Friday, March 27, 2020

Sprinkles Possible


Clouds this morning but with some bits of sunshine - above at 7:09 am MST.


Strong 500 mb short wave approaching Arizona this morning (12 UTC analysis above), but it remains moisture-starved. There are a few very light sprinkles/showers around this morning, but main impact will be gusty west winds this afternoon. See view from Kitt Peak this morning (bottom) that shows showers approaching from the west.


The 10-m wind plumes above are from the 06 UTC GEFS run. Winds below (from 06 UTC WRF-GFS run on 5.4 km grid) are valid at 2:00 pm this afternoon. Forecast indicates that the strongest winds will impact northern Mexico and New Mexico. Current NWS forecast for metro area indicates gusts as high as 28 mph for airport this afternoon.



Shown here are the WRF-GFS forecasts (on 1.8 km grid) for solar radiation today - both forecasts valid at 2:00 pm this afternoon. Outgoing long wave above shows low/middle clouds over eastern Pima Count, while incoming short wave is quite low. The clouds will diminish by evening, if WRF forecasts verify.



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