URSIGRAM SYDNEY 20/0000UT DECEMBER 2022 GEOALERT SYD354 UGEOA 85303 21220 0000/ 4021/ 11201 21201 30201 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