The Baltimore region is blanketed with a dense fog causing visibility as narrow as a quarter-mile or less during the morning ...

The advisory was for Foothills of the Northern Blue Mountains of Oregon, Foothills of the Southern Blue Mountains of Oregon ...

The National Weather Service issued a dense fog advisory at 1:03 a.m. on Wednesday in effect until 11 a.m. for Oregon Lower ...

A dense fog advisory is issued by your local National Weather Service office when widespread dense fog develops. When this ...

On Tuesday at 8:02 p.m. the NWS Hanford CA issued a dense fog advisory valid from 10 p.m. until Wednesday 10 a.m. The ...

A Dense Fog Advisory has been issued by the NWS until noon for areas including D.C., parts of Maryland, Virginia, and W.

Arlington and the rest of the D.C. area are under a Dense Fog Advisory tonight. After a foggy Tuesday, forecasters say ...

Areas of patchy fog are possible in the valley early this morning, and calm conditions are expected throughout the afternoon.

Winter weather returns later this week with a front bringing cold temperatures and more lake effect snow for parts of the ...

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or tweet reports using #ONStorm.

Millions of Californians are being urged to stay inside and keep windows closed due to an air quality alert issued by the National Weather Service (NWS).