Weather Alert in Washington
Fire Weather Watch issued September 2 at 2:20AM PDT until September 4 at 9:00PM PDT by NWS Spokane WA
AREAS AFFECTED: East Washington Central Cascades
DESCRIPTION: The National Weather Service in Spokane has issued a Fire Weather Watch for Hot, dry, unstable conditions, which is in effect from Wednesday morning through Thursday evening. * Affected Area: East Washington Central Cascades (Zone 696). * Winds: Terrain driven winds 2 to 5 mph becoming northwest 5 to 10 mph in the evening. * Relative Humidities: Minimum humidity: 13 to 19 percent. Humidity recoveries on midslopes within thermal belts of 25-35% * Temperatures: 85 to 100 degrees. * Impacts: Hot, dry, unstable conditions will lead to the potential for rapid fire growth on new or existing fires.
INSTRUCTION: A Fire Weather Watch means that critical fire weather conditions are forecast to occur. Listen for later forecasts and possible Red Flag Warnings.
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Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
Weather Topic: What is Evaporation?
Home - Education - Precipitation - Evaporation
Next Topic: Fog
Evaporation is the process which returns water from the earth
back to the atmosphere, and is another crucial process in the water cycle.
Evaporation is the transformation of liquid into gas, and it happens because
molecules are excited by the application of energy and turn into vapor.
In order for water to evaporate it has to be on the surface of a body of water.
Next Topic: Fog
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