Northern Virginia
Rise 6:00AM
Set 8:31PM
Reporting Location : Ashburn, VA
Scattered clouds. Mild.
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Rise 6:00AM
Set 8:31PM
Waxing gibbous
Rise8:32PM
Set4:37AM
SATURDAY NIGHT
IAD / No delays
Air Quality Observations
Station Name | Concentration | Category |
---|---|---|
Rockville | 60 ppb | Moderate |
South Carroll | 57 ppb | Moderate |
MORGANTOWN | 56 ppb | Moderate |
Frederick Airport | 57 ppb | Moderate |
Air Quality Forecast
Date | Pollutant | Concentration | Category |
---|---|---|---|
18 Jul | Particulates smaller than 2.5 microns | 52 ppb | Moderate |
19 Jul | Particulates smaller than 2.5 microns | 55 ppb | Moderate |
20 Jul | Particulates smaller than 2.5 microns | 50 ppb | Good |
21 Jul | Particulates smaller than 2.5 microns | 53 ppb | Moderate |
22 Jul | Particulates smaller than 2.5 microns | 55 ppb | Moderate |
23 Jul | Particulates smaller than 2.5 microns | 56 ppb | Moderate |
24 Jul | Particulates smaller than 2.5 microns | 55 ppb | Moderate |
Rise 6:00AM
Set 8:31PM
Waxing gibbous
Rise8:32PM
Set4:37AM
SATURDAY NIGHT
IAD / No delays
Extended Forecast
Date | Category | Reason |
---|---|---|
20 Jul Saturday | Good | well-mixed atmosphere, low pressure |
21 Jul Sunday | Good | precipitation, well-mixed atmosphere, low pressure |
22 Jul Monday | Good | precipitation, well-mixed atmosphere, low pressure |
23 Jul Tuesday | Good | precipitation, well-mixed atmosphere, low pressure |
24 Jul Wednesday | Good | precipitation, well-mixed atmosphere, low pressure |
25 Jul Thursday | Good | precipitation, well-mixed atmosphere, low pressure |
26 Jul Friday | Good | precipitation, well-mixed atmosphere, low pressure |
Detailed Forecast
Date | Category | Reason |
---|---|---|
20 Jul Night | Good | well-mixed atmosphere, low pressure |
20 Jul Morning | Good | well-mixed atmosphere, low pressure |
20 Jul Afternoon | Good | well-mixed atmosphere, low pressure |
20 Jul Evening | Good | well-mixed atmosphere, low pressure |
21 Jul Night | Good | well-mixed atmosphere, low pressure |
21 Jul Morning | Good | well-mixed atmosphere, low pressure |
21 Jul Afternoon | Good | well-mixed atmosphere, low pressure |
21 Jul Evening | Good | precipitation, well-mixed atmosphere, low pressure |