[Ips-dhfpr] ASWFC Daily HF Prop Report - 02 January 24 issued 2330 UT on 02 Jan 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/02 JANUARY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (02 JANUARY) 
Date   T index  Conditions    
02 Jan   104    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    1831UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 30% for the first half of local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Southern Australian Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      110
Jan      106
Feb      105


2. FORECAST (03 JANUARY - 05 JANUARY)
Date   T index  Conditions       MUFs                              
03 Jan   105    Normal-fair      Near predicted monthly values
04 Jan   105    Normal           Near predicted monthly values    
05 Jan   105    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 134 was issued on 
31 December and is current for 1-3 Jan. Maximum usable frequencies 
(MUFs) on UT day 2-Jan in the Australian region were near predicted 
monthly values, with 15% enhancements observed in the northern 
Australian region during local night. Isolated periods of sporadic 
E was observed at Canberra and Hobart and spread F was observed 
at Canberra during local night. MUFs are expected to be near 
predicted monthly values over 3-5 Jan, with a chance of mild 
depressions in the southern Australian region over 3-4 Jan due 
to anticipated geomagnetic activity. Shortwave fadeouts are probable.

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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