Weather Alert in Minnesota
Dense Fog Advisory issued August 28 at 12:46AM CDT until August 28 at 9:00AM CDT by NWS Duluth MN
AREAS AFFECTED: Koochiching; North St. Louis; North Itasca; Central St. Louis; South Itasca
DESCRIPTION: * WHAT...Visibility one quarter mile or less in dense fog. * WHERE...Koochiching, Itasca, Central and North St. Louis Counties. This includes the Tribal Lands of the Bois Forte Band, Nett Lake, Lake Vermilion and, Deer Creek areas. Other locations including Voyageurs National Park. This also includes the Boundary Waters western area. * WHEN...Until 9 AM CDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
INSTRUCTION: If driving, slow down, use your low-beam headlights and fog lights, and leave plenty of distance ahead of you.
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Weather Topic: What are Cumulonimbus Clouds?
Home - Education - Cloud Types - Cumulonimbus Clouds
Next Topic: Cumulus Clouds
The final form taken by a growing cumulus cloud is the
cumulonimbus cloud, which is very tall and dense.
The tower of a cumulonimbus cloud can soar 23 km into the atmosphere, although
most commonly they stop growing at an altitude of 6 km.
Even small cumulonimbus clouds appear very large in comparison to other cloud types.
They can signal the approach of stormy weather, such as thunderstorms or blizzards.
Next Topic: Cumulus Clouds
Weather Topic: What is Drizzle?
Home - Education - Precipitation - Drizzle
Next Topic: Evaporation
Drizzle is precipitation in the form of water droplets which are
smaller than raindrops.
Drizzle is characterized by fine, gently falling droplets and typically does not
impact human habitation in a negative way. The exception to this is freezing drizzle,
a condition where drizzle freezes immediately upon reaching earth's surface.
Freezing drizzle is still less dangerous than freezing rain, but can
potentially result in hazardous road conditions.
Next Topic: Evaporation
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