First - a shot of stacked lenticular clouds (above) that developed over the Catalinas around 5 pm MST yesterday afternoon.
Atmo's early run of the WRF-GFS is slower today on bringing the current weather system through eastern Pima County. The above forecast is of total precipitation through 6 pm this MST this evening. It is similar to yesterday's, although amounts across the north metro area are up a bit - still generally a light precipitation event, except in the mountains.
The composite radar forecast (above) indicates the primary shower band moving through the metro area around 3 pm (behind the front), and the forecast surface plot valid at 1 pm MST (below) indicates a more amorphous frontal passage during the lunch hour. Will now observe the details of what transpires today.
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