Daily Report
Geomagnetic Summary
(last updated 16 Nov 2025 23:31 UT)
Geomagnetic field for Australian Region 16 Nov: G0 Estimated Indices 16 Nov : A K Australian Region 13 23233333 Cocos Island 11 23233322 Darwin 13 33233233 Townsville 14 33233333 Learmonth 15 33333333 Alice Springs 11 23233223 Gingin 15 33333333 Canberra 14 24233333 Kennaook Cape Grim 15 24333333 Hobart 18 25333333 Estimated Antarctic Regional K Indices 16 Nov : Macquarie Island 19 34254322 Casey 64 67763343 Mawson 36 45445553 Observed Regional daily pc3 Indices 16 Nov : Darwin 4 (Quiet) Townsville 0 (Quiet) Learmonth 6 (Quiet) Alice Springs 2 (Quiet) Gingin 61 (Active) Canberra 55 (Unsettled) Hobart 65 (Active) 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 16 Nov : A Fredericksburg 16 Planetary 22 Observed AFr/Ap Indices 15 Nov : A K Fredericksburg 7 Planetary 9 2122 2233
Geomagnetic Forecast
(last updated 16 Nov 2025 23:31 UT)
Date Ap Conditions 17 Nov 13 G0 18 Nov 9 G0 19 Nov 11 G0 COMMENT: ASWFC Geomagnetic Warning 94 was issued on 16 November and is current for 16-17 Nov. G0 geomagnetic conditions were observed across the Australian regions over the entire UT day 16-Nov, with two weak (9nT, 14nT) impulses observed at 0213UT and 0511UT not sufficient to increase geomagnetic activity beyond the G0 level. Periods of G1-G3 geomagnetic conditions were observed in parts of the Antarctic region over the same period. G0 geomagnetic conditions are expected on 17-19 Nov, with only a mild solar wind speed increase seen due to coronal hole high speed wind stream effects.
