Yosemite Natl Park, CA (95389)

9:46 AM PDT on August 21, 2017 (GMT -0700)
Ahwahnee Meadow, Yosemite National Park | | Change Station
Active Advisory: Air Quality Alert

Elev 4000 ft 37.75 °N, 119.58 °W | Updated 58 seconds ago

Clear
Clear
67.4 °F
Feels Like 67.4 °F
N
0.0
Wind Variable Wind from West

Today
High -- | Low -- °F
--% Chance of Precip.
Yesterday
High -- | Low -- °F
Precip. -- in
Pressure 30.04 in
Visibility 10.0 miles
Clouds Clear
Dew Point 57 °F
Humidity 68%
Rainfall 0.00 in
Snow Depth Not available.
6:19 AM 7:42 PM
Waning Crescent, 0% visible
METAR KO22 211635Z AUTO 13003KT 10SM CLR 25/12 A3004 RMK AO1
Pressure 30.04 in
Visibility 10.0 miles
Clouds Clear
Dew Point 57 °F
Humidity 68%
Rainfall 0.00 in
Snow Depth Not available.
6:19 AM 7:42 PM
Waning Crescent, 0% visible
METAR KO22 211635Z AUTO 13003KT 10SM CLR 25/12 A3004 RMK AO1

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10-Day Weather Forecast

Almanac

Astronomy

Aug. 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

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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.

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: 6:18 AM PDT Aug. 21, 2017 – National Weather Service

The San Joaquin Valley air pollution control district has issued
an air quality alert starting on August 19, 2017, due to smoke
impacts from the South Fork wildfire for Merced, Madera, and
Fresno counties.

This air quality alert is in effect until Wednesday, August 23,
2017.

The Mariposa County air pollution control district has also
issued an air quality alert for smoke impacts from the
South Fork wildfire in Mariposa County. This alert applies to
the area in and around the community of Wawona.

This air quality alert is in effect through at least this
afternoon.

Exposure to particle pollution can cause serious health problems,
aggravate lung disease, cause asthma attacks and acute
bronchitis, and increase risk of respiratory infections.

Residents are advised to use caution as conditions warrant.
People with heart or lung diseases should follow their doctors
advice for dealing with episodes of unhealthy air quality.

Additionally, older adults and children should avoid prolonged
exposure, strenuous activities or heavy exertion, as conditions
dictate.

For additional information, go to www.Valleyair.Org or call your
local San Joaquin Valley air district office.

Modesto 209-557-6400, Fresno 559-230-6000

For additional information in Mariposa County, go to
http://www.Mariposacounty.Org/index.Aspx?Nid=1434 or call
(209)966-2220.



618 am PDT Mon Aug 21 2017

The San Joaquin Valley air pollution control district has issued
an air quality alert starting on August 19, 2017, due to smoke
impacts from the South Fork wildfire for Merced, Madera, and
Fresno counties.

This air quality alert is in effect until Wednesday, August 23,
2017.

The Mariposa County air pollution control district has also
issued an air quality alert for smoke impacts from the
South Fork wildfire in Mariposa County. This alert applies to
the area in and around the community of Wawona.

This air quality alert is in effect through at least this
afternoon.

Exposure to particle pollution can cause serious health problems,
aggravate lung disease, cause asthma attacks and acute
bronchitis, and increase risk of respiratory infections.

Residents are advised to use caution as conditions warrant.
People with heart or lung diseases should follow their doctors
advice for dealing with episodes of unhealthy air quality.

Additionally, older adults and children should avoid prolonged
exposure, strenuous activities or heavy exertion, as conditions
dictate.

For additional information, go to www.Valleyair.Org or call your
local San Joaquin Valley air district office.

Modesto 209-557-6400, Fresno 559-230-6000

For additional information in Mariposa County, go to
http://www.Mariposacounty.Org/index.Aspx?Nid=1434 or call
(209)966-2220.