Sunday, July 26, 2009

Sunday - All around nicer day

Hello and happy Sunday everyone. A much nicer day is on tap as an upper-level disturbance begins to pinwheel eastward over the central and eastern Great Lakes. Winds will lighten and skies will be less gray, allowing temperatures to climb into the low 80's for most locations from central Minnesota and places south. The image below was taken from a satellite nearly 22,500 miles above the Earth's surface early Sunday. It shows the cloudier skies over Lakes Superior and Michigan and only a few 'fair weather' cumulus clouds. Cool air aloft is keeping the atmosphere unstable enough for daytime clouds to build in the afternoon sunshine. A few of those clouds may puff up just enough to give way to a couple of sprinkles across the Arrowhead of Minnesota and northern Wisconsin, rainfall amounts will be very light, if any at all.
The jet stream or the strong upper level winds, continue to blow from the northwest around the base of a pesky low pressure system sitting over the Hudson Bay. Unfortunately, this doesn't seem to want to move anytime soon. Cool temperatures and spotty showers will be found around this feature during the upcoming week, meaning our weather will stay unsettled and slightly cooler than average.
The image below shows the latest computer models guess at how much moisture will fall across the U.S. from Sunday morning through Friday morning (5 days). The heaviest of the rain stays well south of us, rounding the base of the jet stream.

This may truly be the "Year without a summer" - temperatures so far this July are running 3.3 degrees below average at the Twin Cities airport. Hopefully the weather pattern will break soon, stay tuned.

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