[Ips-dhfpr] ASWFC Daily HF Prop Report - 18 October 24 issued 2330 UT on 18 Oct 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/18 OCTOBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (18 OCTOBER) 
Date   T index  Conditions    
18 Oct   150    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    1736UT  possible   lower  South American/
                                    Atlantic
  M4.9    1938UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 50% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      147
Oct      116
Nov      115


2. FORECAST (19 OCTOBER - 21 OCTOBER)
Date   T index  Conditions       MUFs                              
19 Oct   150    Normal           Near predicted monthly values 
                                 to 20% enhanced
20 Oct   150    Normal           Near predicted monthly values 
                                 to 20% enhanced    
21 Oct   155    Normal           Near predicted monthly values 
                                 to 20% enhanced   

COMMENT: ASWFC SWF HF Communications Warning 119 was issued on 
18 October and is current for 19-20 Oct. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 18-Oct were near predicted 
values to 20% enhanced. Conditions were generally normal. MUFs 
are expected to be near predicted values to 20% enhanced over 
19-21 Oct.

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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