A series of rainstorms rolling up the Atlantic Seaboard for the balance of the week could contribute to delays for very busy airports in the South and Northeast.
Rain, but not snow will be a frequent visitor in Atlanta, Boston, Baltimore, Charlotte, New York, Philadelphia and Washington, D.C.
The high humidity that accompanies general rainfall often produces areas of fog and low cloud ceilings.
A front approaching from the west is loaded with moisture and will deliver drenching showers and thunderstorms to much of the Atlantic Seaboard today.
A second rain event will affect many of the same areas Thursday into Friday as a storm forms along the front and rolls northeastward toward the mid-Atlantic.
A third rain event is possible in the South later Saturday, depending on the track and speed of yet another storm along the front. It is this storm that may or may not bring a white Christmas to part of the Northeast.
While generally not as disruptive as severe thunderstorms and heavy snowfall, rain and fog can lead to a slowdown in arriving and departing flights. In short, under adverse weather conditions, more separation is needed between individual aircraft that are landing and taking off.
Flights that have a destination to an airport experiencing adverse weather may be held for a time at their point of departure. Such a schedule is called a Ground Delay Program or a Ground Stop and can have ripple effects over a large part of the nation.
In severe cases, aircraft and crews may not get to their destination before they are scheduled to leave on a new flight. This is one reason how flight cancellations can occur until a new schedule can be created with alternative aircraft and crews.
After natural disasters, it’s not uncommon to see pop-up charities appear, particularly around the holiday season.
A train of storms will continue to deliver rain to the Pacific Northwest with one particular storm this weekend likely to be the strongest of the bunch.
A major storm centered on Christmas Eve will affect the Midwest and East with areas of strong winds, heavy snow, torrential rain and thunderstorms.
With many winter storms lined up, snow will create a wintry setting for Christmas in some areas.
Although the Christmas holiday season is typically known for its wintry weather, carolers and tasty treats, not all Christmas traditions around the world are one in the same.
Kansas City was shaken out of its usual routine early Thursday morning as commuters woke to nearly 5 inches of snow in some areas, marking the first substantial storm of the season.
Philadelphia, PA (1991)
High of 30 degrees; only 5th day in 1991 with a high below freezing.
Milwaukee, WI (2000)
49.5" of snow in December - snowiest December on record.
Valley Forge, PA (1777)
Continental Army encamped at Valley Forge on a day having "stormy winds and piecing cold" in-and-out winter followed.