[Ips-dhfpr] ASWFC Daily HF Prop Report - 25 May 26 issued 0011 UT on 26 May 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 MAY 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 MAY) 
Date   T index  Conditions    
25 May    76    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.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   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 (26 MAY - 28 MAY)
Date   T index  Conditions       MUFs                              
26 May    80    Normal           Near predicted monthly values
27 May    80    Normal           Near predicted monthly values    
28 May    80    Normal           Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were largely near predicted values on UT day 25-May, with 
enhanced conditions of up to 15% seen in the southern Australian 
region in the last few hours. Spread-F was observed at Brisbane, 
Canberra and Hobart during local night hours. MUFs are expected 
to remain near predicted monthly values over 26-28 May.

----------------------------------------------------------
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