Weather Alert in Wisconsin
Special Weather Statement issued February 18 at 4:43AM CST by NWS La Crosse WI
AREAS AFFECTED: La Crosse; Monroe; Juneau; Adams; Vernon; Crawford; Richland; Grant
DESCRIPTION: The combination of low relative humidity values, warm temperatures, and west-southwesterly winds will result in elevated fire weather conditions from noon to 6 pm across southwest Wisconsin. Afternoon relative humidity values will fall to around 20 to 30 percent with winds of 20 to 30 mph, gusting 40 to 45 mph. Under these conditions, taller, dry vegetation could ignite quickly and initial fire ignition could quickly spread. Please exercise caution with any activities that involve outdoor fires or create sparks, including campfires, grilling, and operating large equipment. Cigarettes should be disposed of and extinguished properly. Please heed any local burn bans.
INSTRUCTION: N/A
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North America Water Vapor (Moisture)
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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
Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
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