Update, 5:30 p.m. Monday: The National Weather Service has now upgraded the forecast for Tuesday to a Winter Storm Warning. Conditions are likely for a significant storm with four to six inches of snow.
Original Story — The National Weather Service has issued a Winter Storm Watch for the area from Tuesday morning through Tuesday evening. Reston Now will keep you updated with any changes and school closings.
Here is the advisory, which predicts as much as five inches of snow for Northern Virginia:
WINTER STORM WATCH IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING…
THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS ISSUED A WINTER STORM WATCH… WHICH IS IN EFFECT FROM TUESDAY MORNING THROUGH TUESDAY EVENING.
* PRECIPITATION TYPE… SNOW
* ACCUMULATIONS… POTENTIAL FOR FIVE INCHES OR MORE.
* TIMING… TUESDAY THROUGH TUESDAY EVENING. THE HEAVIEST SNOW WILL BE LATE TUESDAY MORNING THROUGH TUESDAY AFTERNOON.
* TEMPERATURES… DROPPING INTO THE TEENS.
* WINDS… BECOMING NORTH 10 TO 15 MPH WITH GUSTS AROUND 25 MPH TUESDAY AFTERNOON AND EVENING.
* IMPACTS… ROADS WILL BE SNOW COVERED AND SLIPPERY. THE COMBINATION OF SNOW AND BLOWING SNOW WILL REDUCE VISIBILITY TO BELOW ONE-HALF MILE AT TIMES. TRAVELLING MAY BE DANGEROUS TUESDAY. THE MORNING AND EVENING COMMUTE MAY BE IMPACTED BY THE SNOW.
A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR THE LATEST FORECASTS.