[Ips-dhfpr] ASWFC Daily HF Prop Report - 28 September 22 issued 2330 UT on 28 Sep 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 SEPTEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 SEPTEMBER) 
Date   T index  Conditions    
28 Sep    79    Normal         

Flares: none.

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

PCA Event : No event.

Monthly T index:
Month  T index
Aug      53
Sep      68
Oct      69


2. FORECAST (29 SEPTEMBER - 01 OCTOBER)
Date   T index  Conditions       MUFs                              
29 Sep    80    Normal           Near predicted monthly values
30 Sep    80    Normal           Near predicted monthly values    
01 Oct    70    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 15%   

COMMENT: Maximum usable frequencies (MUFs) on UT day 28-Sep were 
mostly near predicted monthly values to enhanced by 15-20% in 
the Australian region. Equatorial ionospheric scintillation was 
observed at Weipa and Darwin during the period 11-15UT on 28 
Sep. In general, regional MUFs are expected to be near to 15% 
above monthly predicted values over the next three days. Degraded 
conditions may be experienced during local night hours for southern 
Australian region on 01-Oct in association with an anticipated 
increase in geomagnetic activity. Depressed conditions may be 
experienced after local dawn on 02-Oct for southern Australian 
region.

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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