About real clouds, weather, cloud seeding and science autobio life stories by WMO consolation prize-winning meteorologist, Art Rangno
Pretty Altocumulus
Today’s clouds
“Dewpoints up!”, akin to “surf’s up!” as said by surfers to one another. 52 F dewpoint here in Catalina, generally, 40s to low 50s throughout southern AZ now. So, we have a good chance for some decent Cumulus and small Cumulonimbus clouds around in the middle of this afternoon and evening. Bases will still be way up there, 14-15 kft above the ground and near the freezing level, so rain at the ground can’t be much, and coverage will be minimal.
Dries out tomorrow, too, so today’s our only hope for a while for rain in the area.
Interaction between Little Crissy Hurricane and the westerlies continues to disappoint as Little Crissy’s moist plume is carried to the south and east of Arizona. There is some indication that that a residual, barely alive low level circulation, as it completely dissipates off Baja around the 19th, might still result in a surge of moist air as a new upper trough moves into the interior of the SW then. More wishful thinking?
The End
Author: Art Rangno
Retiree from a group specializing in airborne measurements of clouds and aerosols at the University of Washington (Cloud and Aerosol Research Group). The projects in which I participated were in many countries; from the Arctic to Brazil, from the Marshall Islands to South Africa.
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