Seattle, WA

10:13 AM PST on December 12, 2017 (GMT -0800)
Seattle | | Change Station
Active Advisory: Air Stagnation Advisory

Elev 0 ft 47.61 °N, 122.34 °W | Updated 9 minutes ago

Overcast
Overcast
44.1 °F
Feels Like 44 °F
N
2.5
Wind Variable Wind from South
Gusts 5.0 mph

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 30.50 in
Visibility 10.0 miles
Clouds Overcast 6500 ft
Windchill 44 °F
Dew Point 36 °F
Humidity 73%
Rainfall 0.00 in
Snow Depth Not available.
7:48 AM 4:17 PM
Waning Crescent, 26% visible
METAR KBFI 121753Z 00000KT 10SM OVC065 04/01 A3050 RMK AO2 SLP327 T00390011 10039 21017 51010
Pressure 30.50 in
Visibility 10.0 miles
Clouds Overcast 6500 ft
Windchill 44 °F
Dew Point 36 °F
Humidity 73%
Rainfall 0.00 in
Snow Depth Not available.
7:48 AM 4:17 PM
Waning Crescent, 26% visible
METAR KBFI 121753Z 00000KT 10SM OVC065 04/01 A3050 RMK AO2 SLP327 T00390011 10039 21017 51010

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10-Day Weather Forecast

Almanac

Astronomy

Dec. 12, 2017 Rise Set
Actual Time
Civil Twilight
Nautical Twilight
Astronomical Twilight
Moon
Length of Visible Light
Length of Day
Tomorrow will be .
, % of the Moon is Illuminated

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Category 6

Welcome to Category 6. This is the collective home for Weather Underground's featured writeups by Dr. Jeff Masters (right), Bob Henson (left), Chris Burt, and other regular contributors.

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Air Quality

  Air Quality AQ Index Pollutant
Not available.

Snow Depth

Station Depth Elevation

Earthquake Activity

City Distance Mag. Time & Date
Minimum magnitude displayed is 2.5.

Coastal Water Temperatures

Place Temperature

Stations

Nearby Weather Stations

Station Location Temp. Windchill Dew Point Humidity Wind Precip. Elev Updated Type
                   

Watches & Warnings

Air Stagnation Advisory
Issued: 9:38 AM PST Dec. 11, 2017 – National Weather Service

... Air stagnation advisory now in effect until 2 PM PST
Thursday...

* air quality... dry conditions, light winds and poor mixing has
lead to stagnant conditions in the interior lowlands. Stagnant
conditions will trap pollutants near the surface which will
lead to deteriorating air quality.

* Timing... through Thursday afternoon.

* Main impact... deteriorating air quality may affect people with
respiratory issues. Check with your local clean air agencies
for possible burn bans.

Nwcleanairwa.Gov www.Orcaa.Org www.Pscleanair.Org
www.Swcleanair.Org www.Ecy.WA.Gov

Precautionary/preparedness actions...

An air stagnation advisory indicates that due to limited movement
of an air mass across the advisory area... pollution will increase
to dangerous levels. Persons with respiratory illness should
follow their physicians advice for dealing with high levels of
air pollution.



Www.Weather.Gov/Seattle