Populate Wind Chill Advisory Remains In Effect Thru 10 AM

Wind Chill Advisory Remains In Effect Thru 10 AM Wednesday For Missouri the Bootheel Time/Date Auto Populate Click for a description of this product C...

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National Weather Service City,Louis, St. StateMO

Situation Report Saturday, January 27, 2018 10:59 AM

[Hazard Headline] Snow Potential for Accumulating

Message of the Day: A storm system will likely bring wintry precipitation to portions of the area from late Wednesday night through Thursday night, especially for areas south of Interstate 70. There is potential for accumulating snow with this system. Important Forecast Changes Updated graphics.

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National Weather Service St. Louis, MO

Situation Report Saturday, January 27, 2018 10:59 AM

Potential for Accumulating Snow Key Points Accumulating snow could make travel hazardous. Portions of this event could also occur during rush hour.

Impact Severity Limited

Elevated

Moderate to high confidence of occurrence of some wintry precipitation but lower confidence on where accumulating snow may occur.

Forecaster Confidence

Low

High

Timing Snow Begins

12 AM

Late Wednesday Night

6 AM

Thursday Morning

Precipitation expected to develop late Wednesday night and early Thursday morning. Highest probability of snow will be from late Thursday morning through Thursday afternoon. Gradual exit of wintry precipitation during Thursday night.

12 PM

Thursday Afternoon

Thursday Night 6 AM

Snow Ends

6 PM

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Situation Report

National Weather Service St. Louis, MO

Saturday, January 27, 2018 10:59 AM

Message of the Day: A storm system will likely bring wintry precipitation to portions of the area from late Wednesday night through Thursday night, especially for areas south of Interstate 70. There is potential for accumulating snow with this system. Uncertainty exists with regard to where and how much snow will occur.

Winter Weather Quick Facts and Preparedness: Quick facts you should know about winter weather: • Snow can occur at temperatures as high as 46 degrees if conditions are right. • Blizzard conditions are met when visibility in falling and blowing snow reaches ¼ mile or less and sustained wind speeds of 35 mph or greater occur for 3 hours or more. • As little as 1/16” of ice can begin to impact roadways and sidewalks. • As the wind increases, the body is cooled at a faster rate. The “wind chill” is a way for meteorologists to communicate what the combination of wind and temperature “feels like” to exposed skin.

Preparedness: - A Winter Storm Watch is issued when conditions are favorable for significant winter weather and/or blizzard conditions. Time to prepare! - A Winter Storm Warning is issued when a combination of heavy snow, blowing snow, and possibly ice mixed with snow is expected to impact the area. Time to act! - A Blizzard Warning is issued when the combination of strong wind, low visibility, and heavy snow will significantly impact daily life.

Find out more information on our web page: www.weather.gov/lsx/ The State has an Emergency Management page set up Here: www.em.gov Follow us on Facebook and Twitter for more up to date information: @NWSStLouis

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National Weather Service St. Louis

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