[Ips-dhfpr] ASWFC Daily HF Prop Report - 27 February 25 issued 2330 UT on 27 Feb 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 FEBRUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 FEBRUARY) 
Date   T index  Conditions    
27 Feb   129    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Mostly near predicted monthly values.
      Depressed by 30% after local dawn.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% 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 (28 FEBRUARY - 02 MARCH)
Date   T index  Conditions       MUFs                              
28 Feb   120    Fair             Near predicted monthly values
01 Mar   110    Fair             Near predicted monthly values    
02 Mar   110    Normal-fair      Near predicted monthly values   

COMMENT: Maximum usable frequencies (MUFs) on UT day 27-Feb in 
the Australian region were near predicted monthly values, with 
enhancements of up to 15% in the northern Australian region and 
depressions after local dawn in the southern Australian region. 
MUFs are expected to be near predicted monthly values over 28-Feb 
to 02-Mar, with the chance of mild degradations due to anticipated 
geomagnetic activity. 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