Weather Alert in New York
Winter Weather Advisory issued February 18 at 10:05AM EST until February 19 at 1:00AM EST by NWS Buffalo NY
AREAS AFFECTED: Northern Erie; Wyoming
DESCRIPTION: * WHAT...Areas of freezing rain expected. Total ice accumulations of a few hundredths to around two tenths of an inch. * WHERE...Northern Erie and Wyoming Counties. The greatest ice accumulations are expected across the hilltops of northern Wyoming County. * WHEN...Until 1 AM EST Thursday. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Wednesday evening commute. * ADDITIONAL DETAILS...The highest risk for freezing rain in Erie County will be north of the Buffalo Airport and I-90 this afternoon and early this evening, with little to no risk for freezing rain across the City of Buffalo. Across Wyoming County, the freezing rain should remain isolated to the hilltops across the northern half of the county.
INSTRUCTION: Periods of freezing rain will result in slippery surfaces. Slow down and use caution while driving. Submit snow and ice reports through our website or social media.
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Weather Topic: What is Precipitation?
Home - Education - 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
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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