Weather Alert in New York

Current Alerts for Williamstown, NY: Flood Watch

Flood Warning issued March 31 at 10:29PM EDT until April 2 at 11:14AM EDT by NWS Buffalo NY

AREAS AFFECTED: Erie, NY; Genesee, NY; Niagara, NY; Wyoming, NY

DESCRIPTION: ...The National Weather Service in Buffalo NY has issued a Flood Warning for the following rivers in New York... Tonawanda Creek At Batavia affecting Erie, Niagara, Genesee and Wyoming Counties. For the Tonawanda Creek...including Batavia...Moderate flooding is forecast. * WHAT...Moderate flooding is forecast. * WHERE...Tonawanda Creek at Batavia. * WHEN...From late tonight to late Thursday morning. * IMPACTS...At 10.0 feet, Moderate flood, flooding along West Main Street and South Main Street in Batavia and along the creek from Batavia to East Pembroke, extending to the Tonawanda Indian Reservation. Flooding will mainly impact roads, with some residential and commerical flooding possible. * ADDITIONAL DETAILS... - At 10:00 PM EDT Tuesday the stage was 4.47 feet. - Bankfull stage is 8.0 feet. - Forecast...The river is expected to rise above flood stage late tonight to a crest of 11.5 feet early Wednesday afternoon. It will then fall below flood stage early Thursday morning. - Flood stage is 9.0 feet. - Flood History...This crest compares to a previous crest of 11.3 feet on 05/05/1976. - http://www.weather.gov/safety/flood

INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Caution is urged when walking near riverbanks. Be especially cautious at night when it is harder to recognize the dangers of flooding. Additional information is available at www.weather.gov. The next statement will be issued Wednesday morning by 1030 AM EDT.

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Weather Topic: What are Shelf Clouds?

Home - Education - Cloud Types - Shelf Clouds

Shelf Clouds Next Topic: Sleet

A shelf cloud is similar to a wall cloud, but forms at the front of a storm cloud, instead of at the rear, where wall clouds form.

A shelf cloud is caused by a series of events set into motion by the advancing storm; first, cool air settles along the ground where precipitation has just fallen. As the cool air is brought in, the warmer air is displaced, and rises above it, because it is less dense. When the warmer air reaches the bottom of the storm cloud, it begins to cool again, and the resulting condensation is a visible shelf cloud.

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Weather Topic: What is Snow?

Home - Education - Precipitation - Snow

Snow Next Topic: Stratocumulus Clouds

Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake, has unique characteristics, but all of them grow in a hexagonal structure. Snowfall can last for sustained periods of time and result in significant buildup of snow on the ground.

On the earth's surface, snow starts out light and powdery, but as it begins to melt it tends to become more granular, producing small bits of ice which have the consistency of sand. After several cycles of melting and freezing, snow can become very dense and ice-like, commonly known as snow pack.

Next Topic: Stratocumulus Clouds

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