日ひ雷がみなり

noun

thunder on a clear day; thunder from a blue sky

Refers to thunder occurring when the sky is otherwise clear, often considered an unusual or ominous phenomenon. Typically written as 日雷.

• 今日きょうは晴はれているのに日ひ雷がみなりが鳴なった。

  Today, even though it's sunny, there was thunder from a clear sky.

noun

lightning that starts a fire; fire-causing lightning

Lightning strike that ignites a fire. Often written as 火雷 or 火神鳴り. Related to 水雷 (みずがみなり, lightning accompanied by heavy rain).

See also: 水雷 (みずがみなり)

• 火ひ雷がみなりが落おちて山やま火か事じになった。

  Fire-causing lightning struck and started a forest fire.