URSIGRAM SYDNEY 21/0000UT OCTOBER 2023 GEOALERT SYD294 UGEOA 85303 31021 0000/ 4021/ 11211 21211 30211 99999 PLAIN MAGNETIC FORECAST: ACTIVE due to CORONAL MASS EJECTION BT Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au