Extreme Cold Watch issued January 18 at 3:43PM EST until January 23 at 7:00AM EST by NWS Baltimore MD/Washington DC

* WHAT...
An extended period of temperatures up to 30 degrees below normal. Dangerously cold wind chills as low as 25 below zero possible. Wind chills as low as 30 below zero are possible for higher elevations.

* WHERE...
In Maryland, Extreme Western Allegany and Garrett Counties. In Virginia, Western Highland County. In West Virginia, Western Grant, Western Mineral, and Western Pendleton Counties.

* WHEN...
From late Sunday night through Thursday morning.

* IMPACTS...
Periods of dangerously cold wind chills as low as 25 below zero could cause frostbite on exposed skin in as little as 30 minutes. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. An extended period of well below freezing temperatures could cause ruptured water pipes.

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