Frederick, MD (21701)

10:13 PM EDT on July 20, 2017 (GMT -0400)
Monocacy Village Firehouse 725 | | Change Station
Active Advisory: Air Quality Alert

Elev 304 ft 39.42 °N, 77.40 °W | Updated 1 second ago

Clear
Clear
86.0 °F
Feels Like 89 °F
N
0.0
Wind Variable Wind from SSW
Gusts 0.0 mph

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 29.97 in
Visibility 10.0 miles
Clouds Clear
Heat Index 89 °F
Dew Point 68 °F
Humidity 54%
Rainfall 0.00 in
Snow Depth Not available.
5:59 AM 8:32 PM
Waning Crescent, 8% visible
METAR KFDK 210145Z AUTO 00000KT 10SM CLR 28/22 A2997 RMK AO2
Pressure 29.97 in
Visibility 10.0 miles
Clouds Clear
Heat Index 89 °F
Dew Point 68 °F
Humidity 54%
Rainfall 0.00 in
Snow Depth Not available.
5:59 AM 8:32 PM
Waning Crescent, 8% visible
METAR KFDK 210145Z AUTO 00000KT 10SM CLR 28/22 A2997 RMK AO2

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10-Day Weather Forecast

Almanac

Astronomy

Jul. 20, 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

State Highs State Lows

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.



435 PM EDT Wed Jul 19 2017

... Air quality alert is in effect for Thursday July 20 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 Thursday 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 Wed Jul 19 2017

... Air quality alert is in effect for Thursday July 20 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 Thursday 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.