[Ips-dhfpr] ASWFC Daily HF Prop Report - 13 March 26 issued 2330 UT on 13 Mar 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 MARCH 2026
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 MARCH) 
Date   T index  Conditions    
13 Mar   109    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.2    0955UT  possible   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Enhanced by 15% after local dawn.
   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 (14 MARCH - 16 MARCH)
Date   T index  Conditions       MUFs                              
14 Mar   100    Fair-normal      Near predicted monthly values
15 Mar    85    Fair-normal      Depressed 10 to 15%/near predicted 
                                 monthly values    
16 Mar    85    Normal           Depressed 10 to 15%/near predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region on UT day 13-Mar were mostly near predicted monthly values 
to 15% enhanced. MUFs are generally expected to be near predicted 
values over 14-16 Mar, with 15% depressions possible after local 
dawn for the southern Australian region during 15-16 Mar in association 
with mild geomagnetic activity.

----------------------------------------------------------
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