This morning's runs of the WRF-GFS model at Atmo forecast substantial temperature changes tonight through Thursday morning for the Tucson metro area. The rapid changes are due to east winds beginning tonight and becoming quite strong by Thursday morning (17 January). The above surface plot forecast is valid at 7 am on Thursday morning and indicates some temperatures holding in the 50s at sunrise. The WRF is warmer than the NWS forecasts for TUS the next two mornings (by about 7F or so). So, something to watch - I will certainly welcome the return to warmer temperatures. I don't look forward to cleaning up all the cactus limbs that have frozen and fallen off the large prickly pears in the yard.
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