URSIGRAM SYDNEY 19/0000UT AUGUST 2025 GEOALERT SYD231 UGEOA 85303 50819 0000/ 4021/ 11191 22191 30191 99999 PLAIN MAGNETIC FORECAST: MINOR STORM due to CORONAL HOLE BT Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au