That was about three times more than CMP (me) expected, and it was such a fabulous a rain! That soaking amount should start the spring greening that we love here. With more rains in the pipeline, eventually, after another longish dry spell, maybe the spring bloom won’t be as bad as it once looked.
As we who love the Sonoran Desert know, its a pretty special place when it comes to rain. But only recently did I learn that the SD is the ONLY desert in the world (!!!) with TWO rain seasons, so great for a cloud-loving meteorologist1, though three or four rain seasons would be that much better. Now, after some interesting information, clouds: yesterday’s, of course: a study in gray2, more or less.
And then the great sunset of underlit Stratocumulus clouds…
Notice that in the afternoon shots, no virga or ice was seen in any cloud! What up with that? Well, of course, if you’ve been coming to this site, you will know its because the cloud tops have descended to something above -10° (14°F) or so where ice begins to form naturally in these parts on most days. (There are exceptions, such as when drizzle or rain drops form in clouds; then ice can form almost spontaneously and readily at temperatures higher than -10°C, and that may have happened as yesterday’s storm ended.)
But, in a further educational (?) diversion, here’s the TUS sounding launched from the U of AZ around 3:30 PM yesterday (goes up at about 1000 feet a minute, btw).
The weather ahead and beyond
Still looks like a regime change is in the works after our dry spell, one that ends around the 20th. At that time it still appears that winter will take on a more normal aspect; a few dry days followed by rain/snow threats, that is, not weeks of dry spells!
2One of the interesting things about me is that my favorite color has always been gray; even in grammar school when I crayola-ed gray skies instead of a blue one with the sun stuck on it somewhere like the other kids did.