The coldest air of the season so far is forecast by AccuWeather.com to roll into the Northwest this weekend, and it will be accompanied by snow in some areas.
The storm track will shift farther south in the Pacific this weekend. As it does, colder air will drain southward from British Columbia into Washington, Oregon and the northern part of Great Basin and Rockies.
While a great deal of moisture will not be available and it will not snow at the coast from Vancouver, British Columbia, to Seattle and Portland, it will snow at pass level and will bring the lowest snow levels of the season thus far.
Snow levels are forecast to dip to around 2,500 feet in the northern Washington Cascades and to around 4,500 feet in the Oregon Cascades.
Mount Shuksan with Picture Lake in the foreground, in Washington, during late October. (Image by KingWu, Photos.com)
A few inches of snow is likely over Stevens and Snoqualmie passes, which can stick to the roads from time to time Friday night into Monday.
The cold and snow may be enough to jump-start the ski season in the Cascades and also in the Canada Rockies.
Steady snow is possible much of the weekend in the Canada Rockies. Accumulating snow will stretch eastward reaching Edmonton, Alberta. The pattern may lend a clue for the upcoming winter in western Canada.
Along the coast, rounds of chilly rain showers are in store from British Columbia to Washington and Oregon.
During Monday and Tuesday of next week, cold rain will dip into northern California and snow is possible over the southern Cascades and the northern part of the Sierra Nevada.
A tropical disturbance, moving just north of the large islands of the Caribbean, will take aim at Cuba, the Bahamas and southern Florida into this weekend.
Regions dealing with Zika-carrying mosquitoes could have another threat to monitor as tropical activity picks up this season.
Following a tropical storm threat in the Bahamas and Florida into this weekend, an uptick in tropical systems will continue for the next six to eight weeks.
On the heels of deadly Typhoon Mindulle, Japan is bracing for another threat from Typhoon Lionrock next week.
A deadly earthquake struck central Italy at 3:36 a.m. local time on Wednesday with tremors felt as far away as the capital city of Rome.
Stargazers will want to dig out their binoculars and telescopes this weekend as Venus and Jupiter shine so close that they appear as one large, bright star in the evening sky.
Elizabeth, PA (1979)
A heavy thunderstorm at Elizabeth, PA, 20 miles SE of Pittsburgh, tore the roof off an apartment building and downed about 100 trees. Trees were also knocked over at McKeesport, PA.
Dearborn Co., IN (1864)
A railroad train on a Cincinnati to Chicago run lost a right of way meeting with a tornado. Accident occurred in Dearborn Co., SE IN, 15 miles from Laurenceburg at 5:45 PM. Train lifted off track - over 30 persons injured.
East Indies (1883)
Krakatoa volcano exploded - spectacular red sunsets over U.S. in November and December of that year.