[Ips-dhfpr] ASWFC Daily HF Prop Report - 26 April 25 issued 2331 UT on 26 Apr 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 APRIL 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 APRIL) 
Date   T index  Conditions    
26 Apr   123    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% 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
Mar      126
Apr      115
May      113


2. FORECAST (27 APRIL - 29 APRIL)
Date   T index  Conditions       MUFs                              
27 Apr   125    Normal           Near predicted monthly values
28 Apr   125    Normal           Near predicted monthly values    
29 Apr   125    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 26-Apr were near predicted monthly values to 
25% enhanced in northern Australian regions. Spread F was observed 
at Hobart during local night hours. Ionospheric scintillation 
was observed at Darwin and Weipa over the interval 26/1121-1510UT. 
MUFs are expected to be near predicted monthly values over 27-29 
Apr.

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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