Weather Alert in Alaska
Winter Weather Advisory issued March 18 at 9:41PM AKDT until March 20 at 4:00AM AKDT by NWS Juneau AK
AREAS AFFECTED: City and Borough of Juneau
DESCRIPTION: ...HIT OR MISS SNOW SHOWERS CONTINUE THROUGH THE WEEK... .Snow showers from the Gulf of Alaska will continue through Friday morning at least. Snowfall accumulations of 6 to 14 inches are expected through Friday, with some locally higher amounts possible. A steadier band of snow has set up near Juneau this evening, with 1 inch per hour snowfall rates. A short fused Winter Storm Warning has been issued for Juneau through Wednesday night. A more organized area of showers is expected to impact the NE gulf coast on Thursday bringing more intense snow falls which has prompted the addition of winter storm warnings for Yakutat and Pelican. However, accumulations will be limited during the daytime due to warmer temperatures as we are now into the latter half of March. In addition, snowfall accumulations will be widely variable across the area due to the hit or miss nature of the showers, however rates as high as 1 inch per hour and visibilities down to 1/2 mile or less will be possible within any heavier showers that repeatedly move over the same location. Advisories could be upgraded to short-fuse Winter Storm Warnings if heavier snow showers continue over the same area. A relative lull in the heaviest showers is likely for some areas on Friday, but more snow may sweep into the panhandle for the weekend. * WHAT...For the Winter Storm Warning, heavy snow, with 4 to 7 inches of snow accumulations through Wednesday night. For the Winter Weather Advisory, snow expected, with an additional 4 to 7 inches of snow accumulations Thursday morning through Thursday night. Visibilities reduced to 1/2 mile or less at times. * WHERE...City and Borough of Juneau. * WHEN...For the Winter Storm Warning, until 7 AM AKDT Thursday. For the Winter Weather Advisory, from 7 AM Thursday to 4 AM AKDT Friday. * IMPACTS...Travel could be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Snow has become more stratiform and steady Wednesday evening as a frontal boundary straddles the region and a wave passes through northern panhandle. Snow is expected to again become more showery and convective on Thursday. Amounts could be highly variable.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water with you in case of an emergency. Slow down and use caution while traveling. People are urged to prepare their property before the onset of winter weather. For the latest road conditions, where available, call 5 1 1 or visit 511.alaska.gov.
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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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