Monday, August 20, 2012

Another Fabulous Day on the Way!

A multi centered sprawling high pressure area is sitting over the north central and northeastern United States.  It is Canadian in origin, and has brought pleasant comfortable conditions to a large area of the USA from Montana eastward through the Great Lakes to New England, on the north side, and from northern Texas eastward across the northern part of the gulf coast states to the northern North Carolina Coast on the south side.  A disturbance dropping southward across Wisconsin and Lake Michigan into Illinois late today spawned some severe thunderstorms along the western shoreline of Lake Michigan from Lake county through parts of the Chicago land area into northwestern Indiana.  Later showers and some thunderstorms developed along the westward moving lake breeze.  The showers developed southeast of Belvidere, and moved slowly southeast along I-90 intensifying into thunderstorms by the time they reached around Hampshire and Elgin.  Gradually the activity has subsided later this evening.  Skies will be clear overnight, and the low will be in the low 50's with light winds.  On Tuesday high pressure will still be nearly overhead, but will be slipping to the southeast.  It will be sunny with a high around 80 degrees.  The wind will be light and variable, and the humidity will be low.  Enjoy the day!  It looks like the best day of the week.  On Wednesday it will be sunny and warmer as the high pressure ridge shifts toward the southeast. A light southerly wind will develop, and temperatures will rise into the middle 80's.  Thursday looks like it will be the warmest day of the week with an afternoon high in the middle 80's under mostly sunny skies.  Humidity levels will increase on Friday with the southerly wind flow continuing.  Scattered showers and thunderstorms will develop, and continue in the picture on Friday right through the weekend.  The best chance of any significant rainfall, however,  will be on Monday when quite humid air will be in place, and a new cool front will be approaching from the northwest.

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