[Ips-dhfpr] ASWFC Daily HF Prop Report - 27 October 23 issued 2330 UT on 27 Oct 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 OCTOBER) 
Date   T index  Conditions    
27 Oct   118    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.4 26/2324UT  possible   lower  West Pacific

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Enhanced by 15% 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      104
Oct      98
Nov      96


2. FORECAST (28 OCTOBER - 30 OCTOBER)
Date   T index  Conditions       MUFs                              
28 Oct   120    Normal           Near to 15% above predicted 
                                 monthly values
29 Oct   120    Normal           Near to 15% above predicted 
                                 monthly values    
30 Oct   120    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 105 was issued on 
26 October and is current for 27-28 Oct. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 27-Oct were near predicted 
monthly values, with enhancements of up to 15% during local day 
in the southern Australian region and mild depressions at Learmonth 
and Perth during local day. MUFs are expected to be near predicted 
monthly values to 15% enhanced over 28-30 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