URSIGRAM SYDNEY 31/0000UT DECEMBER 2024 GEOALERT SYD366 UGEOA 85303 41231 0000/ 4021/ 13311 21312 30311 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