Weekly Report
(last updated 19 Mar 2026 01:34 UT)
SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 19 MARCH 2026 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (10 MARCH - 18 MARCH) K indices are in UT (0-24). For conversion to local time: AEST = UT + 10 hours; ACST = UT + 9.5 hours; AWST = UT + 8 hours Australian Region* Date K-INDICES A 10 Mar 2222 2321 7 11 Mar 2322 2011 6 12 Mar 2221 3312 8 13 Mar 2234 2323 12 14 Mar 4345 5322 24 15 Mar 3223 3223 11 16 Mar 2222 2211 6 17 Mar 2110 0001 2 18 Mar 1111 0001 1 *estimated from real time 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. G1-Minor geomagnetic storm conditions were observed on 14-Mar due to a coronal hole wind stream. G0 conditions were observed on other days. 2. FORECAST (19 MARCH - 18 APRIL) Disturbed Periods: 19-22 Mar, 3-4 Apr, 9-11 Apr. Best Quiet Periods: 29 Mar, 31 Mar to 2 Apr, 5 Apr, 7 Apr, 13-15 Apr. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: 20-21 Mar, 10-Apr. Best Quiet Periods: 24-Mar to 8 Apr, 13-14 Apr. Central Australian Regions: Disturbed Periods: 20-22 Mar, 10-Apr. Mildly Disturbed: 23-25 Mar, 4-Apr. Best Quiet Periods: 26-Mar to 3-Apr, 5-9 Apr, 13-15 Apr. Southern Australian Regions: Disturbed Periods: 19-25 Mar, 4-Apr, 10-11 Apr. Best Quiet Periods: 26 Mar to 3 Apr, 5-8 Apr, 13-14 Apr. 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. PLEASE NOTE: Geomagnetic activity can frequently be determined by short timescale solar events that cannot be forecast a week in advance, particularly at solar maximum.
