Update at 6:55 p.m. — The Office of Personnel Management has announced that federal offices will be closed Monday.
The National Weather Service has upgraded its previous Winter Storm Watch for Arlington and the D.C. region to a Winter Storm Warning.
Forecasters are calling for 6 or more inches of snow between midnight tonight and Monday afternoon.
… WINTER STORM WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 6 PM EST MONDAY…
* PRECIPITATION TYPE… FREEZING RAIN… SLEET… AND HEAVY SNOW.
* ACCUMULATIONS… UP TO ONE TENTH INCH OF ICE… THEN 6 TO 10 INCHES OF SNOW.
* TIMING… RAIN CHANGES TO FREEZING RAIN AND SLEET FROM NORTH TO SOUTH AFTER MIDNIGHT TONIGHT… THEN BECOMES HEAVY SNOW LATE TONIGHT AND CONTINUING THROUGH MONDAY.
* TEMPERATURES… DROPPING FROM THE LOWER 30S AROUND MIDNIGHT TO THE MID 20S LATE TONIGHT… THEN LOWER 20S MONDAY.
* WINDS… NORTH 10 TO 15 MPH. GUSTS UP TO 25 MPH LATE TONIGHT AND MONDAY.
* IMPACTS… HAZARDOUS TRAVEL DUE TO ICE AND SNOW OVERNIGHT AND MONDAY. BOTH THE MONDAY MORNING AND AFTERNOON RUSH HOURS WILL BE AFFECTED. POWER OUTAGES ARE POSSIBLE WITH THE COMBINATION OF ICE AND HEAVY SNOW.
PRECAUTIONARY/PREPAREDNESS ACTIONS…
THIS WINTER STORM WARNING IS FOR HEAVY SNOW… SLEET… AND FREEZING RAIN AND MEANS SEVERE WINTER WEATHER CONDITIONS ARE EXPECTED. SIGNIFICANT AMOUNTS OF ICE AND SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS AND POTENTIALLY CAUSE POWER OUTAGES. ONLY TRAVEL IN AN EMERGENCY. IF YOU MUST TRAVEL… KEEP AN EXTRA FLASHLIGHT… FOOD… AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.