[Ips-dhfpr] ASWFC Daily HF Prop Report - 22 August 24 issued 2330 UT on 22 Aug 2024 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 AUGUST 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 AUGUST) 
Date   T index  Conditions    
22 Aug   155    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.5    1039UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Enhanced by 40% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
      Enhanced by 25% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

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


2. FORECAST (23 AUGUST - 25 AUGUST)
Date   T index  Conditions       MUFs                              
23 Aug   160    Normal           15 to 25% above predicted monthly 
                                 values
24 Aug   160    Normal           15 to 25% above predicted monthly 
                                 values    
25 Aug   160    Normal           15 to 25% above predicted monthly 
                                 values   

COMMENT: ASWFC SWF HF Communications Warning 94 was issued on 
22 August and is current for 22-24 Aug. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 22-Aug were 15-25% 
enhanced. Ionospheric scintillation was observed at Niue during 
the interval 22/0959-1020UT. MUFs are expected to be 15-25% enhanced 
over 23-25 Aug. 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