skyfall

• ſkyfall (obsolete typography)

Compound of sky (“sky”) +‎ fall (“fall”). First attested in 1734.

• IPA^(key): /²ɧỳːfal/

skyfall n

1. hard rain, cloudburst
   • 1748 August 25, “Oͤfre Rheinſtroͤmmen, d. 14. Aug. [Upper Rhineſtreams, Aug. 14.]”, in Post- och Inrikes Tidningar, page 1:

     Kl. 10. om aftonen infant detta owaͤdret ſig åter, och braſt tillika ut i et ſkyfall, ſom foͤrorſakade en ſådan wattuflod, at den uti dalen liggande och en half mil ifrån Rheinfelden belägne Oͤſter Rikiſke byn Magden ſtod 5. minuter under watnet, hwilket ſtigit 12. fot, och bortskoͤlgde 15. hus med menniſkor och boſkap, ſamt alt annat hwad uti dem war.

     At ten o’Clock at Night the Storm return’d, and at the ſame Time broke out into a violent Shower, which occaſion’d ſuch a Flood, that the Auſtrian Village of Magden, lying in the Dale and half a Mile from Rheinfelden, ſtood five Minutes under Water, which had riſen to twelve Foot, and ſwept away fifteen Houſes, with People and Cattle, together with all elſe that was therein.

   • 2025 July 16, Albin Almqvist, Rebecka Rosengart, “Skyfall och vädervarningar – här slår det till [Cloudbursts and weather warnings – here’s where it will hit]”, in Aftonbladet:

     Även i Skåne varnas det för skyfall och översvämningar under onsdagen. Under morgonen finns det dessutom risk för åskoväder.

     Even in Skåne, warnings have been issued for cloudbursts and flooding on Wednesday. There is also a risk of thunderstorms in the morning.

• SMHI, the Swedish Meteorological and Hydrological Institute, define skyfall as either at least 50 mm (c. 2 in.) rain per hour, or, at least 1 mm (c. 0.04 in.) rain per minute.^[1]

• störtskur
• störtregn
• spöregn
• hällregn
• ösregn

• skyfallsliknande (“hard rain-like”)

• skyfall in Svenska Akademiens ordlista (SAOL)
• skyfall in Svenska Akademiens ordbok (SAOB)