[Ips-dhfpr] ASWFC Daily HF Prop Report - 16 October 24 issued 2331 UT on 16 Oct 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 OCTOBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 OCTOBER) 
Date   T index  Conditions    
16 Oct   143    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M3.0    0319UT  possible   lower  E. Asia/Aust.
  M3.7    0346UT  possible   lower  E. Asia/Aust.
  M2.8    0515UT  possible   lower  E. Asia/Aust.
  M1.5    1327UT  possible   lower  European
  M1.3    1442UT  possible   lower  South American/
                                    Atlantic
  M1.3    1500UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
      15% depressed during local day at Hobart.
   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 (17 OCTOBER - 19 OCTOBER)
Date   T index  Conditions       MUFs                              
17 Oct   140    Normal           Near predicted monthly values 
                                 to 15% enhanced
18 Oct   140    Normal           Near predicted monthly values 
                                 to 15% enhanced    
19 Oct   140    Normal-fair      Near predicted monthly values 
                                 to 15% enhanced   

COMMENT: ASWFC SWF HF Communications Warning 118 was issued on 
16 October and is current for 16-18 Oct. Maximum usable frequencies 
(MUFs) in the Australian region on 16-Oct were generally near 
predicted monthly values to 15% enhanced. Mildly (15%) depressed 
conditions were observed during the local day at Hobart. Spread 
F was observed during local night hours at Hobart. MUFs are expected 
to be near predicted monthly values to 15% enhanced over the 
17-19 Oct. A mild degradation in HF conditions may be experienced 
18-10 Oct for the southern Australian region during local night 
hours. 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