[Ips-dhfpr] ASWFC Daily HF Prop Report - 14 April 26 issued 2330 UT on 14 Apr 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 APRIL 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 APRIL) 
Date   T index  Conditions    
14 Apr    63    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 20% 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      92
Apr      83
May      81


2. FORECAST (15 APRIL - 17 APRIL)
Date   T index  Conditions       MUFs                              
15 Apr    80    Fair-normal      Near predicted monthly values
16 Apr    80    Fair-normal      Near predicted monthly values    
17 Apr    80    Fair-normal      Near predicted monthly values   

COMMENT: Maximum Usable Frequencies (MUFs) in the Australian 
region were largely near predicted values during local daylight 
hours. Depressions of up to 20% were observed in the Southern 
Australian region, Niue Island, and the Cocos Islands during 
local night hours. Spread-F was also reported in Hobart during 
local night hours, and sporadic-E was also observed at Darwin. 
MUFs are expected to remain near predicted monthly values over 
15-17 Apr, with some mild depressions possible during local night 
hours.

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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