Weather Alert in Alaska
Winter Storm Warning issued March 3 at 2:52PM AKST until March 4 at 12:00PM AKST by NWS Juneau AK
AREAS AFFECTED: Glacier Bay; Eastern Chichagof Island; Cape Fairweather to Lisianski Strait; City and Borough of Juneau
DESCRIPTION: ...SNOW FOR THE NORTHERN AND CENTRAL PANHANDLE THROUGH WEDNESDAY... The next surge of snow is expected this evening as the main low moves closer to the panhandle bringing more moisture to the area. This next surge of moisture is expected to bring increasing snowfall rates to the Icy Strait corridor this evening. Along with this second wave of snow, the original band of snow is expected to set up around the Yakutat area bringing more accumulating snow to the area with the heaviest parts to the west of Yakutat. * WHAT...Heavy snow. Additional snow accumulations of 4 to 10 inches. * WHERE...Glacier Bay, Eastern Chichagof Island, Cape Fairweather to Lisianski Strait and City and Borough of Juneau. * WHEN...Until noon AKST Wednesday. * IMPACTS...Travel will be very difficult. The hazardous conditions could impact the morning or evening commute. * ADDITIONAL DETAILS...Heaviest snowfall rates are expected this afternoon into Wednesday morning, with snowfall rates of an inch an hour possible. Gusty winds around downtown Juneau and Douglas could cause some areas of blowing snow.
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 Rain?
Home - Education - Precipitation - Rain
Next Topic: Shelf Clouds
Precipitation in the form of water droplets is called rain.
Rain generally has a tendency to fall with less intensity over a greater period
of time, and when rainfall is more severe it is usually less sustained.
Rain is the most common form of precipitation and happens with greater frequency
depending on the season and regional influences. Cities have been shown to have
an observable effect on rainfall, due to an effect called the urban heat island.
Compared to upwind, monthly rainfall between twenty and forty miles downwind of
cities is 30% greater.
Next Topic: Shelf Clouds
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
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