Too much, too soon.
5:30 AM ET FRI 12/7/18
- HIGH PRESSURE RIDGE OVER THE NORTHERN STATES THIS WEEKEND WILL COUNTERBALANCE APPROACH OF A SOUTHERN WINTER STORM, KEEPING MAJORITY OF WINTRY PRECIP SOUTH OF THE D.C./I-66 CORRIDOR.
- UP TO 6-12" POSSIBLE FROM SOUTHERN VIRGINIA TO CENTRAL & WESTERN NORTH CAROLINA. Some areas will receive twice their normal seasonal snowfall in one event. System may be an indicator of what a favorable pattern would able to produce in the Mid-Atlantic later in the season.
- FLURRIES OR OCCASIONAL LIGHT SNOW POSSIBLE in the DC metro area, with accumulating snow of 1-2" possible south of DC toward central Virginia. Baltimore metro area and north to PA unlikely to receive accumulation, but may see a passing snow shower at times on Sunday.
LATEST SURFACE MAP PROJECTION DEPICTS DUAL HIGH PRESSURE SYSTEMS KEEPING WINTER STORM LARGELY SOUTH OF MID-ATLANTIC, WITH HIGH IMPACT SNOWFALL CENTERED IN THE CAROLINAS. See our previous report for probabilities. In short, it's too much cold air too soon for the Mid-Atlantic, and too much snow too soon for Carolinas.