[Ips-dhfpr] ASWFC Daily HF Prop Report - 20 November 24 issued 2331 UT on 20 Nov 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 NOVEMBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 NOVEMBER) 
Date   T index  Conditions    
20 Nov   105    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    1948UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 25% 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
Oct      139
Nov      119
Dec      117


2. FORECAST (21 NOVEMBER - 23 NOVEMBER)
Date   T index  Conditions       MUFs                              
21 Nov   110    Normal           Near predicted monthly values
22 Nov   110    Normal           Near predicted monthly values    
23 Nov   110    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 20-Nov in 
the Australian region were near predicted monthly values. Southern 
Australian region sites are depressed by 25% after local dawn 
this morning. Spread F was observed at Hobart during local night 
hours. MUFs are generally expected to be near predicted monthly 
values over 21-23 Nov. 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