Air Quality

Snow Across the Great Lakes, Central Appalachians, and Northeast; Unsettled Weather in the West

Light to moderate snow will continue into Saturday over the Great Lakes, Central Appalachians, and Northeast. This weekend into next week, a series of atmospheric rivers will bring gusty winds, periods of heavy rain, and mountain snow to northern California and the Pacific Northwest. Colder temperatures are in store for the weekend from the Great Lakes to East Coast. Read More >

Air Quality Forecasts

As a public service, the National Weather Service in Raleigh will redistribute Air Quality Forecasts produced by the North Carolina Division of Air Quality and the Forsyth County Environmental Affairs Department. The Raleigh National Weather Service office will transmit the Air Quality Forecasts as a Text Product (AEUS72 KRAH or RDUAQIRAH) through the NOAA Weather Wire, on our Web Site and on NOAA Weather Radio.

The Air Quality Forecasts for the Triangle, Fayetteville, and Rocky Mount areas are provided by the North Carolina Division of Air Quality. Air quality forecasts for the Triad area are provided By the Forsyth County Environmental Affairs Department.

The Air Quality Forecast:

Additional Details, Resources and References:

North Carolina Division of Air Quality
www.ncair.org

Forsyth County Environmental Affairs Department
https://www.co.forsyth.nc.us/EAP/

Understanding the AQI
The purpose of the AQI is to help you understand what local air quality means to your health. To make it easier to understand, the AQI is divided into six categories:

Category	AQI	Color Code	Health Statements
Good	1 - 50	Green	No health impacts are expected when air quality is in this range.
Moderate	51-100	Yellow	Unusually sensitive people should consider limiting prolonged outdoor exertion.
Unhealthy for Sensitive Groups	101-150	Orange	Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
Unhealthy	151 - 200	Red	Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.
Very Unhealthy	201-300	Purple	Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.
Hazardous	301-500	Maroon	AQI values over 300 trigger health warnings of emergency conditions. The entire population is more likely to be affected.

Category

AQI

Color Code

Health Statements

Good

1 - 50

Green

No health impacts are expected when air quality is in this range.

Moderate

51-100

Yellow

Unusually sensitive people should consider limiting prolonged outdoor exertion.

Unhealthy for Sensitive Groups

101-150

Orange

Active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.

Unhealthy

151 - 200

Red

Active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion; everyone else, especially children, should limit prolonged outdoor exertion.

Very Unhealthy

201-300

Purple

Active children and adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; everyone else, especially children, should limit outdoor exertion.

Hazardous

301-500

Maroon

AQI values over 300 trigger health warnings of emergency conditions. The entire population is more likely to be affected.