[Ips-dhfpr] ASWFC Daily HF Prop Report - 24 May 26 issued 2330 UT on 24 May 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/24 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (24 MAY) 
Date   T index  Conditions    
24 May    67    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.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   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      74
May      71
Jun      68


2. FORECAST (25 MAY - 27 MAY)
Date   T index  Conditions       MUFs                              
25 May    70    Normal           Near predicted monthly values
26 May    70    Normal           Near predicted monthly values    
27 May    70    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were largely near predicted values on UT day 24-May, with 
some depressions of up to 15% seen in the Northern Australian 
region during local night hours. Spread-F was observed across 
the Australian region during local night hours, with strong spread-F 
reported at Hobart. MUFs are expected to remain near predicted 
values over 25-27 May, with isolated shortwave fadeouts possible 
on 27-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