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

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 MARCH 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 MARCH) 
Date   T index  Conditions    
26 Mar    74    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M3.9    0623UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Niue Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed 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
Feb      98
Mar      87
Apr      85


2. FORECAST (27 MARCH - 29 MARCH)
Date   T index  Conditions       MUFs                              
27 Mar    90    Normal           Near predicted monthly values
28 Mar   100    Normal-fair      Near predicted monthly values    
29 Mar    90    Normal-fair      Near predicted monthly values 
                                 to 15% depressed   

COMMENT: ASWFC SWF HF Communications Warning 29 was issued on 
26 March and is current for 26-27 Mar. Maximum usable frequencies 
(MUFs) in the Australian region were near predicted values to 
25% depressed. Sporadic-E was observed along the east coast of 
Australia during local night hours. Scintillation was observed 
in Weipa from 1324 to 1340 UT. MUFs in the Australian region 
are expected to recover over 27-28 Mar, and then possibly become 
depressed by 29-Mar due to coronal hole activity.

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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