WHAT
For the first Cold Weather Advisory, very cold wind chills as low as 9 below zero. For the second Cold Weather Advisory, very cold wind chills as low as 9 below zero expected.

WHERE
Portions of DC, central, northeast, northern, and southern Maryland, and northern Virginia.

WHEN
For the first Cold Weather Advisory, until 11 AM EST this morning. For the second Cold Weather Advisory, from 7 PM this evening to 11 AM EST Friday.

IMPACTS
The cold wind chills as low as 9 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure.

ADDITIONAL DETAILS
Additional Cold Weather Headlines are expected at times through the end of the week as the region remains in an Arctic airmass.

PRECAUTIONARY/PREPAREDNESS ACTIONS
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

WHAT
For the first Cold Weather Advisory, very cold wind chills as low as 9 below zero. For the second Cold Weather Advisory, very cold wind chills as low as 9 below zero expected.

WHERE
Portions of DC, central, northeast, northern, and southern Maryland, and northern Virginia.

WHEN
For the first Cold Weather Advisory, until 11 AM EST this morning. For the second Cold Weather Advisory, from 7 PM this evening to 11 AM EST Friday.

IMPACTS
The cold wind chills as low as 9 below zero could result in hypothermia if precautions are not taken. Frostbite and hypothermia will occur if unprotected skin is exposed to these temperatures. Wind chill values can lead to hypothermia with prolonged exposure. Very cold temperatures can lead to hypothermia with prolonged exposure.

ADDITIONAL DETAILS
Additional Cold Weather Headlines are expected at times through the end of the week as the region remains in an Arctic airmass.

PRECAUTIONARY/PREPAREDNESS ACTIONS
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves. Keep pets indoors as much as possible. Make sure outdoor animals have a warm, dry shelter, food, and unfrozen water. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.