Signs continue to point toward an arctic cold outbreak beginning the third week of November in the Northwest, expanding to much of the eastern half of the U.S. before Thanksgiving.
The cold wave will have people turning up their heat and perhaps scrambling to stock up on wood and fill up on heating oil.
Snow and a freeze-up accompanying the cold blast may lead to travel problems.
The air will have tremendous shock value, given the complacency in the weather now over the Plains and much of the Southeast.
It appears building cold air over Siberia will soon move eastward through the Arctic over the next week or so, then drive southward through North America during week three of the month.
Alaska would feel the cold around mid-month.
Next, steering currents would then drive frigid air southward through western Canada into the Northwest and northern Rockies.
It is possible this invasion of cold air would first spin up a major storm over the middle of the nation, where it comes in contact with unusual warmth building in the East.
Whether or not a wrapped-up storm with wind-driven rain, severe thunderstorms, and a Midwest blizzard comes to pass before the cold reaches the East remains to be seen. However, that too is a possibility.
It is looking more and more likely that the coldest air of the season so far, with strong winds, may greet people during the weekend prior to Thanksgiving from the Plains to the Atlantic Seaboard.
AccuWeather.com and its team of long range forecasters (Joe Bastardi, Paul Pastelok and Joe Lundberg) first alerted you about this possibility last week.
The details on how cold the weather will get from place to place will unfold over the next week.
Most likely, once the cold reaches the East, temperatures will rebound in the Northwest.
AccuWeather.com is expecting a stormy, wintry December over the northern tier of the U.S. It appears this outbreak will set the stage for that pattern.
The late October windstorm and now the crazy storm that struck New England from the northeast Monday are examples of the volatility potential of the weather pattern.
Watches and warnings issued to the public are based on different criteria. Knowing the difference between the two can prepare individuals for the necessary safety steps.
The chilliest air since last spring will blast into the northern Plains and Midwest late this week and will make the East and South feel like autumn for a couple of days.
After a wet September, drier weather will finally arrive in Florida for the new month.
A powerful cold front will send severe thunderstorms towering in the air from Chicago to Dallas on Thursday.
Residents of Japan are facing another tropical threat from strengthening Typhoon Phanfone.
Unusually high water temperatures throughout the North Pacific Ocean have brought sightings of uncommon species to the area as well as concerns from researchers about how it could affect native species.
Tucson, AZ (1983)
Flood waters that left 10 people dead or missing surged through normally bone-dry land today, forcing thousands from their homes, washing out bridges, roads and power and turning a slice of the Desert Southwest into "a raging river". Rivers swollen to record levels burst their banks amid heavy rains swallowing buildings and bridges and causing millions of dollars in damage across a 200-mile swath of Arizona.
Nimes, France (1988)
A total of 7.87 inches of rain in 3 hours caused floods and mudslides. Eight persons were killed. Damage totalled $634 million.
Los Angeles, CA (1995)
High reached 101 degrees.