Weather Alert in Minnesota
Winter Storm Warning issued February 16 at 10:17PM CST until February 19 at 12:00PM CST by NWS Duluth MN
AREAS AFFECTED: Central St. Louis; Carlton/South St. Louis
DESCRIPTION: * WHAT...Heavy snow with light ice accumulations expected. Total snow accumulations between 5 and 8 inches except between 8 and 11 inches for the higher terrain northeast of Duluth. Ice accumulations around one tenth of an inch. East winds gusting as high as 55 mph. * WHERE...Carlton and South and Central St. Louis Counties. This includes the Tribal Lands of the Fond du Lac Band and the Bois Forte Band, Lake Vermilion area. * WHEN...From 6 PM Tuesday to noon CST Thursday. * IMPACTS...The strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Travel could be very difficult. The hazardous conditions could impact the Wednesday morning and evening commutes. * ADDITIONAL DETAILS...The strongest winds are expected Tuesday evening through Wednesday morning from the east off Lake Superior. Near whiteout conditions are possible for a few hour period late Tuesday night as high snowfall rates could combine with those peak winds gusting to 55 mph.
INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 511 or visit www.511mn.org for Minnesota road information. Do not touch downed lines and report any power outages to your electric company. Slick roadways and the possibility of downed trees and power lines may create hazardous travel conditions.
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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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