Question

what do you mean by frontal rainfall​

Answer 1

ғʀᴏɴᴛᴀʟ ᴘʀᴇᴄɪᴘɪᴛᴀᴛɪᴏɴ ɪs ᴛʜᴇ ʀᴇsᴜʟᴛ ᴏғ ғʀᴏɴᴛᴀʟ sʏsᴛᴇᴍs sᴜʀʀᴏᴜɴᴅɪɴɢ ᴇxᴛʀᴀᴛʀᴏᴘɪᴄᴀʟ ᴄʏᴄʟᴏɴᴇs ᴏʀ ʟᴏᴡs, ᴡʜɪᴄʜ ғᴏʀᴍ ᴡʜᴇɴ ᴡᴀʀᴍ ᴀɴᴅ ᴛʀᴏᴘɪᴄᴀʟ ᴀɪʀ ᴍᴇᴇᴛs ᴄᴏᴏʟᴇʀ ᴀɪʀ. ғʀᴏɴᴛᴀʟ ᴘʀᴇᴄɪᴘɪᴛᴀᴛɪᴏɴ ᴛʏᴘɪᴄᴀʟʟʏ ғᴀʟʟs ᴏᴜᴛ ᴏғ ɴɪᴍʙᴏsᴛʀᴀᴛᴜs ᴄʟᴏᴜᴅs.

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Answer 2

Frontal or Cyclonic Rain is caused by cyclonic activity and it occurs along the fronts of the cyclone. It is formed when two masses of air of different temperature, humidity and density meets. For example meeting of moisture laden warm tropical wind with a polar air mass. A layer separating them is called the front .