Weather Alert in Montana
Winter Weather Advisory issued March 9 at 12:29PM MDT until March 11 at 8:00AM MDT by NWS Billings MT
AREAS AFFECTED: Southern Big Horn; Sheridan Foothills
DESCRIPTION: * WHAT...Snow expected. Total snow accumulations between 1 and 4 inches. * WHERE...In Montana, Southern Big Horn. In Wyoming, Sheridan Foothills. * WHEN...From midnight tonight to 8 AM MDT Wednesday. * IMPACTS...Plan on slick road conditions. The hazardous conditions will impact the Tuesday morning and evening commutes. * ADDITIONAL DETAILS...Precipitation will begin as rain this evening. Roads will become slick as temperatures fall tonight. Heaviest snowfall is expected during the day Tuesday.
INSTRUCTION: Slow down and use caution while traveling. For the latest road conditions, call 5 1 1. Be prepared for slick roads. Slow down and use caution while driving. If you are going outside, watch your first few steps taken on stairs, sidewalks, and driveways. These surfaces could be icy and slick, increasing your risk of a fall and injury.
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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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