[Ips-dhfpr] ASWFC Daily HF Prop Report - 19 November 25 issued 2330 UT on 19 Nov 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 NOVEMBER 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 NOVEMBER) 
Date   T index  Conditions    
19 Nov   114    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% 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
Oct      104
Nov      89
Dec      90


2. FORECAST (20 NOVEMBER - 22 NOVEMBER)
Date   T index  Conditions       MUFs                              
20 Nov   115    Normal           Near to 15% above predicted 
                                 monthly values
21 Nov   105    Normal           Near to 15% above predicted 
                                 monthly values    
22 Nov   115    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) were largely near 
predicted monthly values in the Australian region, with 20% enhancements 
observed in the Northern Australian region during local night. 
Spread-F was observed at Hobart and Sporadic-E was observed at 
Townsville and Perth during local night hours. MUFs are expected 
to be near predicted monthly values to enhanced by 15% over the 
period 20-22 Nov.

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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