Is it India? Or is it Catalina?

Let’s have a contest, get the brain going.

With dewpoints hovering near, and even eeking into the low 70s in AZ, with giant thunderstorms complexing our weather with sudden stupifying downpours, one wonders, after all of these blogs, this “body of work” if you will,  if the several people who comprise the Cloud-Maven blogpire, one that radiates from one part of Catalina to another,  would be able to know where they were if they could be transported to the locations in these two sets of four photos.   (BTW, all of which were taken by the present Arthur–hahahaha.)

OK, drum roll, insert photos here.

Two were taken at the Madras (now Chennai) International AP in Meenambakkam, Tamil Nadu, India, in September 1975, and the other two just yesterday afternoon in Catalina, where most of us live.  Remember, there are mountains in India, so just because you see some mountains doesn’t mean its NOT India.  Also, just because I mentioned two were taken in India first, doesn’t mean necessarily that they are the first two shots below.

OK, begin thinking and analyzing, maybe drink some more coffee.







OK, if you guessed the first two photos were actually taken in India during the REAL monsoon in 1975, you were right.  That’s a friend, Venkateswaran, on the far right of the first photo admiring the arcus cloud ahead of the downpour.

The result of our “pseudo-monsoon”,  which was a pretty good imitation of the real thing yestserday,  shown in the second set of two photos, was another 1-2 inches in the CDO watershed, 0.75 inches in here SE Catalina, 1.16 inches at Sutherland Heights, and a whopping 1.92 inches yesterday afternoon and Our Garden (Jesse, personal communication), keepers of the Catalina long term climo records.

What was the effect on the CDO River at the bottom of East WIlds Road?

It got huge.  Coulda rafted brown water.  Below are more shots of the CDO wash/river again for the second day in a row, ones after yesterday’s dump.  A young bystander (i.e., fellow gawker) said I had arrived after the peak!  Said the churning waves that developed every 20 min or so due to surges down the wash, were 8-10 feet high!  Here they were about half that, 4 feet or so from trough to ridge.  I wanted to “shop” a water buffalo in one of these photos so BAD!

Of course, this flood is “mild” compared to the Aug 25th, 2003 flow, which covered Lago del Oro road.

BTW, rainfall totals hereabouts are now up to or exceed the average July monthly amount of 3.xx inches.








The Weather Ahead

With high dewpoints once again today, 64 F here in Catalina, more large thunderstorms are pretty much in the bag, and importantly, this assertion is corroborated by calculating models, all that I looked at.  Here is the forecast rain picture for 4 PM today from the Beowulf Cluster at the University of AZ: 4 PM 20120715_WRF Precip (Flash Animation)  As you will see, WIDESPREAD rain is expected, with totals in the “best” cores getting up to 1-2 inches again.  Wow, three days in a row of major storms.

Things are supposed to dry out some tomorrow, but showers will still be around before a break of a couple or three days.

The End.

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.