Weather Alert in Washington
Fire Weather Watch issued July 30 at 4:07AM PDT until July 31 at 8:00PM PDT by NWS Spokane WA
AREAS AFFECTED: East Portion of North Cascades National Park / Lake Chelan National Recreation Area; East Washington North Cascades; Okanogan Highlands & Kettle Mountains; Colville Reservation; Okanogan Valley; Methow Valley
DESCRIPTION: ...HOT, DRY, AND UNSTABLE CONDITIONS WITH ISOLATED DRY THUNDERSTORMS WEDNESDAY AFTERNOON AND EVENING FOR ZONE 696... ...POTENTIAL FOR SCATTERED DRY THUNDERSTORMS FOR 697, 698, 699, 702, 703, 704 THURSDAY AFTERNOON AND EARLY EVENING... The National Weather Service in Spokane has issued a Fire Weather Watch for ABUNDANT LIGHTNING, which is in effect from Thursday afternoon through Thursday evening. * Affected Area: East Portion of North Cascades National Park/Lake Chelan National Recreation Area (Zone 697), East Washington North Cascades (Zone 698), Okanogan Highlands and Kettle Mountains (Zone 699), Colville Reservation (Zone 702), Okanogan Valley (Zone 703) and Methow Valley (Zone 704). * Timing: 1 PM to 8 PM Thursday * Thunderstorms: Scattered thunderstorms with abundant lightning. * Outflow Winds: Outflow boundaries near storms will bring potential for erratic wind gusts 30 to 50 mph and could travel quite a distance from the core of the storm. * Impacts: Very warm and dry conditions will be in place as storms develop Thursday afternoon. A mix of wet and dry thunderstorms combined with dry fuels will lead to the potential for new fire starts that may overwhelm initial attack capabilities. Gusty outflow winds could may result in rapid spread with any new starts.
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 is Snow?
Home - Education - Precipitation - Snow
Next Topic: Stratocumulus Clouds
Snow is precipitation taking the form of ice crystals. Each ice crystal, or snowflake,
has unique characteristics, but all of them grow in a hexagonal structure.
Snowfall can last for sustained periods of time and result in significant buildup
of snow on the ground.
On the earth's surface, snow starts out light and powdery, but as it begins to melt
it tends to become more granular, producing small bits of ice which have the consistency of
sand. After several cycles of melting and freezing, snow can become very dense
and ice-like, commonly known as snow pack.
Next Topic: Stratocumulus Clouds
Weather Topic: What are Stratus Clouds?
Home - Education - Cloud Types - Stratus Clouds
Next Topic: Wall Clouds
Stratus clouds are similar to altostratus clouds, but form at a
lower altitude and are identified by their fog-like appearance, lacking the
distinguishing features of most clouds.
Stratus clouds are wider than most clouds, and their base has a smooth, uniform
look which is lighter in color than a nimbostratus cloud.
The presence of a stratus cloud indicates the possibility of minor precipitation,
such as drizzle, but heavier precipitation does not typically arrive in the form
of a stratus cloud.
Next Topic: Wall Clouds
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