6690

In a volunteer observer's own ground/25.4 mi away/767 ft/3,880 ft below here

temp, humidity, wind, precip, pressure

measured daily2 instruments

HyakHYAW1

At a cooperative observer's station/5.3 mi away/2,568 ft/2,079 ft below here

snowfall, snow depth, precip, high, low

North Bend 5.4 ESEWA-KG-143

In a volunteer observer's own ground/10.1 mi away/808 ft/3,839 ft below here

precip, snowfall, snow depth

0in

Snow on the ground

Measured at Hyak (HYAW1), 5.3 miles from here, read 8 Oct, 06:00. measured daily

Elsewhere in Washington

23 places, each with its own forecast and its own instruments.

Near Hemlock Pass

The nearest places, each with its own forecast and the instruments nearest it.

Near Hemlock Pass