Weather Alert in Alaska
Hydrologic Outlook issued August 12 at 2:10PM AKDT by NWS Fairbanks AK
AREAS AFFECTED: South Slopes of the Western Brooks Range; Noatak Valley; Lower Kobuk Valley; Upper Kobuk Valleys
DESCRIPTION: ESFAFG A coastal storm is bringing heavy rain to the Lisburne Peninsula this evening that spreads east across the Western Brooks Range through Wednesday. Total rainfall is likely to exceed 2 inches for the south facing slopes of the far Western Brooks Range near Kivalina by Wednesday with lesser amounts farther east near Ambler. Localized areas could see up to 3 inches of total rainfall. Rain is expected to end Tuesday night near Point Hope and early Thursday morning near Ambler. Rapidly rising water levels are possible for smaller streams with a chance of minor flooding.
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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