Tuesday, December 17, 2019

Cold And Very Dry Morning

Cold and very clear morning here in Tucson. in contrast to snowstorm bottom at Niagara Falls.

Temperatures at about 7:30 am MST this morning - above for southeast Arizona and below for metro area.  Some temperatures in teens along the San Pedro, with 20s to 40s F across metro. Low here this morning was 24 F.

Models continue to forecast a wet Christmas here, as strong trough at 500 mb swings through the Southwest (above, valid at noon on Christmas Eve). Below is forecast of precipitation for 48-hours ending at midnight on Christmas Day (both from 00 UTC GFS runs). 

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