[Ips-dhfpr] ASWFC Daily HF Prop Report - 31 August 24 issued 2330 UT on 31 Aug 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 AUGUST 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 AUGUST) 
Date   T index  Conditions    
31 Aug   133    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0049UT  possible   lower  West Pacific
  M1.2    0238UT  possible   lower  E. Asia/Aust.
  M1.2    0859UT  possible   lower  Mid East/Indian
  M1.8    1302UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Enhanced by 20% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values to 15% enhanced.
      Depressed 15% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      131
Aug      119
Sep      119


2. FORECAST (01 SEPTEMBER - 03 SEPTEMBER)
Date   T index  Conditions       MUFs                              
01 Sep   125    Fair-normal      Initially depressed 15% then 
                                 near predicted monthly values 
                                 to 15% enhanced
02 Sep   145    Normal           Near to 15% above predicted 
                                 monthly values    
03 Sep   145    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 96 was issued on 
31 August and is current for 31 Aug to 2 Sep. Maximum usable 
frequencies (MUFs) in the Australian region on UT day 31-Aug 
were near predicted monthly values to 15% enhanced. Spread F 
was observed at Hobart and Perth during local night hours. Southern 
Australian region MUFs are 15% depressed after local dawn this 
morning and are expected to recover during the local day today. 
Northern Australian region MUFs are near predicted values after 
local dawn. MUFs are expected to be near predicted monthly values 
to 15% enhanced over 02-03 Sep. Shortwave fadeouts are possible.

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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