[Ips-dhfpr] ASWFC Daily HF Prop Report - 03 January 26 issued 2330 UT on 03 Jan 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 JANUARY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 JANUARY) 
Date   T index  Conditions    
03 Jan   119    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Enhanced by 30% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 25% during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      110
Jan      89
Feb      88


2. FORECAST (04 JANUARY - 06 JANUARY)
Date   T index  Conditions       MUFs                              
04 Jan    75    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values
05 Jan    95    Normal-fair      Near predicted monthly values    
06 Jan   105    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) were near predicted 
monthly values during UT day 03-Jan in the Australian region, 
with enhancements of 20-30% observed in the Northern Australian 
and Niue Island regions. MUFs were also near predicted monthly 
values in the Antarctic region. Low-frequency sporadic-E was 
observed in the southern Australian region, with spread F observed 
in Hobart. MUFs are forecast to be up to 10-15% depressed on 
04-Jan due to an anticipated CME arrival. These conditions are 
expected to improve over 05-06 Jan as this CME passes Earth. 
Shortwave fadeouts are possible, and sporadic-E may be observed 
during local night hours.

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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