Weather Alert in Wisconsin

Recent Locations: Markesan, WI   Cape Vincent, NY  
Current Alerts for Markesan, WI: High Wind Warning Winter Storm Watch

Winter Storm Warning issued March 13 at 2:06AM CDT until March 13 at 1:00PM CDT by NWS Green Bay WI

AREAS AFFECTED: Door

DESCRIPTION: * WHAT...For the Winter Storm Warning, heavy wet snow. Additional snow accumulations between 4 and 7 inches, highest across the northern Door Peninsula and Washington Island. Winds gusting as high as 45 mph. For the Winter Storm Watch, heavy snow possible. Total snow accumulations between 12 and 18 inches with localized totals in excess of 24 inches possible. Winds could gust as high as 45 mph. * WHERE...Door County. * WHEN...For the Winter Storm Warning, until 1 PM CDT this afternoon. For the Winter Storm Watch, from Saturday evening through Monday afternoon. * IMPACTS...For the Winter Storm Warning, plan on slippery road conditions. Patchy blowing and drifting snow could significantly reduce visibility. The hazardous conditions will impact the morning commute. Gusty winds could bring down tree branches. For the Winter Storm Watch Saturday night through Monday afternoon, the strong winds and weight of snow on tree limbs may down power lines and could cause sporadic power outages. Whiteout and near blizzard conditions are possible and may make travel treacherous and potentially life-threatening. Travel could be very difficult to impossible.

INSTRUCTION: Slow down and use caution while traveling. The latest road conditions can be obtained by calling 5 1 1. Monitor the latest forecasts for updates on the situation for Saturday night into Monday. People should consider delaying all travel. Motorists should use extreme caution if travel is absolutely necessary.

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Weather Topic: What are Contrails?

Home - Education - Cloud Types - Contrails

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

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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