Weather Alert in Maryland

Recent Locations: Sutton, NE West Springfield, MA Fallston, MD

Coastal Flood Advisory issued August 2 at 8:04PM EDT until August 3 at 8:00AM EDT by NWS Baltimore MD/Washington DC

AREAS AFFECTED: Anne Arundel

DESCRIPTION: * WHAT...Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Anne Arundel County. * WHEN...Until 8 AM EDT Sunday, especially around the time of high tide. * IMPACTS...At 2.8 feet, flooding of some of the parking area near Dock Street in Annapolis may occur, with water surrounding the Alex Haley Memorial. * ADDITIONAL DETAILS...Tides one to one and a half feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 1:41 AM.

INSTRUCTION: If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property.

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Weather Topic: What are Wall Clouds?

Home - Education - Cloud Types - Wall Clouds

Wall Clouds Next Topic: Altocumulus Clouds

A wall cloud forms underneath the base of a cumulonimbus cloud, and can be a hotbed for deadly tornadoes.

Wall clouds are formed by air flowing into the cumulonimbus clouds, which can result in the wall cloud descending from the base of the cumulonimbus cloud, or rising fractus clouds which join to the base of the storm cloud as the wall cloud takes shape.

Wall clouds can be very large, and in the Northern Hemisphere they generally form at the southern edge of cumulonimbus clouds.

Next Topic: Altocumulus Clouds

Weather Topic: What are Altostratus Clouds?

Home - Education - Cloud Types - Altostratus Clouds

Next Topic: Cirrocumulus Clouds

Altostratus clouds form at mid to high-level altitudes (between 2 and 7 km) and are created by a warm, stable air mass which causes water vapor to condense as it rise through the atmosphere. Usually altostratus clouds are featureless sheets characterized by a uniform color.

In some cases, wind punching through the cloud formation may give it a waved appearance, called altostratus undulatus. Altostratus clouds are commonly seen with other cloud formations accompanying them.

Next Topic: Cirrocumulus Clouds