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

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 MAY) 
Date   T index  Conditions    
24 May   140    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.4    0706UT  possible   lower  Mid East/Indian
  M1.0    0801UT  possible   lower  Mid East/Indian
  M1.3    0824UT  possible   lower  Mid East/Indian
  M1.4    2025UT  possible   lower  East Pacific/
                                    North American

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

PCA Event : No event.

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


2. FORECAST (25 MAY - 27 MAY)
Date   T index  Conditions       MUFs                              
25 May   130    Normal           Near to 15% above predicted 
                                 monthly values
26 May   130    Normal           Near to 15% above predicted 
                                 monthly values    
27 May   130    Normal           Near tp 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 55 was issued on 
23 May and is current for 23-25 May. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 24-May were near predicted 
monthly values to 15% enhanced. Spread F was observed at Hobart 
during local night hours. MUFs are expected to be near predicted 
monthly values to 15% enhanced over 25-27 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