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Lovely Day 13/06/2013

Posted by zoidion in Weather.

Twin Cities ephemera: What a rare and glorious day today has been: A clear sunrise, pleasantly warm (about eighty degrees) by midday, light breezes, dry air (thanks to the gentle northwest air flow), blue sky dotted with small clouds. This has been the loveliest day of the month thus far.

Eight days of the month thus far have seen rain falling on this area. In tune with expectations (see previous post), it has been a wet week—0.75 inch of rain on the 9th, 1.25 inches on the 12th—with more rain likely tomorrow. (The 1981-2000 mean precipitation for June is 4.25 inches.)

But I think it’s safe to say all of us around here are reveling in today. For we know what is likely to follow.

The astronomical comparison of this date to the chart for the season is revelatory.  Mars, force for warming and drying, is closing in on the “starting” position of Jupiter at the lower meridian. (The exact Mars-to-Jupiter alignment is tomorrow. See comparison chart below.)


This atmospheric situation confirms the gist of what George J. McCormack described in his Text-Book of Long-Range Weather Forecasting:

The conjunction of Mars and Jupiter, particularly when both planets have north declination or occupy the meridian of an ingress chart, is one of the strongest combinations for extremes of high temperatures for the season, followed by intense electrical phenomena.

Observe the rising temperatures in the southern and south-central regions of the US where heat is more the norm, and where Gemini remains as the lower-meridian indicator for the season, but Pisces rather than Aquarius (the coldest of the signs) is on the Ascendant.

I expect the Mars-Jupiter phenomenon to correlate with some particularly strong winds—the zodiacal sign involved, Gemini, is of the air element.

The heat and electrical  effects combined with greater water content come into play in the second half of July, when Mars joins Jupiter in the water sign Cancer. But even now they are approaching a feverish peak, as Sun, Mercury, Venus, Mars and Jupiter are all in close parallel of declination (comparable to conjunction by degree); in addition, they are all “occupying the tropic”—they are all at extreme north declination. (In a sense, all are sitting on the Tropic of Cancer—see graphic below.) This adds potency to the earth and atmosphere in the Northern Hemisphere–reflected in the early start to the hurricane and typhoon seasons in both Atlantic and Pacific.


Boiled down to the essence, this is building up to a particularly stormy June, especially in the mid- to lower-Mississippi Valley regions. Surely, one key to getting through is seizing the favorable intervals.

– zoidion –



1. Dave of Maryland - 14/06/2013

Hello Pete,

Another nice article. Do you have teaching experience? In Monday’s newsletter I want to develop an astro app idea and throw something in the direction of the Twin Cities.


Pete - 14/06/2013

Thanks, Dave. It seemed to take a witness-able sunrise to wake me to the idea of a post about a beautiful day rather than a storm–though I’ve been investigating the timing and circumstances of derechos. Sounds like maybe you had another one yesterday.
As for teaching experience–no, not really.

Dave of Maryland - 14/06/2013

Rats about teaching. Read Monday’s newsletter for one neat idea.

2. Dave of Maryland - 14/06/2013

When I was a kid we delivered the morning newspaper. I was the worst with getting up at 4:30 am, but for the seven months of the year I could manage it, I saw the most glorious sunrises ever. Easily the finest moment of the entire day, full moon rising orange in the east not excepted (that’s no. 2). Get up well before dawn and watch if you can. Will give you an entirely new appreciation.

zoidion - 15/06/2013

“Morning newspaper”? What’s that? But yes, quiet (but for the birds) and luminous dawn is best. Seeing the full moon setting is a special thrill for me. Also, a couple weeks ago I saw Mercury, Venus and Jupiter low in the west just after sundown.

Dave of Maryland - 15/06/2013

The setting full moon is a strange bird. I always thought it to be dead and lifeless, very much like a cringing vampire caught out by accident at dawn. A far cry from the starkly powerful and menacing rising moon only a few hours before.

The waning moon, rising up in the early morning sky, is a rare sight and thrilling in a special way.

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