Short violent gust of wind and rain (6)
I believe the answer is:
squall
'short violent gust of wind and rain' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for squall that I've seen before include "Sudden violent gust of wind" , "Sharp rainy gust" , "Sudden storm of wind and rain, or a baby's cry" , "Sudden strong wind" , "Sudden brief storm" .)