Weather Alert in North Dakota
Special Weather Statement issued March 12 at 5:31PM CDT by NWS Bismarck ND
AREAS AFFECTED: Divide; Burke; Williams; Mountrail
DESCRIPTION: Snow is expected to end over northwest North Dakota early this evening. however strong winds gusting up to 45 mph will continue over the area through mid evening. In addition, falling temperatures through the evening will create icy roads where wet and snow covered roads freeze. The combination of snow and winds will occasionally reduce visibility as low as one half mile at times, especially in open country. Icy roads will likely linger into Friday morning. If you are planning to travel, be sure to keep up to date on the latest road conditions, and carry a winter survival kit in your vehicle. Use extra caution and be prepared for reduced visibilities and slippery roads.
INSTRUCTION: N/A
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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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