Weather Alert in New York

Recent Locations: Peru, NY   East Hampton, NY   Altona, NY  

Flood Warning issued March 31 at 9:53PM EDT until April 3 at 8:00AM EDT by NWS Binghamton NY

AREAS AFFECTED: Cortland, NY

DESCRIPTION: ...Forecast flooding changed from Minor to Moderate severity and increased in duration for the following rivers in New York... Tioughnioga River At Cortland affecting Cortland County. * WHAT...Moderate flooding is forecast. * WHERE...Tioughnioga River at Cortland. * WHEN...From this evening to Friday morning. * IMPACTS...At 10.0 feet, Moderate flood stage. Some flooding begins to affect roads and basements in the Village of Marathon and the Yaman Park area of Cortland. * ADDITIONAL DETAILS... - At 9:00 PM EDT Tuesday the stage was 7.9 feet. - Forecast...The river is expected to rise to a crest of 10.0 feet early tomorrow afternoon. It will then fall below flood stage Thursday evening. - Flood stage is 8.0 feet. - https://www.weather.gov/safety/flood

INSTRUCTION: Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Please report observed flooding to local emergency services or law enforcement and request they pass this information to the National Weather Service when you can do so safely. Additional information is available at www.weather.gov. The next statement will be issued Wednesday morning at 1000 AM EDT.

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Weather Topic: What is Precipitation?

Home - Education - Precipitation - Precipitation

Precipitation Next Topic: Rain

Precipitation can refer to many different forms of water that may fall from clouds. Precipitation occurs after a cloud has become saturated to the point where its water particles are more dense than the air below the cloud.

In most cases, precipitation will reach the ground, but it is not uncommon for precipitation to evaporate before it reaches the earth's surface. When precipitation evaporates before it contacts the ground it is called Virga. Graupel, hail, sleet, rain, drizzle, and snow are forms of precipitation, but fog and mist are not considered precipitation because the water vapor which constitutes them isn't dense enough to fall to the ground.

Next Topic: Rain

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.

Next Topic: Sleet

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