[Ips-dhfpr] ASWFC Daily HF Prop Report - 02 January 26 issued 2330 UT on 02 Jan 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/02 JANUARY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (02 JANUARY) 
Date   T index  Conditions    
02 Jan   134    Normal         

Flares: none.

MUFs:
   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.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 45% 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 (03 JANUARY - 05 JANUARY)
Date   T index  Conditions       MUFs                              
03 Jan    60    Fair             Depressed 20 to 30%/near predicted 
                                 monthly values
04 Jan    75    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values    
05 Jan    95    Normal           Near predicted monthly values   

COMMENT: ASWFC Preliminary HF Communications Warning 1 was issued 
on 1 January and is current for 3 Jan only. ASWFC SWF HF Communications 
Warning 2 was issued on 1 January and is current for 1-3 Jan. 
Maximum usable frequencies (MUFs) were largely near predicted 
values during UT day 02-Jan, with enhancements between 25-40% 
observed in the Northern Australia and Niue Island region during 
local night hours. Low-frequency sporadic-E was observed, with 
spread F also observed in Hobart during local night hours. MUFs 
are expected to be 20-30% depressed on 03-Jan due to ongoing 
geomagnetic activity. Depressions of 15-20% are expected to remain 
over 04-Jan, before trending towards predicted monthly values 
by 05-Jan, as the geomagnetic activity subsides. Sporadic-E may 
be observed during local night hours. Shortwave fadeouts are 
possible.

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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