[Ips-dhfpr] ASWFC Daily HF Prop Report - 05 September 22 issued 2330 UT on 05 Sep 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/05 SEPTEMBER 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (05 SEPTEMBER) 
Date   T index  Conditions    
05 Sep    53    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    1806UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Depressed by 40% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values 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 (06 SEPTEMBER - 08 SEPTEMBER)
Date   T index  Conditions       MUFs                              
06 Sep    55    Normal-fair      Near predicted monthly values
07 Sep    55    Normal-fair      Near predicted monthly values    
08 Sep    55    Normal           Near predicted monthly values   

COMMENT: ASWFC HF Communications Warning 68 was issued on 5 September 
and is current for 5-7 Sep. Maximum usable frequencies (MUFs) 
on UT day 05-Sep were mostly near predicted monthly values for 
the Northern Australian region. MUFs were depressed by up to 
20% for the Southern Australian region during local day and near 
predicted monthly values during local night. Sporadic-E was observed 
across the Australian region, mostly during local night. Spread-F 
was observed at Hobart during local night. Regional MUFs are 
expected to be near predicted monthly values over 06-08 Sep, 
with the possibility of mild depressions in the Southern Australian 
region due to recent geomagnetic storming.

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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