From aswfc at bom.gov.au Sun Jun 1 09:22:18 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Sun, 01 Jun 2025 09:22:18 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 01 June - issued 2322UT/31-May-2025 [SEC=OFFICIAL] Message-ID: <683b8f2a.bfmv3cMGok3Rvg5R%aswfc@bom.gov.au> Solar activity on UT day 01-Jun is expected to be at R1-R2 levels. S1 solar radiation storm conditions are expected. The solar wind speed is expected to be very strong. G3-G4 geomagnetic conditions are expected due to an anticipated CME impact at 2100UT +/- 12 hours. HF radio propagation conditions are expected to be mostly fair to poor. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% depressed. Shortwave fadeouts are probable. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au From aswfc at bom.gov.au Sun Jun 1 17:52:10 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Sun, 01 Jun 2025 17:52:10 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 01 June - issued 0752UT/01-Jun-2025 [SEC=OFFICIAL] Message-ID: <683c06aa.AAfIBnxT0oq4qrxT%aswfc@bom.gov.au> Solar activity on UT day 01-Jun is expected to be at R1-R2 levels. S2 solar radiation storm conditions are expected. The solar wind speed is expected to be very strong. An anticipated CME impact has been observed earlier than expected and produced G3 geomagnetic conditions at the planetary level and G1 geomagnetic conditions in the Australian region. Further periods of G3 conditions are expected, with a chance of G4. HF radio propagation conditions are expected to be mostly fair to poor. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% depressed. Shortwave fadeouts are probable. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au From aswfc at bom.gov.au Sun Jun 1 17:54:03 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Sun, 01 Jun 2025 17:54:03 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 01 June - issued 0754UT/01-Jun-2025 [SEC=OFFICIAL] Message-ID: <683c071b.uzGBumzkeY7ovgxJ%aswfc@bom.gov.au> 01/0752 Solar activity on UT day 01-Jun is expected to be at R1-R2 levels. S2 solar radiation storm conditions are expected. The solar wind speed is expected to be very strong. An anticipated CME impact has been observed earlier than expected and produced G3 geomagnetic conditions at the planetary level and G1 geomagnetic conditions in the Australian region. Further periods of planetary G3 conditions are expected, with a chance of G4. HF radio propagation conditions are expected to be mostly fair to poor. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% depressed. Shortwave fadeouts are probable. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au From aswfc at bom.gov.au Sun Jun 1 19:16:04 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Sun, 01 Jun 2025 19:16:04 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 01 June - issued 0916UT/01-Jun-2025 [SEC=OFFICIAL] Message-ID: <683c1a54.YmwrpSNsd8DeP7UY%aswfc@bom.gov.au> An anticipated CME impact has been observed earlier than expected and produced G4 geomagnetic conditions at the planetary level and G1 geomagnetic conditions in the Australian region. Further periods of planetary G4 conditions are expected. Solar activity on UT day 01-Jun is expected to be at R1-R2 levels. S2-S3 solar radiation storm conditions are expected. The solar wind speed is expected to be very strong. HF radio propagation conditions are expected to be mostly fair to poor. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% depressed. Shortwave fadeouts are probable. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au From aswfc at bom.gov.au Mon Jun 2 09:23:17 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Mon, 02 Jun 2025 09:23:17 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 02 June - issued 2323UT/01-Jun-2025 [SEC=OFFICIAL] Message-ID: <683ce0e5.MWuxi6ijVE4Hp3AL%aswfc@bom.gov.au> Solar activity on UT day 02-Jun is expected to be at R1-R2 levels. S0-S1 solar radiation storm conditions are expected. The solar wind speed is expected to be very strong. HF radio propagation conditions are expected to be mostly fair with poorer conditions at high latitudes. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% depressed during local night hours. Shortwave fadeouts are probable. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au From aswfc at bom.gov.au Mon Jun 2 20:54:52 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Mon, 02 Jun 2025 20:54:52 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 02 June - issued 1054UT/02-Jun-2025 [SEC=OFFICIAL] Message-ID: <683d82fc.7NYsiMjrmB1IBBSl%aswfc@bom.gov.au> Solar activity on UT day 02-Jun is expected to be at R1-R2 levels. S0-S1 solar radiation storm conditions are expected. The solar wind speed is expected to be strong to very strong. G3 geomagnetic conditions may be intermittently observed. HF radio propagation conditions are expected to be mostly fair with poorer conditions at high latitudes. Maximum usable frequencies (MUFs) in the Australian region are expected to be near predicted monthly values to 15% depressed during local night hours. Shortwave fadeouts are probable. Auroras may be visible in Tasmania during local night hours. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au From aswfc at bom.gov.au Tue Jun 3 09:22:50 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Tue, 03 Jun 2025 09:22:50 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 03 June - issued 2322UT/02-Jun-2025 [SEC=OFFICIAL] Message-ID: <683e324a.m7O1iRYzSwValbkw%aswfc@bom.gov.au> Solar activity on UT day 03-Jun is expected to be at R1-R2 levels. S0-S1 solar radiation storm conditions are expected. The solar wind speed is expected to be very strong to strong. G1-G2 geomagnetic conditions are expected. HF radio propagation conditions are expected to be fair. Maximum usable frequencies (MUFs) in the Australian region are expected to be mostly near predicted monthly values. Shortwave fadeouts are possible. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au From aswfc at bom.gov.au Tue Jun 3 14:20:19 2025 From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre) Date: Tue, 03 Jun 2025 14:20:19 +1000 Subject: [ips-sf] ASWFC Summary Forecast for 03 June - issued 0420UT/03-Jun-2025 [SEC=OFFICIAL] Message-ID: <683e7803.MH76be82F/Zro4i5%aswfc@bom.gov.au> Solar activity on UT day 03-Jun is expected to be at R1-R2 levels. S0-S1 solar radiation storm conditions are expected. The solar wind speed is expected to be very strong to strong. G1-G3 geomagnetic conditions are expected. HF radio propagation conditions are expected to be fair. Maximum usable frequencies (MUFs) in the Australian region are expected to be mostly near predicted monthly values. Shortwave fadeouts are possible. Australian Space Weather Forecasting Centre Bureau of Meteorology ASWFC at bom.gov.au www.bom.gov.au | www.sws.bom.gov.au