Weather Alert in New York

Recent Locations: Riverhead, NY  

Flood Advisory issued June 10 at 8:55AM EDT until June 11 at 8:45AM EDT by NWS Buffalo NY

AREAS AFFECTED: Oswego, NY

DESCRIPTION: * WHAT...High flows along the Salmon River caused by excessive rainfall are expected. * WHERE...A portion of central New York, including the following county, Oswego. * WHEN...Until 845 AM EDT Wednesday. * IMPACTS...Flows will increase significantly today along the Salmon River. Flows are not expected to be high enough to result in flooding, but high flows and resulting strong current will create dangerous conditions in the river for shore fisherman and drift boats. * ADDITIONAL DETAILS... - At 850 AM EDT, Dam operators and emergency management report flows will increase significantly today due to planned releases from Lighthouse Hill and Salmon River Reservoirs. The releases follow heavy rainfall of 2 to 3 inches yesterday. - Salmon River is the most likely place to experience elevated flows. High flows will will continue, but no additional rainfall is expected. - Some locations that will experience high flows include... The Salmon River downstream of the Salmon River Reservoir and Lighthouse Hill Reservoir. - http://www.weather.gov/safety/flood

INSTRUCTION: Keep children away from storm drains, culverts, creeks and streams. Water levels can rise rapidly and sweep children away. Flooding is occurring or is imminent. It is important to know where you are relative to streams, rivers, or creeks which can become killers in heavy rains. Campers and hikers should avoid streams or creeks.

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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.

Next Topic: Sleet

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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