Alerts
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| Air Quality Alert issued May 18 at 4:40PM EDT by NWS Baltimore MD/Washington DC | ||
| NWS Baltimore MD/Washington DC | ||
| Category | Certainty | Severity |
| Met | Unknown | Unknown |
| Status | Urgency | Category |
| Actual | Unknown | Met |
| Effective | Ends | Expires |
| 05/18/2026 04:40 PM | 05/19/2026 06:05 PM | 05/20/2026 12:00 AM |
The Maryland Department of the Environment has issued a Code
ORANGE Air Quality Alert Tuesday for
the Baltimore City Metro and Annapolis region.
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
|
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Hourly Forecast
Tue, 06:00 PM
Scattered Showers And ThunderstormsWinds: 10 mph S
Tue, 07:00 PM
Isolated Showers And ThunderstormsWinds: 8 mph S
Tue, 08:00 PM
Mostly CloudyWinds: 7 mph S
Tue, 09:00 PM
Mostly CloudyWinds: 7 mph S
Tue, 10:00 PM
Partly CloudyWinds: 7 mph S
Tue, 11:00 PM
Partly CloudyWinds: 7 mph S
Wed, 12:00 AM
Partly CloudyWinds: 7 mph S
Wed, 01:00 AM
Partly CloudyWinds: 7 mph SW
Wed, 02:00 AM
Partly CloudyWinds: 7 mph SW
Wed, 03:00 AM
Mostly ClearWinds: 6 mph SW
Wed, 04:00 AM
Mostly ClearWinds: 6 mph SW
Wed, 05:00 AM
Mostly ClearWinds: 5 mph SW
Wed, 06:00 AM
SunnyWinds: 5 mph SW
Wed, 07:00 AM
SunnyWinds: 5 mph SW
Wed, 08:00 AM
SunnyWinds: 6 mph SW
Wed, 09:00 AM
SunnyWinds: 7 mph SW
Wed, 10:00 AM
SunnyWinds: 7 mph SW
Wed, 11:00 AM
SunnyWinds: 8 mph SW
Wed, 12:00 PM
SunnyWinds: 8 mph SW
Wed, 01:00 PM
Mostly SunnyWinds: 9 mph SW
Wed, 02:00 PM
Slight Chance Showers And ThunderstormsWinds: 10 mph S
Wed, 03:00 PM
Chance Showers And ThunderstormsWinds: 10 mph SW
Wed, 04:00 PM
Chance Showers And ThunderstormsWinds: 10 mph W
Wed, 05:00 PM
Showers And Thunderstorms LikelyWinds: 10 mph W
Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY.
Tidal Potomac River and Maryland portion of Chesapeake Bay. Forecasts of wave heights do not include effects of wind direction relative to tidal currents. Expect higher waves when winds are blowing against the tidal flow. Waves flat where waters are iced over. Winds subside late tonight. Additional Small Craft Advisories may be needed through Thursday as a cold front crosses the waters. The front will bring scattered to numerous showers and thunderstorms Wednesday afternoon and evening. Special Marine Warnings may be needed for stronger thunderstorms during this time. No marine hazards are expected Thursday with Small Craft conditions returning Friday into the weekend.