Maryland Weather & Safety Alerts
10 active alerts ยท Updated July 19, 2026
Data source: National Weather Service (NWS) Last verified: July 19, 2026
Air Quality
Air Quality Alert (ADVISORY) - expires July 20, 2026 at 12:00 AM EDT
Areas affected: Extreme Western Allegany; Central and Eastern Allegany; Western Garrett; Eastern Garrett
Air Quality Alert issued July 18 at 10:30PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Monday for Western Maryland.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 20, 2026 at 12:00 AM EDT
Areas affected: Washington
Air Quality Alert issued July 18 at 10:30PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Monday for the Hagerstown 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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Southern Baltimore; Anne Arundel
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for the Baltimore City Metro and Annapolis region.
Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon.
Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Prince Georges; Central and Southeast Montgomery; Central and Southeast Howard
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for the Maryland suburban DC region.
Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon.
Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Cecil; Southeast Harford
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for Northeast Maryland.
Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon.
Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Frederick; Carroll; Northwest Montgomery; Northwest Howard
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for the Maryland Piedmont region.
Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon.
Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Extreme Western Allegany; Central and Eastern Allegany; Western Garrett; Eastern Garrett
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for Western Maryland.
Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon.
Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Northern Baltimore; Northwest Harford
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for Northern Baltimore.
Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon.
Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Washington
Air Quality Alert issued July 17 at 4:40PM EDT by NWS Baltimore MD/Washington DC
The Maryland Department of the Environment has issued a Code ORANGE Air Quality Alert Saturday for the Hagerstown area.
Concentrations of fine particulate matter due to wildfire smoke will persist at levels consistent with an Air Quality Index of Unhealthy (Red Alert) to Very Unhealthy (Purple Alert) Friday night into Saturday morning. Air quality begins to improve Saturday afternoon.
Code Purple and Code Red Air Quality Alerts mean that air pollution concentrations within the region are unhealthy to very unhealthy for the general population.
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 the web site mde.maryland.gov/programs/air/AirQualityMonitoring/Pages/index.aspx
Source: NWS Baltimore MD/Washington DC
Air Quality Alert (ADVISORY) - expires July 19, 2026 at 12:00 AM EDT
Areas affected: Kent; Queen Anne's
Air Quality Alert issued July 17 at 3:45PM EDT by NWS Mount Holly NJ
The Maryland Department of the Environment has issued a code orange air quality alert Saturday for Kent and Queen Annes Counties in Maryland.
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 http://www.mde.maryland.gov/programs/air/
Source: NWS Mount Holly NJ
Source
Alert data provided by the National Weather Service (NWS). This page shows active alerts only and is refreshed daily. For real-time updates, visit weather.gov.