Weather Alert in Massachusetts
Coastal Flood Advisory issued August 21 at 2:13AM EDT until August 23 at 2:00AM EDT by NWS Boston/Norton MA
AREAS AFFECTED: Dukes; Nantucket
DESCRIPTION: * WHAT...For the High Surf Advisory, large breaking waves of 6 to 20 feet in the surf zone. For the first Coastal Flood Advisory, up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (3.5 to 5.4 feet Mean Lower Low Water). For the second Coastal Flood Advisory, up to one half foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways (3.4 to 5.1 feet Mean Lower Low Water). * WHERE...Dukes and Nantucket MA Counties. * WHEN...For the High Surf Advisory, until 8 PM EDT Saturday. For the first Coastal Flood Advisory, from 10 PM this evening to 2 AM EDT Friday. For the second Coastal Flood Advisory, from 10 PM Friday to 2 AM EDT Saturday. * IMPACTS...Roads remain passable. Low lying areas and roads near Nantucket Harbor, including Easy Street, may experience pockets of shallow flooding less than one foot deep. Dangerous swimming and surfing conditions and localized beach erosion.
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. Inexperienced swimmers should remain out of the water due to dangerous surf conditions.
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Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
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