URSIGRAM SYDNEY 16/0000UT SEPTEMBER 2023 GEOALERT SYD259 UGEOA 85303 30916 0000/ 4021/ 12161 21161 30161 99999 PLAIN MAGNETIC FORECAST: ACTIVE due to FLARE BT Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au