[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 August 22 issued 2331 UT on 30 Aug 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 AUGUST) 
Date   T index  Conditions    
30 Aug    54    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.7    0140UT  possible   lower  West Pacific
  M2.1    1929UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Depressed by 50% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      65
Aug      67
Sep      68


2. FORECAST (31 AUGUST - 02 SEPTEMBER)
Date   T index  Conditions       MUFs                              
31 Aug    55    Normal-fair      Near predicted monthly values
01 Sep    55    Normal-fair      Near predicted monthly values    
02 Sep    50    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 65 was issued on 
29 August and is current for 29-31 Aug. Maximum usable frequencies 
(MUFs) on UT day 30-Aug were near predicted monthly values to 
20% depressed, particularly at local night. Sporadic E was observed 
at most sites. Spread-F was observed at most northern Australian 
sites. Regional MUFs ar expected to be mostly near predicted 
monthly values over 31-Aug to 02-Sep. Mild depressions are possible 
over the period due to the effects of a coronal hole high speed 
wind stream.

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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