Weather Alert in Wisconsin

Recent Locations: Lake Hamilton, FL Plainfield, IL Chili, WI

Winter Storm Warning issued March 14 at 2:36AM CDT until March 16 at 7:00AM CDT by NWS Twin Cities/Chanhassen MN

AREAS AFFECTED: St. Croix; Pierce; Dunn; Pepin; Chippewa; Eau Claire

DESCRIPTION: ...POWERFUL WINTER STORM ON TRACK TO BRING EXTREME SNOW ACCUMULATIONS AND STRONG WINDS... ...A WINTRY MIX OF RAIN, FREEZING RAIN, AND SLEET LATE TONIGHT ACROSS SOUTHERN MINNESOTA... ...TRAVEL MAY BECOME IMPOSSIBLE LATE TONIGHT AND SUNDAY... .A major winter storm will move across the Upper Midwest starting late this afternoon and lasting through Sunday evening. The first concern is heavy snow with a broad area of 12 to 18 inches expected across central Minnesota and western Wisconsin. A narrow swath within the broader area may approach 2 feet in parts of far east central Minnesota and west central Wisconsin. Rates of 2 to 2.5 inches per hour are likely late tonight. A wintry mix of rain, freezing rain, and sleet is now expected to work north into southern Minnesota tonight. A half inch of sleet and a tenth of an inch of ice are expected from New Ulm to Red Wind and south. The wintry mix will turn to all snow Sunday morning. The second concern is increasing winds on Sunday. Even though the snow will be tapering off gradually throughout Sunday, northwest winds will increase to 30 to 40 mph. Some gusts of 50 to 55 mph are possible. The combination of falling snow, blowing snow, and gusty winds will reduce visibility and create blizzard conditions late Sunday morning through Sunday evening across western and southern Minnesota. Travel is expected to become very difficult or impossible late tonight through Sunday evening. In addition, the amount of water in the snowpack will make it very heavy, leading to the potential for infrastructure damage and a health hazard for those shoveling. * WHAT...Heavy snow and blowing snow expected. Total snow accumulations between 15 and 20 inches, with locally higher amounts possible. Winds gusting as high as 40 mph. * WHERE...Chippewa, Dunn, Eau Claire, Pepin, Pierce, and St. Croix Counties. * WHEN...From 7 PM this evening to 7 AM CDT Monday. * IMPACTS...Travel could be very difficult to impossible. Widespread blowing snow could significantly reduce visibility. The hazardous conditions will impact the Monday morning commute. Gusty winds could bring down tree branches.

INSTRUCTION: If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Call 5 1 1 or visit 511wi.gov for road conditions.

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Weather Topic: What are Cirrostratus Clouds?

Home - Education - Cloud Types - Cirrostratus Clouds

Next Topic: Cirrus Clouds

Cirrostratus clouds are high, thin clouds that form above 20,000 feet and are made mostly of ice crystals. They sometimes look like giant feathers, horse tails, or curls of hair in the sky. These clouds are pushed by the jet stream and can move at high speeds reaching 100 mph.

What do they indicate?
They indicate that a precipitation is likely within 24 hours.

Next Topic: Cirrus Clouds

Weather Topic: What is Condensation?

Home - Education - Precipitation - Condensation

Next Topic: Contrails

Condensation is the process which creates clouds, and therefore it is a crucial process in the water cycle. Condensation is the change of matter from a state of gas into a state of liquid, and it happens because water molecules release heat into the atmosphere and become organized into a more closely packed structure, what we might see as water droplets.

Water is always present in the air around us as a vapor, but it's too small for us to see. When water undergoes the process of condensation it becomes organized into visible water droplets. You've probably seen condensation happen before on the surface of a cold drink!

Next Topic: Contrails