The skies opened in the bottom of the fifth.

Seconds after Francisco Alvarez’s RBI double, there was no drizzle but a zero-to-100 downpour that led to an 87-minute deluge delay.

It was appropriate on a night the Mets brought the thunder, and the Yankees were soaked.

The Subway Series reinforced what had been true a few days ago: The Mets are rolling, and the Yankees have been derailed.

Carlos Mendoza’s group kept on chugging in a 12-2 destruction of Aaron Boone’s club on Wednesday, completing a two-game sweep in front of a sellout crowd of 43,004 at Citi Field that left both teams heading in opposite directions.