Arlington, VA (22203)

8:16 PM EDT on July 21, 2017 (GMT -0400)
| | Change Station
Active Advisory: Air Quality Alert

Elev -9999 ft 0.00 °N, 0.00 °E | Updated 12 minutes ago

Partly Cloudy
Partly Cloudy
°F
Feels Like °F
N
Wind Variable Wind from North
Gusts mph

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.88 in
Visibility 10.0 miles
Clouds Scattered Clouds 7000 ft
Mostly Cloudy 25000 ft
Dew Point Not available.
Humidity Not available.
Rainfall --
Snow Depth Not available.
6:00 AM 8:29 PM
Waning Crescent, 3% visible
METAR KDCA 212352Z 19006KT 10SM SCT070 BKN250 33/23 A2988 RMK AO2 SLP117 T03280233 10361 20328 55004
Pressure 29.88 in
Visibility 10.0 miles
Clouds Scattered Clouds 7000 ft
Mostly Cloudy 25000 ft
Dew Point Not available.
Humidity Not available.
Rainfall --
Snow Depth Not available.
6:00 AM 8:29 PM
Waning Crescent, 3% visible
METAR KDCA 212352Z 19006KT 10SM SCT070 BKN250 33/23 A2988 RMK AO2 SLP117 T03280233 10361 20328 55004

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10-Day Weather Forecast

Almanac

Astronomy

Jul. 21, 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

Today's Extremes

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Community

WunderPhotos

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.

Nearby

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 Quality Alert
Issued: 4:35 PM EDT Jul. 20, 2017 – National Weather Service

... Air quality alert is in effect for Friday July 21 2017...

The metropolitan Washington Council of governments in association
with Maryland department of the environment, Virginia department
of environmental quality, and district department of environment
has issued a code Orange air quality alert Friday for
the DC Metro area.

A code Orange air quality alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone and fine
particles... visit www.Cleanairpartners.Net.



435 PM EDT Thu Jul 20 2017

... Air quality alert is in effect for Friday July 21 2017...

The metropolitan Washington Council of governments in association
with Maryland department of the environment, Virginia department
of environmental quality, and district department of environment
has issued a code Orange air quality alert Friday for
the DC Metro area.

A code Orange air quality alert means that air pollution
concentrations within the region may become unhealthy for
sensitive groups. Sensitive groups include children, people
suffering from asthma, heart disease or other lung diseases and
the elderly. The effects of air pollution can be minimized by
avoiding strenuous activity or exercise outdoors.

For more information on ground-level ozone and fine
particles... visit www.Cleanairpartners.Net.