[Ips-dhfpr] ASWFC Daily HF Prop Report - 30 January 25 issued 2335 UT on 30 Jan 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 JANUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 JANUARY) 
Date   T index  Conditions    
30 Jan   147    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced 15% during local night.
      Enhanced 15% after local dawn.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Enhanced 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
Dec      132
Jan      119
Feb      116


2. FORECAST (31 JANUARY - 02 FEBRUARY)
Date   T index  Conditions       MUFs                              
31 Jan   145    Fair-normal      Near predicted monthly values 
                                 to 15% enhanced
01 Feb   120    Fair             Near predicted monthly values/depressed 
                                 10 to 15%    
02 Feb   105    Fair             Depressed 10 to 20%/near predicted 
                                 monthly values   

COMMENT: Maximum usable frequencies (MUFs) in the Australian 
region were near predicted values to 15% enhanced on UT day 30-Jan. 
Mild spread-F was observed at Hobart during local night hours. 
Southern Australian region MUFs were 15% enhanced after local 
dawn. MUFs are expected to be near predicted values to 15% enhanced 
for 31-Jan. A mild increase in geomagnetic activity is expected 
from late 31-Jan and southern Australian region MUFs may become 
mildly depressed at times during the interval 01-02 Feb. Isolated 
minor 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