URSIGRAM SYDNEY 18/0000UT JUNE 2023 GEOALERT SYD169 UGEOA 85303 30618 0000/ 4021/ 11181 20181 30181 99999 PLAIN MAGNETIC FORECAST: QUIET BT Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au