[Ips-dhfpr] ASWFC Daily HF Prop Report - 15 February 25 issued 2330 UT on 15 Feb 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 FEBRUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 FEBRUARY) 
Date   T index  Conditions    
15 Feb    90    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 during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Mostly near predicted monthly values.
   Southern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jan      124
Feb      118
Mar      115


2. FORECAST (16 FEBRUARY - 18 FEBRUARY)
Date   T index  Conditions       MUFs                              
16 Feb    90    Normal-fair      Depressed 15%/near predicted 
                                 monthly values
17 Feb    90    Normal           Depressed 15%/near predicted 
                                 monthly values    
18 Feb   110    Normal           Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 15-Feb in 
the Australian region were near predicted monthly values to 15-25% 
depressed. Depressions were observed in southern Australian regions. 
MUFs are expected to be near predicted monthly values to 15% 
depressed over 16-17 Feb. MUFs are expected to be near predicted 
monthly values on 18-Feb. Shortwave fadeouts are possible.

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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