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The Sights (and science) of a Chilly Spring Day

It was a shame that we could not hang onto the beautiful, warm weather that we had last weekend.  However, spring is a time of transition, when warm and cold patterns can quickly switch back and forth.  One benefit of spring is that is often produces spectacular looking skies, especially when unsettled weather moves in. Today (Thursday) is a classic example of what can happen when a chilly, unsettled spring air mass moves in.  I say unsettled because the chilly air is part of a large area of low pressure in the upper levels of the atmosphere.  Low pressure often…