This NOAA satellite image taken Friday, Sept. 21, 2012 at 1:45 a.m. EDT shows a cold front moving across the Great Lakes and Ohio Valley with showers and a few thunderstorms. An upper level trough is affecting the Upper Mississippi Valley and the Dakotas with areas of showers/light rain. A stationary front is across central Florida with showers and thunderstorms.(AP PHOTO/WEATHER UNDERGROUND)
This NOAA satellite image taken Friday, Sept. 21, 2012 at 1:45 a.m. EDT shows a cold front moving across the Great Lakes and Ohio Valley with showers and a few thunderstorms. An upper level trough is affecting the Upper Mississippi Valley and the Dakotas with areas of showers/light rain. A stationary front is across central Florida with showers and thunderstorms.(AP PHOTO/WEATHER UNDERGROUND)
A low pressure system spinning over eastern Canada creates a cold front that bring showers to the Great Lakes and moves into the Northeast Saturday Sept. 22, 2012. Meanwhile, high pressure builds over the Western states and Plains, maintaining dry and mild conditions. (AP Photo/Weather Underground)
More showers are expected Friday across the Midwest and Great Lakes as a low pressure system continues spinning just north of the Great Lakes. The system is moving northward through eastern Canada, allowing for cold air to continue pouring into the Upper Midwest.
The system will push another cold front into the upper Mississippi River valley, producing widespread scattered showers. Heavier rain showers will persist along the downwind shores as flow from the northwest picks up moisture from the Great Lakes and creates bouts of heavier rain. This system will head south into the Ohio River valley and Midwest through Friday afternoon and evening.
In the South, the tail end of a cold front will weaken over Florida, amid diminishing thunderstorm activity in the state. A few showers may persist, but heavy rains and strong storms are not likely.
Out West, high pressure over the Western states will bring another warm and dry day with dangerous fire weather conditions. Areas of smoke and poor visibility will continue for the Pacific Northwest and \intermountain West as active wildfires create poor air quality for the region.
The Northern Rockies will see highs in the 70s again on Friday, about 10 degrees above seasonable for the region. Temperatures in the lower 48 states ranged Thursday from a morning low of 24 degrees at West Yellowstone, Montana, to a high of 104 degrees at El Centro, Calif.
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Online:
Weather Underground: http://www.wunderground.com
National Weather Service: http://iwin.nws.noaa.gov
Intellicast: http://www.intellicast.com
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