URSIGRAM SYDNEY 03/0000UT DECEMBER 2023 GEOALERT SYD337 UGEOA 85303 31203 0000/ 4021/ 11031 20031 30031 99999 PLAIN MAGNETIC FORECAST: QUIET BT Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au