Weather Alert in Utah
Avalanche Advisory issued March 18 at 6:32PM MDT by NWS Salt Lake City UT
AREAS AFFECTED: Wasatch Mountains I-80 North; Wasatch Mountains South of I-80; Western Uinta Mountains; Wasatch Plateau/Book Cliffs; Central Mountains; Southern Mountains
DESCRIPTION: SABSLC * WHAT...The Utah Avalanche Center is issuing a Special Avalanche Advisory for all mountain regions across Utah beginning Thursday, March 19 through Sunday, March 22, as avalanche danger is expected to rise in the coming days. * WHERE...The mountains of Utah and southeastern Idaho. * WHEN...In effect from 6 AM MDT Thursday to 6 AM MDT Monday. * IMPACTS...Record-breaking warm temperatures will rapidly destabilize the snowpack across the state, increasing the likelihood of widespread, spontaneous, destructive wet avalanches. Wet avalances could occur on all aspects and at all elevations, including places that typically stay colder this time of year. Avoid travel on and below steep slopes, including runout zones and terrain traps.
INSTRUCTION: Backcountry travelers should consult www.utahavalanchecenter.org or call 1-888-999-4019 for more detailed information. This Bulletin does not apply to ski areas or highways where avalanche hazard reduction measures are performed.
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
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
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