Federal employees have the option of using unscheduled leave or unscheduled telework.
All D.C. public schools are still closed for winter break.
Some of the coldest January temperatures, high-speed wind and slick roads are to be expected Friday, and now the National Weather Service is predicting more snow than originally expected.
The National Weather Service issued a winter weather advisory for Thursday night, increasing the predicted snow fall to 1-3 inches which will likely turn out to be 3 inches for parts of Northwest D.C., the service said.
Snow should stop falling around 4 a.m. Friday morning but temperatures will continue to drop, creating icy conditions.
"Commuters should prepare to leave early and be especially cautious during the AM rush hour commute on Friday," the NWS said.
The frigid, icy conditions will be worsened by extreme wind chill, the NWS said.
"Please make sure to wear multiple layers of clothing as well as a hat and gloves," the NWS advises.
The National Weather Service has issued a windy advisory for the entire Washington-Baltimore region from 2 a.m. to noon.
Expect sustained winds between 20 and 30 mph, with gusts in some areas up to 50 mph, the advisory states.The high winds can down tree limbs and power lines and cause difficulty driving, according to the National Weather Service. The service recommends securing outdoor furniture.
Rain and snow falling Thursday night will likely stay frozen through Friday where temperatures will stay in the twenties.
The temperature drop Thursday night and Friday has garnered much attention from weather watchers.
According to NWS, Thursday night's temperatures were around 20 degrees with winds from 19 to 24 mph.
Friday temperatures will stay around 21 degrees with the same level of wind chill, and Friday night temperatures will drop to around 17 degrees, the NWS said.
Icy roads should remain a concern. Here are some winter driving tips.
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