Thursday, August 24, 2017

Widespread Rains But Mostly Very Light Yesterday


Active storm day yesterday over much of Arizona. Building storm above was at 3:00 pm MST - note that anvil from storms to south had already began to spread over the metro area (upper right). Image below is at 6:00 pm with light rain from thick anvils covering the field of view. Detected CG flashes (second below, from Atmo and Vaisala for 24-hours ending at 1:00 am this morning) shows an all too common donut hole over the metro area.




The rainfall maps from the ALERT network (north above and south below for 24-hours ending at 7:00 am this morning) show widespread areal coverage of very light rainfall (mostly less than 0.15"), with heavy storm cores staying well southwest and north of the metro area. The heavy storm cells to south propagated toward the most unstable air, which was to the northwest, leaving the rest of us under thick anvil cloud.

The airport reported 0.09", DM had 0.13", and we had much thunder here but only 0.05".

The miserable synoptic pattern continues, following the passage of yesterday's short wave. Models currently forecasting little storm activity, except over some of the higher terrain, into the weekend.


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