Weather Alert in New York
Winter Storm Watch issued February 19 at 1:04AM EST until February 21 at 10:00AM EST by NWS Albany NY
AREAS AFFECTED: Northern Warren
DESCRIPTION: * WHAT...Heavy mixed precipitation possible. Total snow accumulations over 7 inches possible. Ice accumulations around a glaze possible. * WHERE...Northern Warren County. * WHEN...From Friday morning through Saturday morning. * IMPACTS...Travel could be difficult. The hazardous conditions could impact the Friday evening commute. * ADDITIONAL DETAILS...Precipitation will likely begin as wet snow before transitioning briefly over to a wintry mix during the afternoon hours for a mix of freezing rain/rain/snow before returning back to all snow for Friday evening. Exact amounts will greatly depend on when moisture arrives and how warm the air temperatures become.
INSTRUCTION: Monitor the latest forecasts for updates on this situation. Be prepared for slippery roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slippery, increasing your risk of a fall and injury.
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North America Water Vapor (Moisture)
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - 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
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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