Geophysical
FORECAST SOL: Moderate yellow MAG: Normal green ION: Normal green
HomeGeophysicalSummary and ForecastsWeekly Report Thursday, Mar 12 2026 18:49 UT
Summary and Forecasts

Weekly Report

(last updated 12 Mar 2026 00:47 UT)

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT ISSUED ON 12 MARCH 2026 FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx 1. SUMMARY (03 MARCH - 11 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 03 Mar 1222 2323 8 04 Mar 2222 1112 5 05 Mar 2110 1000 2 06 Mar 1321 2202 6 In the BOM magnetometer data for 06 Mar, a weak (8nT) impulse was observed at 0535UT. 07 Mar 2332 2333 12 08 Mar 3332 3322 12 09 Mar 2111 2222 5 10 Mar 2222 2321 7 11 Mar 2322 2011 6 *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. Quiet to unsettled conditions. 2. FORECAST (12 MARCH - 11 APRIL) Disturbed Periods: 14-15 Mar, 20-22 Mar, 3-4 Apr. Best Quiet Periods: 12 Mar, 17-18 Mar, 27 Mar to 1 Apr, 6-8 Apr. 3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS Northern Australian Regions: Disturbed periods: None Mildly disturbed periods: None Best quiet periods: 12-20 Mar, 22-Mar to 11-Apr Central Australian Regions: Disturbed periods: None Mildly disturbed periods: 21-Mar Best quiet periods: 12-18 Mar, 27-Mar to 11-Apr Southern Australian Regions: Disturbed periods: 20-22 Mar Best quiet periods: 12-Mar, 17-18 Mar, 27-Mar to 1-Apr, 6-8 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.

go to top of page