URSIGRAM SYDNEY 14/0000UT SEPTEMBER 2023 GEOALERT SYD257 UGEOA 85303 30914 0000/ 4021/ 11141 20141 30141 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