lightning
آذرخش، برق (در رعد و برق)
Lightning is a flash of light in the sky caused by an electrical storm.
meteorologist
هواشناس
A meteorologist is a scientist who studies the weather.
precipitation
بارش
Precipitation is rain, snow, hail, or sleet.
radar
رادار
Radar is a device that uses reflected radio waves to located objects at a distance. Radar is short for "radio detection and ranging."
rain
باران
Rain is water that falls from clouds. Rain is measured using a rain gauge.
rainbow
رنگین کمان
A rainbow appears when sunlight passes through bits of water in the air. The white light is broken up into many colors.
sky
آسمان
The sky is blue.

sleet
بوران، تگرگ ریز
Sleet is freezing rain.
snow
برف
Snow is flakes of frozen water that fall from clouds when it is very cold.
snowflake
برف ریزه، برف دانه
Snowflakes are made of snow – they are crystals. No two snowflakes look alike, but they all have six sides.
storm
توفان
A storm is very bad weather, like a hurricane or a typhoon.