[Ips-wsgr] ASWFC Weekly Solar and Geophysical Report (10 July 26) issued 0115 UT on 10 Jul 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY SOLAR AND GEOPHYSICAL REPORT 
ISSUED ON 10 JULY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (03 JULY - 09 JULY)
Date     03    04    05    06    07    08    09
10cm    187     0   139   125   110   116   110
AFr      11    40    19     6     4    11  ( 10)
Aaus      4    38    12     2     1     8  ( 11)
T        85   108    90    74    59    72    67

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

03 Jul 
Solar:        R2, with an M1.2 at 2312UT, an M1.4 at 1313UT, 
              and an M6.7 at 1811UT
Geomagnetic:  G0
In the BOM magnetometer data for 03 Jul, a weak (8nT) impulse 
was observed at 1200UT.
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Depressed by 15% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 15% over the UT day.

04 Jul 
Solar:        R3, with an M2.0 at 0000UT, an M2.1 at 0113UT, 
              an M3.7 at 0332UT, an M1.4 at 0515UT, an M1.8 at 
              0807UT, an M1.0 at 0852UT, an M3.2 at 1112UT, an 
              M3.2 at 1351UT, an M1.1 at 1606UT, an M1.9 at 1848UT, 
              an M1.5 at 1936UT, an X1.3 at 2041UT, and an M1.0 
              at 2349UT
Geomagnetic:  G1
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Enhanced by 45% during local night.
   Northern Australian Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

05 Jul 
Solar:        R2, with an M1.0 at 2349UT, an M1.4 at 0031UT, 
              an M1.3 at 0433UT, an M2.7 at 0539UT, an M1.0 at 
              0726UT, an M1.4 at 1100UT, an M1.4 at 1632UT, an 
              M5.3 at 1757UT, an M1.4 at 1907UT, and an M1.0 
              at 2123UT
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

06 Jul 
Solar:        R0
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

07 Jul 
Solar:        R1, with an M4.0 at 1419UT
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% 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.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

08 Jul 
Solar:        R1, with an M1.5 at 1756UT
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 20% over the UT day.

09 Jul 
Solar:        R1, with an M1.1 at 0227UT
Geomagnetic:  G0
Frequencies:  
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   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.

 
2. FORECAST (10 JULY - 16 JULY)
Solar: 
R0-R1 most days this week. 

Geomagnetic:  
G0, chance G1 on 10-Jul and 21-Jul. G0 on other days.

Frequencies:  
MUFs depressed by 10-15% over 10-11 Jul. 
Mildly degraded HF propagation conditions during local
night hours on 10-Jul. 
MUFs near predicted monthly values on other days.


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