Midwest Pattern Discussion for Oct 1-6, 2009
An upper level low will be approaching the region. This upper level low is going to be responsible for two things. First, will be rainfall. This rainfall will start to move into Iowa and Missouri by thursday. This rainfall will work and spread its way to the north and to the east. At this point and time it looks like anywhere from just under an inch in ohio to potentially as much as 2.5 inches of rain over Iowa could fall. It looks like we will keep rainfall in the forecast thru about sunday ..however..western areas should start to dry out before that.
By monday this upper level low will be up into Southeast Canada but another S/W and its associated trough will be making its way towards the region by early to middle part of the week. In the tuesday-wednesday time frame and this too will create more rain across the region.
The second thing that this ULL is going to be responsible for is the temperatures. Temperatures generally looks to be chilly with highs in the 40s and 50s thru this time frame.
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