What a fascinating example!
So, in brief:
- The Capsolar has Pluto 0°07' from WP. (This is angular most years, and there is nothing to make it more distinctive this particular year, but it's damn close!) Pluto is also 3°09' below Descendant. - Moon is closely square the Mercury-Uranus-Neptune square for the whole world.
- The Supermoon itself has Saturn 1°12' from EP, Pluto 1°30' past MC. MC and EP are both on the equator, which emphasizes that there is an actual, very close Saturn-Pluto aspect here - but it's in right ascension! Pluto RA 236°37', Saturn RA 326°46', 90°09' apart, with MC 235°32'.
- The Supermoon was itself a high-impact transit to the Capsolar. At the time of the Full Moon, luminaries squared Capsolar Asc 0°57', Saturn conjoined Capsolar MC 0°29', Pluto transited Capsolar WP 0°41', Saturn-Pluto square in RA 0°09'.
I only know of one similar example: It's as exact, but not as intense. The Kiss Nightclub Fire in Santa Maria, Brazil, 2:00 AM January 27, 2013, occurred the night of a Full Moon. At the time the fire broke out (with Mars the degree of IC FWIW), the Full Moon was separating by 0°10', with Sun at 12°30' Capricorn and Moon at 12°40' Cancer. Santa Maria's Capsolar MC was 12°27' Aries. There were not as many layers in this as in your example, and the Moon-Sun aspect (known to be highly common for big fires) was itself the big-deal transit. (The Full Moon chart itself was not malignant: It put Jupiter on Dsc, at most signifying the big, raucous, over-attended event in town that night.)
Back to the Blizzard of '93 (which dropped 13" of snow in Birmingham)! Would we have caught this without the Full Moon chart? (I'm always interested in whether our current methods would have let us predict correctly.) By the time the storm hit on March 12, we did have transiting Saturn and Pluto exactly on Capsolar angles, and would have forecast a few weeks that we'd have forecast based of something like this interpretation: "Harsh, dramatic tragedies or hardship with a sometimes apocalyptic feel: catastrophic disasters with profound feelings of irrevocable loss or separation." That sounds about right
The Caplunar would have registered as some kind of whacky and extreme: The 0°18' Uranus-Neptune conjunction was exactly square MC for Washington (and exactly mundane conjunct Moon!). Jupiter widely foreground would have either tipped this to a powerful event or alerted us to consider the weather, especially precipitation. But the basic interpretation of that Uranus-Neptune would have been something like: "High-impact events, explosive and rupturing (physically or psychologically), stirring waves of mass reaction, and overflowing the bounds of conventional thinking and expectations. Stimulates psycho-spiritual evolution, or at least very altered states of consciousness."
(And that Capsolar Mercury-Uranus-Neptune came to a CapQ angle the day the storm hit.)
The Arilunar was still the active (flow-through) Week chart, and had Saturn closely setting.
So we'd probably have looked pretty good predicting from the Year, Month, and Week level unless we'd missed weather factors from concentrating on other things. (I try to assess every mundane chart, when predicting, separately for meteorological vs. human-political events, but one gets tired of being so repetitious.)
OK, back to the Supermoon chart:
New Moon and Full Moon charts are a mainstay of Tropical mundane astrology. (There is nothing inherently "Tropical" about them - but they're among the toolset Tropical astrologers primarily use.) Donald Bradley used them for years (actually, decades, since he continued to write on them under pseudonyms while he was at Clancy). In theory, they should be important. But whenever I see a mundane event occurring on or in the immediate aftermath of a New Moon or Full Moon, I check it, and it is usually grossly disapointing. Eclipses are slightly better (being stronger versions), but not necessarily.
You've opened two ideas here to explore further with respect to these syszygy charts: (1) Are Supermoons [syzygies with Moon at perigee] inherently stronger, much in the fashion of eclipses? (2) Are syzygy connections to the Capsolar a clue to which ones will be more important?
As I said above... what a fascinating example!