Wednesday, March 22, 2023

Chance For Showers



Heavy cloud cover on the Catalinas at about 7:15 am MST this morning.

The 500 mb low (above) off of California is opening up and coming ashore this morning, with the trailing, southern portion of this feature forecast to move across Arizona later today.

Forecast plumes from the 06 UTC runs of the GEFS are shown here - above is for QPF, with the plumes all indicating light rainfall at the airport today, and then quiet through most of rest of the month. The plumes for temperature (below) indicate a cool couple of days, with mostly falling temperatures today. Plumes for wind (second below) indicate several windy periods through the coming week.



Forecast above (from the 12 UTC WRF-HRRR) is for precipitation through midnight tonight - precipitation over eastern Pima County is mostly quite light, except on the Catalinas. Current forecast from the NWS Forecast Office for today (below) indicates 80% PoPs and breezy - text indicates gusts up to 37 mph, which to me is definitely windy.

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