[Ips-dhfpr] ASWFC Daily HF Prop Report - 07 January 25 issued 2330 UT on 07 Jan 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/07 JANUARY 2025
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (07 JANUARY) 
Date   T index  Conditions    
07 Jan   138    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    2306UT  possible   lower  West Pacific

MUFs:
   Cocos Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Near predicted monthly values.
   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 (08 JANUARY - 10 JANUARY)
Date   T index  Conditions       MUFs                              
08 Jan   145    Normal           Near predicted values to 15% 
                                 enhanced
09 Jan   145    Normal           Near predicted values to 15% 
                                 enhanced    
10 Jan   145    Normal           Near predicted values to 15% 
                                 enhanced   

COMMENT: ASWFC SWF HF Communications Warning 5 was issued on 
6 January and is current for 7-9 Jan. Maximum usable frequencies 
(MUFs) on UT day 7-Jan were both enhanced and depressed in the 
northern Australian region and near predicted values in the southern 
region. Conditions were degraded in Brisbane during local daylight 
hours. Sporadic-E was common at most sites during local night 
hours. MUFs are expected to be near predicted values to 15% enhanced 
over 8-10 Jan.

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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