Tuesday, April 17, 2012

More Rain on the Way

A ridge of high pressure moved across the area today, and is located over Michigan early tonight.  Skies are still mostly clear, but clouds will increase overnight as a double barreled low pressure system pushes eastward across the Dakotas tonight.  The lows will merge into a single low over northeastern South Dakota by midnight tonight.  Scattered showers and some thunderstorms are moving across the northern plains early this evening.  Some of the showers may reach the Stateline by daybreak on Wednesday with a warm front moving across the area.  The low will move to northern Wisconsin by noon on Wednesday.  A brisk southwesterly wind will be in place ranging from 10 to 20 mph with gusts to 30 mph.  The winds will pump the afternoon temperature up close to 70 degrees, and there could be some thunderstorms into the evening hours.  A cool front will push through the area switching the winds around to the the northwest, then north, and then northeasterly by daybreak on Thursday.  The cool front will stall out just to our south, say along the Interstate 80 corridor, by 6 am on Thursday.  A low pressure center will form in Nebraska, and move to Iowa by Thursday night.  Moist air over-running the front cause rain showers to develop on Thursday that will evolve into a soaking rain with embedded thunderstorms possible into Thursday night.  Rain showers will on Friday as the low moves slowly off to the east.  It will be cloudy, breezy, and cool with a high only around 50 degrees on Friday.  High pressure will ridge from a center over James Bay in Canada southwest across Wisconsin, Iowa, Kansas through the Texas panhandle early Saturday morning.  It will be clear and cold to start the day on Saturday with a low in the middle 30's.  That will be low enough for patchy frost late Friday night through the early daybreak hours on Saturday morning.  It will be sunny and cool with a high in the middle 50's.  The ridge will move very little on Sunday and Monday.  It will be mostly sunny both days with moderating afternoon temperatures into the mid 60's Monday and the upper 60's Tuesday.

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