וַיְהִ֣י ׀ עַד־כֹּ֣ה וְעַד־כֹּ֗ה וְהַשָּׁמַ֙יִם֙ הִֽתְקַדְּרוּ֙ עָבִ֣ים וְר֔וּחַ וַיְהִ֖י גֶּ֣שֶׁם גָּד֑וֹל וַיִּרְכַּ֥ב אַחְאָ֖ב וַיֵּ֥לֶךְ יִזְרְעֶֽאלָה׃
And it came to pass in a little while, that the heaven grew black with clouds and wind, and there was a great rain. And Ahab rode, and went to Jezreel.
Rashi
How can it be that…cast a gloom. Bring darkness,1Alternatively, ‘has raised up to the clouds.’ (Ibn Ezra) as Scripture states, “the heavens had become darkened with clouds.”2I Melochim 18:45.