Weather Alert in Massachusetts
Coastal Flood Advisory issued August 21 at 1:03PM EDT until August 22 at 2:00AM EDT by NWS Boston/Norton MA
AREAS AFFECTED: Dukes; Nantucket
DESCRIPTION: * WHAT...Large breaking waves of 15 to 20 feet on south coastal beaches. Flooding of up to one foot deep on vulnerable coastal roads around high tide late tonight and late Friday night. * WHERE...Marthas Vineyard and Nantucket. * WHEN...For the High Surf Advisory, until 8 PM EDT Saturday. For the Coastal Flood Advisory, for high tides late tonight and late Friday night. * IMPACTS...Roads remain passable. Low lying areas and roads near Nantucket Harbor, including Easy Street, and Edgartown Harbor may experience pockets of shallow flooding less than one foot deep. Dangerous swimming and surfing conditions and significant beach and dune erosion.
INSTRUCTION: Do not drive around barricades or through water of unknown depth during high tide. Take the necessary actions to protect flood- prone property. Many ocean beaches are closed. Stay out out of the water due to dangerous surf conditions. Only view surf at a safe distance, not from near the shore.
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Weather Topic: What are Cirrocumulus Clouds?
Home - Education - Cloud Types - Cirrocumulus Clouds
Next Topic: Cirrostratus Clouds
Cirrocumulus clouds form at high altitudes (usually around 5 km)
and have distinguishing characteristics displayed in a fine layer of
small cloud patches. These small cloud patches are sometimes referred to as
"cloudlets" in relation to the whole cloud formation.
Cirrocumulus clouds are formed from ice crystals and water droplets. Often, the
water droplets in the cloud freeze into ice crystals and the cloud becomes a
cirrostratus cloud. Because of this common occurrence, cirrocumulus cloud
formations generally pass rapidly.
Next Topic: Cirrostratus Clouds
Weather Topic: What are Cirrus Clouds?
Home - Education - Cloud Types - Cirrus Clouds
Next Topic: Condensation
Cirrus clouds are high-level clouds that occur above 20,000 feet
and are composed mainly of ice crystals.
They are thin and wispy in appearance.
What do they indicate?
They are often the first sign of an approaching storm.
Next Topic: Condensation
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