Weather Alert in Washington
Red Flag Warning issued June 15 at 6:12PM PDT until June 16 at 9:00PM PDT by NWS Pendleton OR
AREAS AFFECTED: Kittitas Valley
DESCRIPTION: ...BREEZY TO WINDY WITH LOW RELATIVE HUMIDITY MONDAY AFTERNOON AND EVENING... .Breezy to windy northwest winds are expected through the Kittitas Valley Monday afternoon and evening. Coupled with low relative humidity, this will facilitate an increased risk of wildfire spread. The National Weather Service in Pendleton has issued a Red Flag Warning for wind and low relative humidity, which is in effect from 2 PM to 9 PM PDT Monday. * AFFECTED AREA...Fire Weather Zone 690 Kittitas Valley. * TIMING...From 2 PM to 9 PM PDT Monday. * WINDS...Northwest 20 to 30 mph with gusts up to 40 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fire that develops will catch and spread quickly. Outdoor burning is not recommended.
INSTRUCTION: A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. A combination of strong winds, low relative humidity, and warm temperatures can contribute to extreme fire behavior.
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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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