Weather Alert in Michigan
Winter Storm Warning issued February 19 at 1:06AM EST until February 19 at 7:00AM EST by NWS Marquette MI
AREAS AFFECTED: Keweenaw; Houghton
DESCRIPTION: * WHAT...For the Winter Storm Warning, moderate to heavy snowfall and areas of blowing snow. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 45 mph. For the Winter Weather Advisory, moderate snowfall expected. Total snow accumulations up to two inches. Winds gusting as high as 35 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...For the Winter Storm Warning, until 7 AM EST this morning. For the Winter Weather Advisory, from 7 AM this morning to 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow will significantly reduce visibility. The hazardous conditions will impact the Thursday morning commute. Gusty winds could bring down tree branches.
INSTRUCTION: Slow down and use caution while traveling. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.
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Weather Topic: What are Contrails?
Home - Education - Cloud Types - Contrails
Next Topic: Cumulonimbus Clouds
A contrail is an artificial cloud, created by the passing of an
aircraft.
Contrails form because water vapor in the exhaust of aircraft engines is suspended
in the air under certain temperatures and humidity conditions. These contrails
are called exhaust contrails.
Another type of contrail can form due to a temporary reduction in air pressure
moving over the plane's surface, causing condensation.
These are called aerodynamic contrails.
When you can see your breath on a cold day, it is also because of condensation.
The reason contrails last longer than the condensation from your breath is
because the water in contrails freezes into ice particles.
Next Topic: Cumulonimbus Clouds
Weather Topic: What are Cumulus Clouds?
Home - Education - Cloud Types - Cumulus Clouds
Next Topic: Drizzle
Cumulus clouds are fluffy and textured with rounded tops, and
may have flat bottoms. The border of a cumulus cloud
is clearly defined, and can have the appearance of cotton or cauliflower.
Cumulus clouds form at low altitudes (rarely above 2 km) but can grow very tall,
becoming cumulus congestus and possibly the even taller cumulonimbus clouds.
When cumulus clouds become taller, they have a greater chance of producing precipitation.
Next Topic: Drizzle
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