URSIGRAM SYDNEY 22/0000UT DECEMBER 2025 GEOALERT SYD356 UGEOA 85303 51222 0000/ 4021/ 11221 22222 30221 99999 PLAIN MAGNETIC FORECAST: MINOR STORM 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