[Ips-dhfpr] ASWFC Daily HF Prop Report - 28 May 26 issued 2330 UT on 28 May 2026 [SEC=OFFICIAL]

Fri May 29 09:30:51 AEST 2026

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/28 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (28 MAY) 
Date   T index  Conditions    
28 May    88    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available during local day.
      No data available during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Apr      74
May      71
Jun      68

2. FORECAST (29 MAY - 31 MAY)
Date   T index  Conditions       MUFs                              
29 May    85    Normal           Near predicted monthly values
30 May    75    Normal           Near predicted monthly values    
31 May    80    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were near predicted monthly values to 20% enhanced on 
UT day 28-May. Spread-F was observed at Hobart during local night 
hours. Ionospheric scintillation was observed at Niue Island 
over the interval 28/0907-0925UT. MUFs are expected to be near 
predicted monthly values over 29-31 May.

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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