Above - heavy storm approaching Kitt Peak from the northeast at 3:10 pm MST yesterday afternoon. Models were correct in forecasting most storm activity to stay west and south of Tucson and the early WRF-GFS had too much activity forecast over eastern Pima County. Strong, downslope east winds proved to be a real negative factor yesterday. East winds 20 to 30 mph continued until after 4 pm, when an outflow moved across the metro area from the south to southwest. The outflow didn't force much new convection and all but the far west and south parts of the ALERT network remained dry. Only 14 sites had light rainfall during the afternoon through 5 pm and only 3 more picked up rain after 5 pm - 24-hour coverage at 5 am MST this morning was 18%. Nothing here at house. Plot of CGs through 24-hours ending 5 am this morning (below) shows heavy activity from central Pima County westward and no lightning over all of southeast Arizona.
Sunrise this morning showed heavy cloud cover over Catalinas - above. And regional visible image at 7 am below shows widespread cloud cover from the Four Corners extending to the southeast, south, and southwest into Mexico. Will be limited sunshine today and there are showers around this morning - TUS just reported R+ and 0.11".
Eastern Pacific IR image at 6 am at bottom shows deep, tropical cloudiness extending into the Southwest. The tiny TS Juliette is along the west coast of southern Baja.
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