Monday, January 30, 2012

Temperature vs. Snow Cover

What little snow cover we have will continue to melt away as the mercury rises into the 40s the next several days.

The first image on the left shows the current snow depth across the Midwest.  Most locations in north-central Illinois and south-central Wisconsin have anywhere between 2" to 4" of snow remaining on the ground, with an inch or less further east and south.  With the southerly winds expected the next couple of days the snow pack will continue to dwindle, which will aid in the warming trend through the remainder of the week.

Just a little over 15.5% of the U.S. is covered with snow, but what I find very interesting is that the snow depth across the upper Midwest and far northern Plains really isn't that deep; with the exception of the lake effect regions.  This shows that even though we've had some cold days in the past couple weeks, that air mass was modified a bit as it moved south.  We truly haven't had a big arctic outbreak like we have in years past.  It's all been bottled to the north across Alaska where temperatures have been well below zero for almost the entire month of January in the interior part of the state.

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