Cold air and wintry are taking aim for part of the Rockies and Plains this week. Snow will also accompany the blast in some locations.
A push of cold air will drive southward along the eastern slopes of the Canada Rockies early this week.
Snow is most likely to fall over parts of the Canada Rockies and in some area farther east in Alberta Monday night and Tuesday.
From there, the cold push and at least spotty snow showers are likely to continue southward into Montana Tuesday night and Wednesday and the northern Plains of the United States Wednesday into Thursday.
The early-season outbreak will easily bring the chilliest weather of the season so far to these areas and will be accompanied by wind.
It is possible that some areas have daytime AccuWeather.com RealFeel® temperatures in the 20s and 30s for a couple of days.
The chill from this particular outbreak will take some time to get to the Great Lakes region and may have to wait for another push to do so.
This projected pattern fits with the connection that approximately 7 to 14 days after tropical systems curve before hitting the coast of Asia in the Pacific, that colder air pushes into part of the northern U.S.
Tropical Storm Ewiniar did this last week this east of Japan and Jelawat is following suit this week.
This story was originally published on Friday, Sept. 28, 2012 and has been updated.
Tropical Depression Two has lost its battle to become the next Atlantic tropical storm, but it will still increase shower activity across the Caribbean to end the week.
After temperatures briefly climb to typical midsummer levels, another cooldown will roll into the Midwest and expand to the East for the last part of July.
A potent storm system moving out of the Northwest United States will bring an elevated risk of tornadoes to parts of Alberta and Saskatchewan on Thursday.
Severe thunderstorms that blasted areas of Arkansas with damaging winds and heavy rainfall will continue to race through eastern Texas.
Fresh cooler and less humid air will settle over the Washington, D.C., area for Thursday and Friday.
As California continues to be plagued by intense drought conditions, some surfers are reaping what may be one of very few benefits to such a dry season.
Columbus, OH (1979)
This is the first year in 101 years of record keeping at Columbus in which the temperature has not reached 90 degrees by July 23rd.
Hurricane Delores, west of Baja California, causes high surf along the Southern California coast.
Minneapolis, MN (1987)
10 inches of rain fell in 6.5 hours.