[Ips-dhfpr] ASWFC Daily HF Prop Report - 15 March 26 issued 2330 UT on 15 Mar 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 MARCH 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 MARCH) 
Date   T index  Conditions    
15 Mar    89    Fair-normal    

Flares    Max     Fadeout    Freq.  Sectors
  M1.0    0939UT  possible   lower  Mid East/Indian

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

PCA Event : No event.

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


2. FORECAST (16 MARCH - 18 MARCH)
Date   T index  Conditions       MUFs                              
16 Mar    85    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values
17 Mar   100    Normal           Near predicted monthly values    
18 Mar   100    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 15-Mar were mostly near predicted monthly values, 
with 15% depressions at Hobart and Canberra. Strong spread F 
was observed at Hobart during predawn hours. Southern Australian 
region MUFs are 15% depressed after local dawn this morning. 
Southern Australian region HF conditions may be mildly degraded 
during local night hours. MUFs are expected to be near predicted 
monthly values over 17-18 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