Edited at 2:30 pm MST 23 January - current MesoWest surface plot above shows that the backdoor cold front has just come across the border into southeastern Arizona.
Surface plot from 5 am MST this morning (above) indicates a strong cold front that is heading westward across New Mexico and approaching El Paso, Texas. There is more than 20 mb difference in SLP between El Paso and the Oklahoma Panhandle, where temperatures are in the single digits. This front will backdoor into southeastern Arizona during the night, bringing a period of strong easterly winds and more bouncing temperatures. The early WRF-NAM forecast this morning (23 January) brings the front across the Tucson area around midnight tonight and forecast 10-meter winds are strongest around and after sunrise tomorrow. The 10-meter wind forecast below is valid at 8 am tomorrow morning. But I am thankful that I'm not in Illinois or Wisconsin this morning where the winds and below zero cold are brutal.
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