Winds have been gusting 25 to 35 mph at TUS since about 3 am this morning. The time series of T and Td (above) shows the flat T curve after 11 pm last night. The low at airport was 58F and was 15F warmer than yesterday's low of 43F - quite a surprising warm up. Here at the house the morning low was 34F - up by 5F compared to yesterday. But, it was a very serious 24F colder than the official low. At 9 am it remains calm here at the house, but expect winds will break through any time now. Given the relatively small terrain gradient from the airport to north side of the city, the 24F temperature gradient is quite amazing.
The low at the RAWS station on Mt. Hopkins was only 54F, while the low at the Empire RAWS station was 44F. Photo above shows the Empire RAWS site (I took the photo on the 31st) with the view looking west-northwest, directly toward the north end of the Santa Ritas, i.e., directly toward the site of the proposed Rosemont Copper Mine. This mine would be mostly on Coronado National Forest lands; would be one of the largest copper mines in the world; and would destroy the scenic beauty, and much of the ecology, of one of the most beautiful landscapes of southeastern Arizona. Ironically, the mine would be owned and operated by a Canadian company, in partnership with several entities in Korea!
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