[Ips-dhfpr] ASWFC Daily HF Prop Report - 08 October 24 issued 2331 UT on 08 Oct 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/08 OCTOBER 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (08 OCTOBER) 
Date   T index  Conditions    
08 Oct   101    Fair-poor      

Flares    Max     Fadeout    Freq.  Sectors
  M1.2    0851UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Mostly near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Depressed by 30% during local day.
      Depressed by 20% during local night.
      Enhanced by 35% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 30% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      147
Oct      116
Nov      115


2. FORECAST (09 OCTOBER - 11 OCTOBER)
Date   T index  Conditions       MUFs                              
09 Oct   120    Normal-fair      Near predicted monthly values/depressed 
                                 5 to 10%
10 Oct   150    Normal           Near to 15% above predicted 
                                 monthly values    
11 Oct   160    Normal-fair      Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 114 was issued on 
8 October and is current for 8-10 Oct. Maximum usable frequencies 
(MUFs) on UT day 08-Oct in the Australian region were near predicted 
monthly values to depressed by up to 30%, with stronger depressions 
observed in the southern and western Australian regions. After 
local dawn however, the southern Australian region experienced 
enhancements of up to 35%. Significant spread F was observed 
at Hobart during local night. MUFs are expected to recover towards 
predicted monthly values on 09-Oct as geomagnetic activity wanes, 
with further mild depressions possible. MUFs are expected to 
be near predicted monthly values to 15% enhanced over 10-11 Oct. 
Shortwave fadeouts are possible.

----------------------------------------------------------
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