Thursday, November 20, 2008

Downright Cold!!

Earlier this week we saw some temperatures in the lower teens over a large portion of the state. We did manage to bounce back with some warm temperatures early on Wednesday, but have since dropped back down into the chilly conditions. Tonight we are setting ourselves up for an even colder night than we saw earlier this week. Colder and drier air is moving in, allowing the clouds that were present early today to evaporate away. With clearing skies, and the combination of winds decreasing to below 5 mph we set ourselves up for a strong radiative cooling night. Radiative cooling is essentially the conditions for the ground to lose the heat that it has stored up from the daytime sun. Beings much of the northern plains will be under these conditions, expect some very cold temperatures when we get up tomorrow!

Lows temperatures tonight across Iowa will likely range from the single digits to only the lower teens. Northwest Iowa is likely to be the coldest, with values nearing the 5 degree mark! High temperatures for Friday will not rebound significantly, with upper 20s to mid 30s from northeast to southwest. A quick moving system will move a band of snow showers into the state for Friday evening/night. The best chance of accumulating snow exists from Sioux Falls, SD through Fort Dodge and nearing the Iowa City area. Low temperatures will likely be in the upper teens to lower 20s across the state. A few lingering snow flurries are possible in eastern Iowa on Saturday, with high temperatures in the upper 30s to upper 40s from northeast to southwest. Mid 20s to near 30 for lows both Saturday and Sunday night across the state. High temperatures on Sunday in the 40s throughout Iowa...

Thanksgiving vacation is finally upon us! Hopefully will get a little more relaxing time and will be able to give some good updates as well still look towards that first big snowfall and winter storm!

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