URSIGRAM SYDNEY 09/0000UT AUGUST 2023 GEOALERT SYD221 UGEOA 85303 30809 0000/ 4021/ 12091 20091 30091 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