[Ips-dhfpr] ASWFC Daily HF Prop Report - 26 October 23 issued 2332 UT on 26 Oct 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 OCTOBER 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 OCTOBER) 
Date   T index  Conditions    
26 Oct   133    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 40% during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% 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 (27 OCTOBER - 29 OCTOBER)
Date   T index  Conditions       MUFs                              
27 Oct   120    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed
28 Oct   120    Normal-fair      Near predicted monthly values 
                                 to 10-15% depressed    
29 Oct   130    Normal           Near predicted monthly values 
                                 to 10-15% enhanced   

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 26-Oct were near predicted 
monthly values to 20% enhanced. Sporadic-E was observed at low 
latitude regions during local dusk and night hours. MUFs are 
expected to be near predicted values, with possible depressions 
of 10-15% over 27-28 Oct due to some mild geomagnetic activity. 
MUFs are expected to be near predicted monthly values to 10-15% 
enhanced by 29-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