Thunderstorm

Thunderstorms are an uncommon event that occurs when wind speed reaches 20 mph and rain level is at 50%, and continues until either wind speed drops to 15 mph or rain level drops to 40%. The screen becomes darker, however night enemies won't spawn unlike in the graveyard. Rain enemies will spawn, but not windy day enemies. Occasionally, lightning will strike creating a flash of light on the screen. This is accompanied by thunder, during or after the flash. During a Thunderstorm, its exclusive music will play.

Trivia

 * On older Mobile Versions, lightning effects would be present when it rained.