A weak surface trough in the region gained upper level support thanks to an upper trough, increasing instability and wind shear across NE NSW and leading to severe storm development in the inland parts of the Northern Rivers. A number of storms developed locally, but the highlight of the day was a cell which tracked N from SW of Grafton for several hours, eventually reaching our target area near Mallanganee before rapidly dying after interacting with other local development. Below are some pictures from the chase.