Weather Alert in Colorado
Avalanche Watch issued February 16 at 9:59AM MST by NWS Denver CO
AREAS AFFECTED: Elkhead and Park Mountains; Northwestern San Juan Mountains; Southwest San Juan Mountains; West Jackson and West Grand Counties Above 9000 Feet; Eastern San Juan Mountains Above 10000 Ft
DESCRIPTION: AVABOU THE FOLLOWING MESSAGE IS TRANSMITTED AT THE REQUEST OF THE COLORADO AVALANCHE INFORMATION CENTER. ...AVALANCHE WATCH IN EFFECT FROM 9 AM WEDNESDAY TO 5 PM FRIDAY... *WHAT... Heavy snow and strong winds will result in HIGH (4 of 5) avalanche danger *WHERE... The San Juan Mountains and the Park Range *WHEN... Expect very dangerous avalanche conditions to begin Wednesday and last through Friday *IMPACTS... Large and dangerous avalanches will be easy to trigger. Large avalanches will run naturally. *PRECAUTION/PREPAREDNESS ACTIONS... Travel in backcountry avalanche terrain is not recommended from Wednesday through Friday. Avoid travel on and under slopes with a slope angle steeper than about 30 degrees. You can find more detailed information at colorado.gov/avalanche
INSTRUCTION: N/A
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Weather Topic: What are Nimbostratus Clouds?
Home - Education - Cloud Types - Nimbostratus Clouds
Next Topic: Precipitation
A nimbostratus cloud is similar to a stratus cloud in its formless,
smooth appearance. However, a nimbostratus cloud is darker than a stratus cloud,
because it is thicker.
Unlike a stratus cloud, a nimbostratus cloud typically brings with it the threat
of moderate to heavy precipitation. In some cases, the precipitation may evaporate
before reaching the ground, a phenomenon known as virga.
Next Topic: Precipitation
Weather Topic: What is Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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