Promising fizzle


If you looked outside to the south and upwind of Catalina later yesterday afternoon, after a disappointing day of Cumulus development over the Cat Mountains, you saw this behemoth of a top protrude out of a mass of cirriform clouds beyond Pusch Ridge.   Excitement begins.  Can it hold up long enough to reach us?  This complex of thunderstorms that trudged slowly toward us was around Green Valley at this time (4:29 PM).  It faded almost from the moment this photo was taken.  Go here to see the radar imagery of this from IPS Meteorstar.  Alas, all we got from it was sunset color by the time it got here 3 h later.   The colorful underlit bubbles of downward moving air are called “mammatus” if you care.

We continue to be on the edge of the main summer rain areas to the south, and so we will be lucky to get anything again today other than sunrise and sunset color today. “Dang”, as a friend would say.


By 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.