[Ips-dhfpr] ASWFC Daily HF Prop Report - 22 May 24 issued 2330 UT on 22 May 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 MAY) 
Date   T index  Conditions    
22 May   126    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.5    0313UT  possible   lower  E. Asia/Aust.
  M2.3    0404UT  possible   lower  E. Asia/Aust.
  M1.2    1405UT  possible   lower  South American/
                                    Atlantic

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

PCA Event : No event.

Monthly T index:
Month  T index
Apr      125
May      114
Jun      116


2. FORECAST (23 MAY - 25 MAY)
Date   T index  Conditions       MUFs                              
23 May   130    Normal           Near to 15% above predicted 
                                 monthly values
24 May   130    Normal           Near to 15% above predicted 
                                 monthly values    
25 May   130    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 22-May were near predicted monthly values. Spread 
F was observed at Hobart during local night hours. MUFs are expected 
to be near predicted monthly values to 15% enhanced over 23-25 
May. 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