The phrase "enormous rain" is correct and usable in written English.
It can be used to describe a significant or heavy amount of rainfall.
Example: "The forecast predicted enormous rain, leading to concerns about flooding in the area."
Alternatives: "heavy rain" or "torrential rain."
He also bore witness to yet more crashes as the enormous rain cloud that has sat sulkily above northern France ever since the Tour arrived from Britain again made the roads slippery.
El Nino has been linked to strong winter storms that batter Southern California, to a weak hurricane season in the Atlantic as high-altitude winds shear the towering tops from developing tropical storms, to searing droughts in southern Asia like the one that spawned enormous rain forest fires in Indonesia in 1997.
Unbeknownst to him, an enormous rain puddle started gathering on top of the balloon, which was displacing the hot air that was keeping everyone afloat.
The curry-themed dinner is on a manicured lawn, under the canopy of an enormous rain tree, scampering with squirrels and secreting several owls.
Enormous, world-ending rain.
The summer monsoon brings enormous amounts of rain (up to about 25 inches [635 mm] in a month).
The enormous amounts of rain were not localized as in a thunderstorm so damage grew just miles south of us.
It hovered over the mountainous countryside from Saturday evening until late Sunday, bringing with it enormous quantities of rain and destruction far worse than the disaster-prone country had seen in more than a decade.
"The problems that these cause include acid rain; enormous balance-of-payment problems in the case of oil; the risk of war to ensure oil supplies; carcinogens in the air as oil and coal are burned; heavy metals such as mercury, lead and uranium emitted to the atmosphere as coal burns; black lung disease as coal is mined; vast areas of the country ruined as coal is strip-mined, etc".
Tournament director Peter Adams told BBC Scotland on Saturday morning: "We've had an enormous amount of rain overnight.
In Rapid City, South Dakota, in 1972, an unusual alignment of winds at various levels of the atmosphere combined to produce a continuously training set of cells that dropped an enormous quantity of rain upon the same area, resulting in devastating flash flooding.
