Solunars by Aldebaran Sidereal Academy

South Dakota's deadliest natural disaster ever was the 1972 Rapid City Flood aka the 1972 Black Hills Flood.
https://en.wikipedia.org/wiki/1972_Black_Hills_flood

June 9-10, 1972, Rapid City, SD (use 0:00 June 10 as the working time).

Intense rains began on the afternoon of June 9 and lasted until after midnight. Altogether, 15" of rain fell in 6 hours, surging Rapid Creek and related waterways. Rapid City was hit hardest when Canyon Lake Dam became clogged with debris during the night and failed. 238 people died, 3,057 injuries, and several bodies were never found. Over 1,335 homes were destroyed. Property damage exceeded $160M.

Year: Capsolar (Dormant.) Moon-Mars sq. (1°08')
Year: Cansolar (Dormant.) Moon-Jupiter op. (1°39')

Bridge
t. Saturn op. Capsolar EP (0°07')

Quarter: Arisolar
Neptune on Asc (2°17')
Saturn on Dsc (2°56')
-- Saturn-Neptune op. (0°39' in mundo)
Mars on Dsc (5°46')
Venus on Dsc (6°12')
-- Venus-Mars conj. (0°26' in mundo)

Month: Caplunar
Neptune on Asc (2°05')
Mercury on Dsc (5°14')
Saturn on Dsc (7°38')
Sun on Dsc (9°12')
-- Sun-Saturn conj. (0°37')
-- Mercury-Neptune op. (2°15')
-- Mercury-Saturn conj. (3°24' in mundo)

Week: Arilunar (Dormant.)

Day: Capsolar Quotidian & Transits
p. Asc conj. s. Saturn (2°08'), sq. p. Venus (0°50')
----------------------------
t. Saturn op. s. EP (0°07')

Day: Cansolar Quotidian
p. MC op. s. Uranus (0°54')


SUMMARY
Year (Capsolar): (Dormant.) Moon-Mars.
Year (Cansolar): (Dormant.) Moon-Jupiter.
Bridge: Saturn (Cap).
Quarter: Neptune (Venus Mars Saturn). Venus-Mars Saturn-Neptune.
Month: Neptune (Sun Mercury Saturn). Sun-Saturn Mercury-Saturn Mercury-Neptune.
Week: (Dormant.)
Day (Capsolar): Venus Saturn (CapQ). Saturn (transit).
Day (CanQ): Uranus.