it was caused by a stationary front and a moist northerly behind a blocking high 
there are places in NZ that can get as much as 500mm in 24hours
the wettest places get 8000mm a year!
it was caused by a stationary front and a moist northerly behind a blocking high
there are places in NZ that can get as much as 500mm in 24hours
the wettest places get 8000mm a year!