URSIGRAM SYDNEY 12/0000UT DECEMBER 2025 GEOALERT SYD346 UGEOA 85303 51212 0000/ 4021/ 12121 21121 30121 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