URSIGRAM SYDNEY 06/0000UT DECEMBER 2023 GEOALERT SYD340 UGEOA 85303 31206 0000/ 4021/ 12061 20061 30061 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