It's a storm of the most intense severity.
HURRICANE
It's a storm accompanied by a heavy fall of snow.
SNOWSTORM
It's a state, process, or instance of light, heat, and flame due to burning a forest.
FOREST FIRE
It's a great flowing or overflowing of water.
FLOOD
It's an unusually large sea wave produced by a seaquake or volcanic eruption under water.
TSUNAMI
It's extreme hunger; starvation.
FAMINE
It's a violent destructive windstorm occurring over local areas of land.
TORNADO
It's a long period of dry weather.
DROUGHT
It's a condition of the weather with strong winds, rain, thunder and lightning.
STORM
Vibrations in the earth's crust that cause the ground to shake.
EARTHQUAKE
It's the outburst or outbreak of a volcano
VOLCANIC ERUPTION
It's the hot, melted, fluid rock that comes out of a volcano.
LAVA
it's a large mass of snow, ice, etc., that comes loose from a mountain slope and slides or falls suddenly downward.
AVALANCHE
It's a harassing or troublesome invasion of insects that devast everything on their way.
LOCUST INFESTATION
It's a period of abnormally hot and usually humid weather.
HEAT WAVE