[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (29 May 26) issued 0124 UT on 29 May 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 29 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (22 MAY - 28 MAY)
Date     22    23    24    25    26    27    28
10cm    124   137   133   139   141   142   145
AFr       5     4     7     8     7    12  ( 10)
Aaus      3     0     2     4     3     4  (  8)
T        59    64    67    76    80    87    88

Solar:        Solar flare activity
Geomagnetic:  Geomagnetic activity observed for Australian region.
Frequencies:  Australian ionospheric F2 critical frequencies

22 May 
Solar:        R1, with an M2.3 at 1029UT
Geomagnetic:  G0
Frequencies:  
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 15% over the UT day.

23 May 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

24 May 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
    Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

25 May 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

26 May 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

27 May 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 40% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

28 May 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

 
2. FORECAST (29 MAY - 04 JUNE)
Solar: 
Solar flare activity is expected to be at the R0 level this week,
with a chance of R1. 

Geomagnetic:  
G0 planetary geomagnetic conditions are expected this week, with a chance
of G1 on 29-May and 04-Jun due to coronal hole high speed wind stream
effects. 

Frequencies:  
Maximum Useable Frequencies (MUFs) in the Australian region are expected
to be near predicted monthly values this week. 

For an explanation of some of the terms in this report, go to
https://www.sws.bom.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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