[Ips-dhfpr] ASWFC Daily HF Prop Report - 11 January 26 issued 2330 UT on 11 Jan 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 JANUARY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 JANUARY) 
Date   T index  Conditions    
11 Jan    19    Poor           

Flares    Max     Fadeout    Freq.  Sectors
  M3.3    2314UT  possible   lower  West Pacific

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 30% during local night.
      Depressed by 40% after local dawn.
   Southern Australian Region:
      Depressed by 35% during local day.
      Depressed by 35% during local night.
      Depressed by 35% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 25% over the UT day.

PCA Event : No event.

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


2. FORECAST (12 JANUARY - 14 JANUARY)
Date   T index  Conditions       MUFs                              
12 Jan    30    Fair-poor        20 to 30% below predicted monthly 
                                 values
13 Jan    65    Normal           Depressed 15%/near predicted 
                                 monthly values    
14 Jan    85    Normal           Near predicted monthly values   

COMMENT: ASWFC HF Communications Warning 6 was issued on 11 January 
and is current for 11-12 Jan. ASWFC SWF HF Communications Warning 
7 was issued on 11 January and is current for 12-14 Jan. Maximum 
usable frequencies (MUFs) in the Australian region were depressed 
by 35-40% on UT day 11-Jan. Spread F was observed at Hobart and 
Perth during local night hours. MUFs are expected to continue 
to be depressed by 20-30% on 12-Jan, and 15% depressed on 13-Jan. 
MUFs are expected to recover to predicted monthly values on UT 
day 14-Jan. 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