Weekly Report
(last updated 07 May 2026 03:05 UT)
SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 07 MAY 2026 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (28 APRIL - 06 MAY) 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 28 Apr 0010 0010 0 29 Apr 0000 2101 1 30 Apr 1111 2223 6 01 May 3332 0222 9 02 May 1111 1122 4 03 May 2220 2201 4 04 May 1222 2433 11 05 May 3221 0000 4 06 May 0110 0000 0 *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. G0 geomagnetic conditions were observed in the Australian region throughout the previous week. Planetary G2 was reached on 04-May, and planetary G1 was reached on 05-May. Planetary G0 on other days. 2. FORECAST (07 MAY - 06 JUNE) Disturbed Periods: 08-09 May, 15-18 May, 27-28 May, 03-05 Jun. Best Quiet Periods: 10-14 May, 19-26 May, 29-May to 02-Jun, 06 Jun. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed Periods: None. Best Quiet Periods: 07-May to 06-Jun. Central Australian Regions: Disturbed Periods: None. Mildly Disturbed Periods: 08-09 May, 15-18 May, 27-29 May, 03-05 Jun Best Quiet Periods: 10-14 May, 19-26 May to 29-May to 02-Jun, 06-Jun Southern Australian Regions: Disturbed Periods: 08-09 May, 15-18 May, 27-29 May, 03-05 Jun Best Quiet Periods: 10-14 May, 19-26 May to 29-May to 02-Jun, 06-Jun 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.
