Yesterday afternoon and evening thunderstorms stayed mostly on the higher elevations, although widespread storm debris produced light showers over most of the lower elevation areas. The result was the coolest and most humid morning of the past seven days, as shown by the time series for TUS above. A plot of lightning strikes for the 24-hours ending at 5 am MST this morning (Tuesday August 6th) below, indicates activity mostly on the higher elevations with isolated, random strikes over eastern Pima County. Rain occurred at 87 of the 92 ALERT sites during the 24-hours ending at 5 am MST - apparently (unless I've missed a day) the most widespread rainfall event so far this summer.
I've snipped two segments of the ALERT network - the Rincons and east metro above, with the west metro and Tucson Mountains sector below. These graphics illustrate heavier rains over the Rincons, and heavier amounts also fell over higher elevations of the southern sector of the network. Here at the house there was lightning visible, mostly to the east and southeast after dark, but we only received 0.09" in light showers. Rains here at sunrise yesterday amounted to an additional 0.03".
Finally, Tropical Storm Henriette has become a hurricane and is heading off to the west, as did Flossie and Gil - this morning's NHC forecast is below. Henriette may brush the Big Island, as did Flossie.
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