[Ips-dhfpr] SWS Daily HF Prop Report - 26 October 21 issued 2331 UT on 26 Oct 2021

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 OCTOBER 2021 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 OCTOBER) 
Date   T index  Conditions    
26 Oct    29    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.3    0247UT  possible   lower  E. Asia/Aust.
  M1.0    1557UT  possible   lower  South American/
                                    Atlantic

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

PCA Event : No event.

Monthly T index:
Month  T index
Sep      24
Oct      29
Nov      33


2. FORECAST (27 OCTOBER - 29 OCTOBER)
Date   T index  Conditions       MUFs                              
27 Oct    30    Normal           Near predicted monthly values
28 Oct    30    Normal           Near predicted monthly values    
29 Oct    30    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 26 was issued on 25 
October and is current for 26-28 Oct. MUFs in the Australian 
region on UT day 26 October were mostly near predicted monthly 
values. Mild to moderate enhancements were observed in the Northern 
Australian region during local night. MUFs are likely to be near 
predicted monthly values on 27-29 October. Shortwave fadeouts 
may happen due to possible M-class flares.

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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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
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