URSIGRAM SYDNEY 18/0000UT DECEMBER 2024 GEOALERT SYD353 UGEOA 85303 41218 0000/ 4021/ 11181 21181 30181 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