Daily Report
Geomagnetic Summary
(last updated 07 Nov 2025 23:30 UT)
Geomagnetic field for Australian Region 07 Nov: G0 Estimated Indices 07 Nov : A K Australian Region 22 44444224 Cocos Island 15 34433222 Darwin 31 44544226 Townsville 24 44544224 Learmonth 32 45545225 Alice Springs 24 44544124 Gingin 26 44444335 Canberra 20 44443224 Kennaook Cape Grim 22 44444224 Hobart 22 44444224 Estimated Antarctic Regional K Indices 07 Nov : Macquarie Island 29 45454433 Casey 72 57863334 Mawson 68 56673473 Observed Regional daily pc3 Indices 07 Nov : Darwin 16 (Quiet) Townsville 19 (Quiet) Learmonth 23 (Quiet to unsettled) Alice Springs 4 (Quiet) Gingin 97 (Minor storm) Canberra 86 (Minor storm) Hobart 116 (Major storm) Pc3 pulsations are high frequency (10-45 second period) variations of the Earths magnetic field. Daily pc3-indices are the daily sum of 20 minute pc3-indices for that station and have been shown to be well correlated with rejection of high resolution aeromagnetic survey flight-line data. NOTE: Indices may have been generated from data obtained in cooperation with the following organisations: Geoscience Australia, University of Newcastle Space Physics Group, Australian Government Antarctic Division and International Center for Space Weather Science and Education, Japan. Estimated AFr/Ap Indices 07 Nov : A Fredericksburg 32 Planetary 46 Observed AFr/Ap Indices 06 Nov : A K Fredericksburg 31 Planetary 43 5763 2345
Geomagnetic Forecast
(last updated 07 Nov 2025 23:30 UT)
Date Ap Conditions 08 Nov 30 G1-G2 09 Nov 16 G0, chance of G1 10 Nov 10 G0 COMMENT: ASWFC Geomagnetic Warning 86 was issued on 6 November and is current for 6-8 Nov. G0 geomagnetic conditions were observed in the Australian region on UT day 07-Nov, though local periods of G1 geomagnetic conditions were observed at several sites. Bureau magnetometer data observed a weak sudden impulse at 07/0516UT, confirming the arrival of a CME at Earth. The second expected CME arrival has yet to eventuate. G1 geomagnetic conditions were observed at the planetary level. Mostly G2-G3 geomagnetic conditions were observed in the Antarctic region, with an isolated period of G4 observed at Casey. G1-G2 geomagnetic conditions are expected on 08-Nov due to ongoing CME and coronal hole effects. G0 geomagnetic conditions are expected over 09-10 Nov, with a chance of G1 on 09-Nov.
