Weather Alert in Utah
Red Flag Warning issued August 2 at 1:42PM MDT until August 2 at 10:00PM MDT by NWS Salt Lake City UT
AREAS AFFECTED: Central Utah Mountains; Color Country Mountains
DESCRIPTION: The National Weather Service in Salt Lake City has issued a Red Flag Warning for wind and low relative humidity, which is in effect from noon Monday to 9 PM MDT Tuesday. The Fire Weather Watch is no longer in effect. * AFFECTED AREA...Fire Weather Zone 493 Central Utah Mountains and Fire Weather Zone 496 Color Country Mountains. * WINDS...Southwest 10 to 20 mph with gusts to 25 to 35 mph both Saturday, Monday, and Tuesday afternoons. Lighter winds are forecast for Sunday, remaining in the 5 to 10 mph range with gusts of 10 to 20 mph. * RELATIVE HUMIDITY...Falling into the 5 to 9 percent range each afternoon with very poor overnight recoveries. Some elevations above 8500 feet may see minimum humidities closer to 10 to 15 percent Tuesday afternoon and evening. * IMPACTS...Critical fire weather conditions are expected. Any new fire starts or existing fires may spread rapidly.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now...or are imminent. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.
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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
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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