Temperature And Wind Chill Trends Through Mid-Week

As promised over the last several days, arctic air is on the move. The core of this arctic air will remain over the Great Lakes and southern Canada through mid-week, but it will still be very cold over the Ohio Valley Monday, Tuesday, and Wednesday.

As of 8pm Sunday night, temperatures are mostly in the 20s and 30s:


Most locations in the Ohio Valley are 10-25° colder than they were 24 hours ago:


Northwesterly flow has dominated for most of the day in and around Cincinnati, allowing the arctic air centered over southern Canada to be transported into the United States. As of 8pm Sunday night, most major cities in Canada are below zero:


It will be very cold Monday, and it will also be quite windy (especially during the afternoon); winds will likely be out of the west between 5 and 15mph Monday morning and between 15 and 25mph Monday afternoon. As a result, wind chills will be in the teens and single digits even though temperatures will be in the low to mid 20s all day:


The core of arctic air will dive farther south Monday night and Tuesday. Winds will be slightly weaker compared to Monday afternoon, but wind chills will still be between -10° and 10° from 7am to 7pm Tuesday:


Thanks to flow out of the east and southeast (instead of the northwest) and arctic air lifting north, Wednesday won’t be as cold. Winds will also relax some Wednesday thanks to high pressure moving in from the west. Temperatures are forecast to be in the teens and 20s Wednesday, and wind chills will be in the single digits and teens:


The National Weather Service Forecast Office in Wilmington may issue a Wind Chill Advisory for parts of the Tri-State Tuesday morning. A Wind Chill Advisory is issued when winds are expected to be at least 10mph and the wind chill is forecast to drop between -10° and -24°. The minimum wind chill Monday night or Tuesday morning should be around -10° in Cincinnati; -10° to -15° wind chills are possible north of Cincinnati.

Need to get prepared for the cold? Here are some cold safety tips from the Centers for Disease Control: http://www.bt.cdc.gov/disasters/winter/guide.asp

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