A storm near Naco, Mexico, spewed anvil and mammatus northeastward over the Borderlands at sunset last evening (2 July), and Art Douglas sent some very beautiful photos, two of which are shown here. The radar image second below (03 UTC on the 3rd) shows the storm and also the anvil echo heading toward Sierra Vista.
It did not dry out nearly as much as some of the model runs indicated yesterday and an early morning MCS has developed over southeastern Arizona. The activity apparently resulted from interacting outflows, as well a 500 mb, weak short-wave moving southward around the east side of the anticyclone. The IR image above is from 1130 UTC and the composite radar below is from 12 UTC. There is a distinct MCV spinning south of Wilcox that may be a player later today, as the current storms move off toward the west-northwest. Rains have been moderate to heavy and have reached to the Redington Pass area just east of town - during last 6-hours 4 sites there have more than a quarter inch of rain, with Italian Traps reporting 0.71". Perhaps a few light showers from this system's debris clouds during next hour or two, especially for eastern portions of the metro area.
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