[Ips-dhfpr] ASWFC Daily HF Prop Report - 07 August 24 issued 2336 UT on 07 Aug 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 AUGUST 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 AUGUST) 
Date   T index  Conditions    
07 Aug   147    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.8    0230UT  possible   lower  E. Asia/Aust.
  M1.1    0457UT  possible   lower  E. Asia/Aust.
  M4.5    1350UT  possible   lower  European
  M5.0    1854UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 40-50%.
   Niue Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values 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 during local day.
      Enhanced by 15% during local night.
      Enhanced by 20% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

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


2. FORECAST (08 AUGUST - 10 AUGUST)
Date   T index  Conditions       MUFs                              
08 Aug   135    Normal           Near predicted monthly values 
                                 to 15% enhanced
09 Aug   135    Normal-fair      Near predicted monthly values 
                                 to 15% enhanced    
10 Aug   135    Fair             Near predicted monthly values 
                                 to 15% enhanced   

COMMENT: ASWFC SWF HF Communications Warning 86 was issued on 
5 August and is current for 6-8 Aug. Maximum usable frequencies 
(MUFs) in the Australian region on 07-Aug were near predicted 
values to 20% enhanced. Brief weak scintillation was observed 
at Niue 07/0830UT. MUFs are expected to be near predicted values 
to 15% enhanced over 08-10 Aug. Degraded conditions are expected 
for local night hours on 10-Aug due to an anticipated increase 
in geomagnetic activity. Southern Australian region MUFs may 
become 15% depressed on 11-Aug if geomagnetic activity eventuates.

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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