Weather Alert in New York
Winter Weather Advisory issued February 18 at 4:11AM 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 one quarter 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 morning and evening commutes. * ADDITIONAL DETAILS...The highest risk for freezing rain in Erie County will be north of the Buffalo Airport and I-90, with a minimal 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 Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
Weather Topic: What is Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
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