Winter Weather Advisory for the DC Metro today; light icing possible

Winter Weather Advisory from 1pm - 9pm Monday

A Winter Weather Advisory is in effect from 1 p.m. through 9 p.m. for the majority of the DC Metro Monday. While precipitation will be light in nature, it’s often these weak disturbances that end up having a major impact on the afternoon and evening commutes.

Temperatures this morning are in the teens and low 20s. This deep freeze has continued for several days, so our thoughts are that once precipitation begins, ice accretion will as well.

Timing the rain, it should begin after 11am west of the Blue Ridge, 1pm for the western suburbs such as Loudoun and Frederick Counties, and closer to 2-3pm in the DC Metro. Light rain is anticipated with most model guidance depicting a tenth of an inch or less.

Even with light rain, surfaces below freezing will be impacted with a light glaze to 0.05” of ice. This will lead to slippery spots this afternoon and evening for commuters. Many schools have decided to close for the day which is probably the right call.

Rain should come to an end later this evening and a few slick spots will continue overnight with lows in the upper 20s to low 30s.

Much milder air will move into the area Tuesday through the end of the week. Tomorrow should be the first time in 15 days with temperatures above normal for the day. Highs may even approach the 60 degree mark by the end of the week!

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