[Ips-wgr] ASWFC Weekly Geo. Report (06 August 26) issued 0216 UT on 06 Aug 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 06 AUGUST 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (28 JULY - 05 AUGUST)
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 Jul   1122 1221    5  
 29 Jul   1211 0000    2  
 30 Jul   1111 0000    1  
 31 Jul   0110 2100    2  
 01 Aug   1110 0001    1  
 02 Aug   0111 3321    6  In the BOM magnetometer data for 02 
                          Aug, a weak (10nT) impulse was observed 
                          at 1225UT.
 03 Aug   3322 3123   10  
 04 Aug   2222 0001    3  
 05 Aug   1110 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.

G0 conditions were reported in the Australian region throughout the 
entire week. 

2. FORECAST (06 AUGUST - 05 SEPTEMBER)
Disturbed Periods: 
18-22 Aug.

Best Quiet Periods: 
 6 Aug,  10 Aug,  12-16 Aug, 23 Aug,  25-28 Aug.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 06-18 Aug 25 Aug - 05 Sep.

Central Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 06-18 Aug 25 Aug - 05 Sep.

Southern Australian Regions:
 Disturbed Periods: None.
 Best Quiet Periods: 7-18 Aug,  22 Aug to 1 Sep.


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