Weather Alert in Maryland

Recent Locations: Campbellsville, KY Parkersburg, WV Rockville, MD

Current Alerts for Rockville, MD: Unnamed Alert

Special Weather Statement issued February 17 at 9:30PM EST by NWS Wakefield VA

AREAS AFFECTED: Dorchester; Wicomico; Somerset; Inland Worcester; Maryland Beaches

DESCRIPTION: Cameras and observations indicate that patchy dense fog has developed on the Lower Maryland Eastern Shore. Visibilities will average between one half and two miles, but could drop to less than a mile at times. The fog will persist for at least the next couple of hours. Motorists should be alert for sudden changes in visibility due to the areas of fog. Drive at reduced speeds and use low beam headlights only.

INSTRUCTION: N/A

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Weather Topic: What is Fog?

Home - Education - Cloud Types - Fog

Fog Next Topic: Fractus Clouds

Fog is technically a type of stratus cloud, which lies along the ground and obscures visibility.

It is usually created when humidity in the air condenses into tiny water droplets. Because of this, some places are more prone to foggy weather, such as regions close to a body of water.

Fog is similar to mist; both are the appearance of water droplets suspended in the air, but fog is the term applied to the condition when visibility is less than 1 km.

Next Topic: Fractus Clouds

Weather Topic: What is Freezing Rain?

Home - Education - Precipitation - Freezing Rain

Next Topic: Graupel

Freezing rain is a condition where precipitation which has fallen in the form of water droplets reaches temperatures which are below freezing and freezes upon coming into contact with surface objects. The result of this precipitation is a glaze of ice which can be damaging to plants and man-made structures. A severe onset of freezing rain which results in a very thick glaze of ice is known as an ice storm.

Next Topic: Graupel