[Ips-dhfpr] ASWFC Daily HF Prop Report - 10 January 26 issued 2330 UT on 10 Jan 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/10 JANUARY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (10 JANUARY) 
Date   T index  Conditions    
10 Jan   100    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
      Depressed by 30% after local dawn.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 30% after local dawn.
   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 (11 JANUARY - 13 JANUARY)
Date   T index  Conditions       MUFs                              
11 Jan    65    Fair             15 to 30% below predicted monthly 
                                 values
12 Jan    85    Normal           Near predicted monthly values    
13 Jan    85    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region were initially near predicted monthly values on UT day 
10-Jan, tending towards depressions by the end of the UT day. 
MUFs are 30% depressed after local dawn due to ongoing geomagnetic 
activity. Spread F was observed at Hobart. MUFs are expected 
to be continue to be depressed by 15-30% on 11-Jan. MUFs are 
expected to recover to predicted monthly values over 12-13 Jan.

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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