Weather Alert in Alaska
Winter Storm Warning issued February 27 at 3:19PM AKST until February 28 at 11:00PM AKST by NWS Juneau AK
AREAS AFFECTED: City and Borough of Juneau
DESCRIPTION: ...CENTRAL AND SOUTHERN PANHANDLE SNOW SATURDAY WITH POTENTIAL FOR MORE SNOW SUNDAY... .Light scattered to numerous snow showers will pass over the region Friday night with accumulations of up to 2 inches. Through Saturday morning, a low will track across the central gulf and bring steady accumulating snow to the area with rates increasing through the afternoon. As the low center tracks eastward through Saturday afternoon and evening, south to southwest wind will cause temperatures to warm over the southern outer coast with a mix or change to rain. Snow will then end on the NW side of the low, from Sitka to Juneau northward. Moisture will decrease overnight Saturday across the south, but then redevelop on Sunday as another system moves in. The rain/snow line will likely hover in vicinity of Sumner Strait Sunday into Monday with potential additional heavy snow for the Petersburg and Wrangell areas and lighter snow northward. A separate low pressure system looks to affect the region on Tuesday with potential for snow to push northward again. * WHAT...Heavy snow expected. Total snow accumulations of 6 to 12 inches. * WHERE...City and Borough of Juneau. * WHEN...From 6 AM to 11 PM AKST Saturday. * IMPACTS...Travel will be difficult. * ADDITIONAL DETAILS...Heaviest snowfall rates will be mid day Saturday into the early evening.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water with you in case of an emergency. 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 Sleet?
Home - Education - Precipitation - Sleet
Next Topic: Snow
Sleet is a form of precipitation in which small ice pellets are the primary
components. These ice pellets are smaller and more translucent than hailstones,
and harder than graupel. Sleet is caused by specific atmospheric conditions and
therefore typically doesn't last for extended periods of time.
The condition which leads to sleet formation requires a warmer body of air to be
wedged in between two sub-freezing bodies of air. When snow falls through a warmer
layer of air it melts, and as it falls through the next sub-freezing body of air
it freezes again, forming ice pellets known as sleet. In some cases, water
droplets don't have time to freeze before reaching the surface and the result is
freezing rain.
Next Topic: Snow
Weather Topic: What are Stratocumulus Clouds?
Home - Education - Cloud Types - Stratocumulus Clouds
Next Topic: Stratus Clouds
Stratocumulus clouds are similar to altocumulus clouds in their
fluffy appearance, but have a slightly darker shade due to their additional mass.
A good way to distinguish the two cloud types is to hold your hand out and measure
the size of an individual cloud; if it is the size of your thumb it is generally
an altocumulus cloud, if it is the size of your hand it is generally a
stratocumulus cloud.
It is uncommon for stratocumulus clouds to produce precipitation, but if they do
it is usually a light rain or snow.
Next Topic: Stratus Clouds
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