[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 October 23 issued 2331 UT on 30 Oct 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 OCTOBER) 
Date   T index  Conditions    
30 Oct   113    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      104
Oct      98
Nov      96


2. FORECAST (31 OCTOBER - 02 NOVEMBER)
Date   T index  Conditions       MUFs                              
31 Oct   110    Normal           Near predicted monthly values
01 Nov   115    Normal           Near to 15% above predicted 
                                 monthly values    
02 Nov   120    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC HF Communications Warning 106 was issued on 29 
October and is current for 29-31 Oct. Maximum usable frequencies( 
MUFs) were mostly near predicted monthly values in the Australian 
region. Spoardic-E was observed at Hobart, Canberra and Brisbane 
during local night hours. Degraded conditions were observed at 
Niue Island during local night hours. MUFs are expected to be 
near predicted monthly values on over 31-Oct to 02-Nov, with 
enhancements up to 15% possible over 01-02 Nov.

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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