The 2330 UTC water vapor image (above) indicates a large cloud mass from our north off to our southwest. The debris from this cloudiness (associated with a weakening 500 mb short wave that will be brushing by northern and eastern Arizona) will affect the state tonight and tomorrow with cirrus and perhaps some middle cloudiness. The clouds should keep lows a bit higher tonight than they were this morning. Here at the house this morning we had a low of 30F with light frost, while down at the airport the low was only 42F.
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