[Ips-dhfpr] ASWFC Daily HF Prop Report - 23 January 26 issued 2331 UT on 23 Jan 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 JANUARY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 JANUARY) 
Date   T index  Conditions    
23 Jan    81    Normal         

Flares: none.

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

PCA Event : No event.

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


2. FORECAST (24 JANUARY - 26 JANUARY)
Date   T index  Conditions       MUFs                              
24 Jan    75    Normal-fair      Near predicted monthly values
25 Jan    75    Normal           Near predicted monthly values    
26 Jan    75    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were mostly near predicted monthly values on UT day 23-Jan. 
Spread-F was observed at Hobart during local night hours. Ionospheric 
scintillation was observed at Niue Island over the interval 23/1410-1428UT. 
MUFs in the Australian region are expected to be near predicted 
monthly values over 24-26 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