[Ips-dhfpr] ASWFC Daily HF Prop Report - 28 October 24 issued 2331 UT on 28 Oct 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 OCTOBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 OCTOBER) 
Date   T index  Conditions    
28 Oct   139    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M2.8 27/2324UT  possible   lower  West Pacific
  M1.3    0409UT  possible   lower  E. Asia/Aust.
  M1.2    1444UT  possible   lower  South American/
                                    Atlantic
  M4.2    1628UT  possible   lower  South American/
                                    Atlantic

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.
      Proton event in progress, increased absorption observed.

PCA Event : 10MeV Proton/PCA Event Began 26 10 2024 1850UT and is in progress

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


2. FORECAST (29 OCTOBER - 31 OCTOBER)
Date   T index  Conditions       MUFs                              
29 Oct   130    Normal           Near predicted values to 20% 
                                 enhanced
30 Oct   135    Normal           Near predicted monthly values 
                                 to 20% enhanced    
31 Oct   140    Normal           Near predicted monthly values 
                                 to 20% enhanced   

COMMENT: ASWFC SWF HF Communications Warning 124 was issued on 
28 October and is current for 29-31 Oct. Maximum usable frequencies 
(MUFs) on UT day 28-Oct were near predicted values to 30% enhanced. 
Sporadic E was observed in Hobart and Norfolk Island during local 
night hours. Spread-F was observed in Hobart. Scintillation was 
observed at Darwin and Weipa from 1310 to 1820 UT. MUFs are expected 
to be near predicted values to 20% enhanced over 29-31 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