URSIGRAM SYDNEY 23/0000UT MAY 2023 GEOALERT SYD143 UGEOA 85303 30523 0000/ 4021/ 13231 21233 30231 99999 PLAIN MAGNETIC FORECAST: ACTIVE 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