Weather Alert in Massachusetts

Recent Locations: Vineyard Haven, MA  

Flood Watch issued June 6 at 2:24AM EDT until June 7 at 12:00AM EDT by NWS Boston/Norton MA

AREAS AFFECTED: Western Franklin; Eastern Franklin; Northern Worcester; Central Middlesex County; Western Essex; Western Hampshire; Western Hampden; Eastern Hampshire; Eastern Hampden; Southern Worcester; Northwest Middlesex County

DESCRIPTION: * WHAT...Localized flash flooding caused by excessive rainfall is possible. * WHERE...Western, Central and interior northeast Massachusetts. * WHEN...From noon EDT today through this evening. * IMPACTS...Numerous showers and thunderstorms will develop this afternoon and persist into part of the evening. The strongest storms will be capable of producing torrential rainfall in a very short period of time. The potential exists for some locales to receive 2-3" of rain in under two hours. This will result in the potential for localized flash flooding particularly if this were to occur over a vulnerable urban center. * ADDITIONAL DETAILS... - http://www.weather.gov/safety/flood

INSTRUCTION: You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop.

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Weather Topic: What are Hole Punch Clouds?

Home - Education - Cloud Types - Hole Punch Clouds

Hole Punch Clouds Next Topic: Mammatus Clouds

A hole punch cloud is an unusual occurrence when a disk-shaped hole appears in a cirrostratus, cirrocumulus, or altocumulus cloud.

When part of the cloud forms ice crystals, water droplets in the surrounding area of the cloud evaporate. The effect of this process produces a large elliptical gap in the cloud. The hole punch cloud formation is rare, but it is not specific to any geographic area.

Other names which have been used to describe this phenomena include fallstreak hole, skypunch, and cloud hole.

Next Topic: Mammatus Clouds

Weather Topic: What are Nimbostratus Clouds?

Home - Education - Cloud Types - Nimbostratus Clouds

Nimbostratus Clouds Next Topic: Precipitation

A nimbostratus cloud is similar to a stratus cloud in its formless, smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud, because it is thicker.

Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat of moderate to heavy precipitation. In some cases, the precipitation may evaporate before reaching the ground, a phenomenon known as virga.

Next Topic: Precipitation

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