Monday, October 19, 2026

Scattered Showers Yesterday

View of the Catalinas at 7:15 am MST this morning.


ALERT Network rainfall reports through 8:00 am this morning. Note that almost all reports are less than a quarter of an inch. Here at house we had thunder and 0.06" around 9:00 pm last evening; TUS reported thunder and 0.11"; DM had thunder and 0.15"; while Atmo reported 0.08".


Plumes from the 06 UTC GEFS runs for QPF at airport (above) indicate a fairly significant event next Thursday night. The POPs reach almost 90 percent for that period (below).



The 12 UTC GFS forecast for 500 mb heights at 12 UTC on Saturday is shown above, indicating a strong shortwave moving across Arizona.


NWS graphic for rain chances today shown above - note the inset was too small to be readable at this scale. Current NWS forecast for the airport shown below, with POPs reaching 70 percent on Thursday.

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