Weather Alert in Idaho
Hydrologic Outlook issued August 25 at 11:47AM MDT by NWS Missoula MT
AREAS AFFECTED: Clearwater, ID; Idaho, ID; Lemhi, ID; Deer Lodge, MT; Granite, MT; Mineral, MT; Missoula, MT; Powell, MT; Ravalli, MT; Silver Bow, MT
DESCRIPTION: ESFMSO Where: Lemhi, Idaho, and Clearwater Counties in Idaho Ravalli, Mineral, Missoula, Granite, Deer Lodge, Powell, and Silverbow Counties in Montana What: Confidence continues to trend higher that Monsoon moisture will be spreading north into the Northern Rockies by Wednesday, bringing a chance for scattered thunderstorms. These thunderstorms will be capable of producing rain rates in excess of one half inch per hour. The result will be the potential for rock and debris slides in steep terrain along Forest Service roads and recent burn scar areas, as well as Highway 93 from Riggins to Whitebird in Idaho and Skalkaho Road in Montana. Consider delaying any backcountry travel for Wednesday and Thursday of this week.
INSTRUCTION: N/A
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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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