Time Lapse storm grey clouds forming in the sky incoming heavy rain

time lapse storm grey clouds forming sky incoming heavy rain weather atmosphere cloudy thunderstorm rainfall dark clouds overcast precipitation climate meteorology nature wind tempest gloomy rainstorm skywatching forecast horizon stormy downpour lightning thunder drizzle rain clouds weather change cloud formation cloudscape stormfront heavy clouds shower wet weather dark sky rainy incoming storm weather patterns nature scene skywatch sky photography storm watching