Cygnet Bay has broken its June monthly record in the space of one day, recording 173mm. Heavy falls have been swamping northwest WA over the last few days in a period typically known as the 'dry season'. Broome broke its daily June rainfall record yesterday with 139mm in 24 hours. This morning Cygnet Bay capped off its wettest 24 hour period with a total of 173mm. This not only stands as the wettest 24 hour period in June, but it now makes this June the wettest in the sites 50 year history. In June, the Kimberley township averages 19mm and has never recorded more than 140mm in the month, let alone in a day. The cause of the record rain was a weak low pressure system off the northwest WA coast combining with warmer than usual sea surface temperatures over the Indian Ocean. This created a thick, slow-moving and moisture-packed northwest cloudband that has been dropping heavy rain from the Pilbara through to the Kimberley over the last few days. This trough and low is weakening quickly allowing rain to ease today and then clear by tomorrow morning. Cloud will gradually break up allowing the northwest of the nation to experience a sunny day on Sunday, more typical of the dry season.