Weather Alert in Utah
Wind Advisory issued May 12 at 11:59PM MDT until May 13 at 9:00PM MDT by NWS Salt Lake City UT
AREAS AFFECTED: Castle Country; San Rafael Swell; Upper Sevier River Valleys; Bryce Canyon Country; South Central Utah; Capitol Reef National Park and Vicinity; Western Canyonlands; Glen Canyon Recreation Area/Lake Powell
DESCRIPTION: * WHAT...Southwest winds 25 to 35 mph with gusts up to 50 mph expected. * WHERE...Castle Country, San Rafael Swell, Bryce Canyon Country, Capitol Reef National Park and Vicinity, Glen Canyon Recreation Area/Lake Powell, South Central Utah, Upper Sevier River Valleys, and Western Canyonlands. * WHEN...From 9 AM to 9 PM MDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects and a few power outages may result. Strong winds and rough waves on area lakes will create hazardous conditions for small craft.
INSTRUCTION: Winds this strong can make driving difficult, especially for high profile vehicles and vehicles with trailers. Use extra caution. Secure outdoor objects. Recreational boaters on area lakes should take shelter until winds subside.
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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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