[Ips-wgr] ASWFC Weekly Geo. Report (14 May 26) issued 0223 UT on 14 May 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 14 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (05 MAY - 13 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               
 05 May   3221 0000    4  
 06 May   0110 0000    0  
 07 May   0100 0332    5  In the BOM magnetometer data for 07 
                          May, a weak (11nT) impulse was observed 
                          at 1622UT.
 08 May   2122 2222    6  
 09 May   2111 0111    3  
 10 May   1110 0011    1  
 11 May   1111 1111    3  
 12 May   0110 0011    1  
 13 May   1111 2222    5  

*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 this
week. 

2. FORECAST (14 MAY - 13 JUNE)
Disturbed Periods: 
 15-18 May, 4 Jun, 9 Jun, 11-13 Jun.

Best Quiet Periods: 
 19-21 May,  24-26 May,  29 May,  2-3 Jun,  5-8 Jun, 10 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions: N/A

Central Australian Regions:
 Mildly Disturbed Periods: 18 May, 4 Jun
 Best Quiet Periods: 14-16 May, 20 May to 02 Jun, 06-12 Jun. 

Southern Australian Regions:
 Disturbed Periods: 18 May, 4 Jun
 Best Quiet Periods: 14-16 May, 20 May to 02 Jun, 06-12 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.

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