[Ips-dhfpr] ASWFC Daily HF Prop Report - 31 May 23 issued 2331 UT on 31 May 2023 [SEC=OFFICIAL]

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SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/31 MAY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (31 MAY) 
Date   T index  Conditions    
31 May    93    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.0    0438UT  possible   lower  E. Asia/Aust.
  M1.0    1226UT  possible   lower  European
  M4.2    2252UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   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
Apr      120
May      87
Jun      88


2. FORECAST (01 JUNE - 03 JUNE)
Date   T index  Conditions       MUFs                              
01 Jun    95    Normal           Near predicted monthly values
02 Jun    95    Normal           Near predicted monthly values    
03 Jun    95    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 31-May were 
near predicted monthly values. Strong spread-F was observed at 
Hobart during local night hours. A fadeout impacting lower HF 
frequencies was observed at Niue at 21/2300UT. MUFs are expected 
to be near predicted monthly values over 01-03-Jun. Shortwave 
fadeouts are possible.

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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