Weather Alert in Alaska
Hydrologic Outlook issued August 25 at 12:32PM AKDT by NWS Anchorage AK
AREAS AFFECTED: Kuskokwim Valley West; Kuskokwim Valley East; Interior Kuskokwim Delta; Western Capes; Northern Bristol Bay Coast; Inland Bristol Bay
DESCRIPTION: ESFAFC Prolonged, widespread rainfall is expected across Southwest Alaska this week. Steadier rainfall, which can be moderate to heavy at times, is expected to begin Monday and last through at least Wednesday with showers lingering through the rest of the week. Widespread rainfall totals of 1.5 to 3 inches is expected with locally higher amounts possible. The highest rainfall totals of at least 2.5 to 4 inches is expected close to the mountains near Togiak and the Western Capes. Expect water levels to rise along small streams and rivers, especially in areas of steeper terrain.
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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