[Ips-dhfpr] ASWFC Daily HF Prop Report - 19 August 22 issued 2330 UT on 19 Aug 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/19 AUGUST 2022
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 AUGUST) 
Date   T index  Conditions    
19 Aug    61    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
  M1.6    0444UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   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
Jul      65
Aug      67
Sep      68


2. FORECAST (20 AUGUST - 22 AUGUST)
Date   T index  Conditions       MUFs                              
20 Aug    60    Fair-normal      Near predicted monthly values
21 Aug    60    Fair-normal      Near predicted monthly values    
22 Aug    60    Fair-normal      Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 60 was issued on 17 
August and is current for 18-20 Aug. Maximum usable frequencies 
(MUFs) on UT day 19-Aug were mostly near predicted monthly values. 
Spread-F was observed during local night in the Australian region. 
Regional MUFs are expected to be mostly near predicted monthly 
values with continued degradation during local night hours.

----------------------------------------------------------
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