Weather Alert in Alaska
Winter Storm Warning issued February 21 at 10:27AM AKST until February 25 at 6:00AM AKST by NWS Fairbanks AK
AREAS AFFECTED: Upper Chena River Valley; Tanana Flats; Eielson AFB and Salcha; Goldstream Valley and Nenana Hills; Chatanika River Valley; Two Rivers; Fairbanks Metro Area; Nenana; Central Interior
DESCRIPTION: * WHAT...Heavy snow expected. Total snow accumulations between 12 and 18 inches. * WHERE...Central Interior, Nenana, Fairbanks North Star Borough * WHEN...From 6 AM Sunday to 6 AM AKST Wednesday. * IMPACTS...Travel could be very difficult. * ADDITIONAL DETAILS...Multiple days of moderate snowfall expected beginning Sunday morning and lasting through Tuesday night. Increased snow on frozen rivers and streams could lead to areas of overflow. Use caution while traveling on and along frozen waterways.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Visit 511.alaska.gov or call 5 1 1 for the latest road conditions.
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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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