Weather Alert in Utah
Freeze Warning issued April 3 at 8:44AM MDT until April 4 at 9:00AM MDT by NWS Salt Lake City UT
AREAS AFFECTED: Tooele and Rush Valleys; Eastern Box Elder County; Northern Wasatch Front; Salt Lake Valley; Utah Valley; San Rafael Swell; Western Canyonlands
DESCRIPTION: * WHAT...Temperatures will drop below freezing again tonight. Along the Wasatch Front, Tooele Valley, San Rafael Swell, and Western Canyonlands, expect low temperatures in the mid 20s to low 30s, and in the Rush Valley, temperatures will drop into the mid teens. * WHERE...The Wasatch Front, Tooele and Rush Valleys, San Rafael Swell, and Western Canyonlands. * WHEN...From 8 PM this evening to 9 AM MDT Saturday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
INSTRUCTION: Take steps now to protect tender plants from the cold. Drain in-ground sprinkler systems and cover above ground pipes.
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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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