Monday, January 23, 2012

Split flow keeps active weather in the south

A split flow pattern within the jet stream this week will keep active weather in the south and several disturbances moving across the north.  Once we've finished with this low that brought storms as close to us as Ogle county, high pressure will move in Tuesday helping clear our skies. 

A cut-off low will begin to develop late Tuesday in the southwest and move into Texas Wednesday before lifting east Thursday.  This cut-off low could bring a few active storms across southern Texas Tuesday and and then again Wednesday.  Closer to home, the northern branch of the jet stream will keep a few systems coming in from the Pacific northwest.  While there are no major storms in the forecast for us, a cold front coming through Wednesday night/early Thursday and then again Friday into Saturday will keep the light snow/rain mix in the forecast.

By this weekend the two branches will have merged together forming a trough over the Midwest.  This will keep the weekend breezy and cooler with highs in the middle 20s.

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