[Ips-whfpr] ASWFC Weekly Prop. Report (03 June 26) issued 0141 UT on 03 Jun 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC WEEKLY HF PROPAGATION REPORT
ISSUED ON 03 JUNE 2026 
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 MAY - 02 JUNE)
Date   T index   Conditions        
27 May   87      Normal            
MUFS:
   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   88      Normal            
MUFS:
   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.

29 May   97      Normal            
MUFS:
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

30 May   95      Normal-fair       
MUFS:
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

31 May   90      Normal-fair       
MUFS:
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

01 Jun   87      Normal            
MUFS:
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Enhanced by 20% 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.

02 Jun   82      Normal-fair       
MUFS:
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Mostly 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.

Predicted Monthly T index for June:  68

2. FORECAST (03 JUNE - 09 JUNE) 
MUFS: Maximum Useable Frequencies (MUFs) are expected to be near 
predicted monthly values to 15% enhanced this week. 

Propagation conditions: Mostly normal propagation conditions expected.
Shortwave fadeouts are probable.

T index: 80
ASWFC SWF HF Communications Warning 51 was issued on 2 June and 
is current for 2-4 Jun.

3. OUTLOOK (10 JUNE - 10 JULY)
Degraded HF propagation conditions possible:
11-12 Jun,  8-9 Jul.

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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