[Ips-wgr] ASWFC Weekly Geo. Report (03 September 26) issued 0153 UT on 03 Sep 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 03 SEPTEMBER 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (25 AUGUST - 02 SEPTEMBER)
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               
 25 Aug   1121 0100    2  
 26 Aug   0110 0001    1  
 27 Aug   1100 0001    1  
 28 Aug   0111 2333    7  
 29 Aug   3232 2232   10  
 30 Aug   3323 2321   10  
 31 Aug   2223 1111    6  
 01 Sep   1112 2221    5  
 02 Sep   1111 1012    3  

*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 in the Australian region on all days this week.

2. FORECAST (03 SEPTEMBER - 03 OCTOBER)
Disturbed Periods: 
8-9 Sep, 14-15 Sep

Best Quiet Periods: 
 4-7 Sep, 10-12 Sep, 16-23 Sep, 28-Sep to 3-Oct

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: None.
 Best Quiet Periods: 4-7 Sep, 10-12 Sep, 16-23 Sep, 28-Sep to 3-Oct.

Central Australian Regions:
 Disturbed Periods: None.
 Mildly Disturbed Periods: 14-17 Sep.
 Best Quiet Periods: 4-7 Sep, 10-12 Sep, 18-23 Sep, 28-Sep to 3-Oct.

Southern Australian Regions: 
 Disturbed Periods: 8-9 Sep, 14-17 Sep
 Best Quiet Periods: 4-7 Sep, 10-12 Sep, 18-23 Sep, 28-Sep to 3-Oct.


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.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au