Yopaat was an important Maya storm god in the southern Maya area that included the cities of Copán and Quiriguá during the Classic period of Mesoamerican chronology (c. 250–900 AD). Yopaat was closely related to Chaac, the Maya rain god. Yopaat is depicted as bearing a flint weapon that represents a thunderbolt. Yopaat was held responsible for especially violent lightning storms, that were believed to cause earthquakes. He was often represented with a snake in place of one leg, demonstrating a close relationship with K'awiil, another Maya deity with similar attributes.
The deity was most important during the Late Classic period (c. 600–900 AD). Although his worship was concentrated in the Motagua Valley, glyphic inscriptions of the name occur as far away as Palenque, Yaxchilán and Toniná. Decipherment of a hieroglyphic text found at Palenque has resulted in the suggestion that Yopaat was associated with mist that forms before rainfall. The name of the deity was frequently used as a part of the names of the kings of the Quiriguá dynasty, and it is likely that Yopaat was the patron god of the city, which was subject to abundant rainfall and frequent floods.
The name Yopaat is formed from two elements – yop and aat, literally leaf-penis. This name has been tentatively linked to mythic imagery at San Bartolo, Petén, and with other deities in wider Mesoamerica that feature an oversized leaf hanging from their abdomens.
In Maya art, Yopaat is depicted using his thunderbolt weapon in the presence of a mythic turtle, presumably to crack its shell, an action that seems to give rise to the resurrection of the maize god. Representations of Yopaat are almost identical to representations of Chaac, except his weapon, and curved dotted elements on his head. These dotted elements may represent clouds or mist, or may be sparks. He also has stony markings on his body.
- Gutiérrez González 2012, p. 1061.
- Bassie-Sweet and Hopkins 2015, p. 127.
- Pallán Gayol 2008, p. 26.
- Gutiérrez González 2012, p. 1062.
- Gutiérrez González 2012, p. 1063.
- Gutiérrez González 2012, p. 1066.
- Stuart 6 March 2013.
- Pallán Gayol 2008, p. 27.
- Looper 2003, pp. 4–5.
- Bassie-Sweet, Karen; and Nicholas A. Hopkins (2015) "Ancient Thunderbolt and Meteor Deities" in K. Bassie-Sweet, ed. The Ch'ol Maya of Chiapas (Norman, Oklahoma, US: University of Oklahoma Press). 123–144. ISBN 9780806149264. OCLC 907238631
- Gutiérrez González, María Eugenia (2012) B. Arroyo, L. Paiz, and H. Mejía, eds. "Yopaat, un dios Maya de la Tormenta en Quiriguá." [Yopaat, a Maya storm god at Quiriguá] Simposio de Investigaciones Arqueológicas en Guatemala (in Spanish) (Guatemala City, Guatemala: Ministerio de Cultura y Deportes, Instituto de Antropología e Historia, and Asociación Tikal). XXV (2011):1061–1073. ISBN 9789929400375. OCLC 806091034
- Looper, Matthew (2003) Lightning Warrior: Maya Art and Kingship at Quirigua (Austin, Texas, US: University of Texas Press). ISBN 0292705565.
- Pallán Gayol, Carlos (2008) "The Many Faces of Chaahk: Exploring the Role of a Complex and Fluid Entity within Myth, Religion and Politics" Academia.edu.
- Stuart, David (6 March 2013) Leaf Glyphs: Spellings with yo and YOP. Maya Decipherment: Ideas on Ancient Maya Writing and Iconography (decipherment.wordpress.com). Austin, Texas, US: University of Texas. Retrieved on 18 March 2016.
- Bernal Romero, Guillermo (2008) "Las orejeras de K'inich Janahb' Pakal: comentarios sobre una inscripción olvidada de Palenque" [The earspools of K'inich Janahb' Pakal: comments upon a forgotten inscription from Palenque] Estudios de cultura maya (in Spanish) (Mexico City, Mexico: Universidad Nacional Autónoma de México, Instituto de Investigaciones Filológicas). 31. ISSN 0185-2574