Weather Alert in Nebraska
Dust Advisory issued February 17 at 2:05PM MST until February 17 at 4:00PM MST by NWS Cheyenne WY
AREAS AFFECTED: Scotts Bluff, NE; Sioux, NE; Goshen, WY
DESCRIPTION: The National Weather Service in Cheyenne has issued a * Dust Advisory for... Northern Scotts Bluff County in the Panhandle of Nebraska... Southern Sioux County in the Panhandle of Nebraska... East central Goshen County in southeastern Wyoming... * Until 400 PM MST. * At 201 PM MST, an area of blowing dust was located between Torrington and Scottsbluff. HAZARD...Less than two miles visibility with strong wind in excess of 50 mph. SOURCE...Satellite imagery. IMPACT...Hazardous travel. Those driving along or near Highway 26 could see reduced visibility due to blowing dust. Locations impacted include... Scottsbluff, Torrington, Mitchell, Morrill, Lyman, Yoder, Henry, Huntley, Lake Minatare State Recreation Area, Lake Alice Number 2, Southern Hills Estates, Scotts Bluff County Fairground, Torrington Municipal Airport, Lake Alice, Scottsbluff Airport, and Goshen County Fairgrounds.
INSTRUCTION: Blowing dust brings reduced visibility, leading to dangerous driving conditions. If driving, avoid blowing dust if possible. If caught in dense blowing dust, pull off the road, turn off your lights and keep your foot off the brake.
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Weather Topic: What are Shelf Clouds?
Home - Education - Cloud Types - Shelf Clouds
Next Topic: Sleet
A shelf cloud is similar to a wall cloud, but forms at the front
of a storm cloud, instead of at the rear, where wall clouds form.
A shelf cloud is caused by a series of events set into motion by the advancing
storm; first, cool air settles along the ground where precipitation has just fallen.
As the cool air is brought in, the warmer air is displaced, and rises above it,
because it is less dense. When the warmer air reaches the bottom of the storm cloud,
it begins to cool again, and the resulting condensation is a visible shelf cloud.
Next Topic: Sleet
Weather Topic: What is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
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