[Ips-dhfpr] ASWFC Daily HF Prop Report - 02 October 23 issued 2331 UT on 02 Oct 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/02 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (02 OCTOBER) 
Date   T index  Conditions    
02 Oct   122    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.9    1246UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 50% during local night.
   Niue Island Region:
      Enhanced by 15% during local day and night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20-25% during local night and 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
Sep      104
Oct      98
Nov      96


2. FORECAST (03 OCTOBER - 05 OCTOBER)
Date   T index  Conditions       MUFs                              
03 Oct   120    Normal           Near to 15% above predicted 
                                 monthly values
04 Oct   120    Normal           Near to 15% above predicted 
                                 monthly values    
05 Oct   120    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 103 was issued on 
2 October and is current for 2-4 Oct. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 02-Oct were near predicted 
monthly values to 20% enhanced. MUFs are expected to be near 
predicted monthly values to 15% enhanced over 03-05 Oct. Isolated 
minor 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