A rare day for Catalinians: five thundering cells drifted off Ms. Mt. Lemmon and its environs and over Catalina and Oro Valley yesterday providing lots of local excitement. The Sutherland Heights district got 0.46 inches, and early on, was leading Mt. Lemmon and the Samaniego Peak gauges because the cells did not drop their loads until over the foothills and the Valley. Below, the exciting day reprised:
Well, C-M person has told enough stories about past weather for today, so shutting down here at 4:42 AM. Dewpoints are still very high, mods expecting more thundering herds in the Catalina/Oro Valley area today.
Have camera ready for some great shaft shots, those black, straight sided ones that go all the way to the ground. If you can, try to get the shot just before the bottom drops out; the two make a great, dramatic couplet for friends and family to enjoy I find.
A disturbing, possibly week long dry spell has been showing up in the models, beginning the 17th, lasting through the 25th or so. Has to do with a giant summertime upper level trough set to bring those record low temps to the upper Midwest beginning in the next few days. The NW flow on the backside of this trough is foretold to extend into Arizona, thus, drying things out and pushing the tropical air southward. May see some hot days and only small Cu and maybe very isolated, distant Cumulonimbus clouds during that time. Ugh.
On the bright side, spaghetti says, and with a lot of confidence, that the dry spell will be eroded and the normal wetness will return after the 25th or so. I think you can see that here, now that you’re an expert spaghetti consumer: