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.
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Boston, MA (1999)
No measurable rain the entire month of June (normal is 3.09").
Tropical Rains caused flooding. The cloud bursts were generated by the combination of Tropical Cyclone 04B, which made landfall in the eastern state of Orissa the morning of the 29th. In Raipur, 16 inches poured down from evening of the 28th to the morning of the 30th. In Bombay, 10 inches of rain fell in just 9 hours on the 30th; total rainfall from the 28th to the 30th was just over 20 inches.
Flooding rainfall continued. Near Olpe, 4.78 fell in 24 hours, causing major flooding. Dexter was completely cut off by flooding, with roadways in and out of town unpassable. Near Williamsburg, 17.25 inches of rain fell over the past 3 days. As of the 30th, Welda's total rainfall for June was about 20 inches.