URSIGRAM SYDNEY 18/0000UT JANUARY 2025 GEOALERT SYD018 UGEOA 85303 50118 0000/ 4021/ 13181 21181 30181 99999 PLAIN MAGNETIC FORECAST: ACTIVE due to CORONAL HOLE BT Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au