[Ips-dhfpr] ASWFC Daily HF Prop Report - 29 March 26 issued 2330 UT on 29 Mar 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/29 MARCH 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (29 MARCH) 
Date   T index  Conditions    
29 Mar    84    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      Near predicted monthly values.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Feb      98
Mar      87
Apr      85


2. FORECAST (30 MARCH - 01 APRIL)
Date   T index  Conditions       MUFs                              
30 Mar    95    Fair-normal      Near predicted monthly values
31 Mar    70    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values    
01 Apr    80    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 29-Mar were generally near predicted values 
with 15% depressions observed during local night hours in the 
southern Australian region. Spread F was observed at Hobart and 
Perth during the local night. MUFs are expected to be near predicted 
monthly values on 30-Mar and 15% depressed to near predicted 
monthly values on 31-Mar due to expected mild geomagnetic activity 
associated with a coronal hole wind stream. Mildly degraded HF 
conditions may be experienced during local night hours during 
30-31 Mar.

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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