[Ips-dhfpr] ASWFC Daily HF Prop Report - 27 September 22 issued 2331 UT on 27 Sep 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 SEPTEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 SEPTEMBER) 
Date   T index  Conditions    
27 Sep    90    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Enhanced by 50% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   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 (28 SEPTEMBER - 30 SEPTEMBER)
Date   T index  Conditions       MUFs                              
28 Sep    80    Normal           Near predicted monthly values 
                                 to 15-20% enhanced
29 Sep    80    Normal           Near predicted monthly values 
                                 to 15-20% enhanced    
30 Sep    80    Normal           Near predicted monthly values 
                                 to 15-20% enhanced   

COMMENT: Maximum usable frequencies (MUFs) on UT day 27-Sep were 
mostly enhanced by 15-20% in the Australian region. Sporadic-E 
was observed in Brisbane and spread F was observed at Hobart 
during local night. Mildly degraded conditions were observed 
in most sites due to geomagnetic activity on 27-Sep. Regional 
MUFs are expected to be 15-20% enhanced to near monthly predicted 
values over 28-30 Sep.

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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