[Ips-dhfpr] ASWFC Daily HF Prop Report - 01 January 24 issued 2330 UT on 01 Jan 2024 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 JANUARY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 JANUARY) 
Date   T index  Conditions    
01 Jan   109    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M2.3    0854UT  possible   lower  Mid East/Indian
  M4.7    1225UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Niue Island Region:
      Enhanced by 15% during local day.
      Enhanced by 30% during 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):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      110
Jan      98
Feb      95


2. FORECAST (02 JANUARY - 04 JANUARY)
Date   T index  Conditions       MUFs                              
02 Jan   115    Normal           Near to 15% above predicted 
                                 monthly values
03 Jan   115    Normal-fair      Near predicted monthly values    
04 Jan   115    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 1-Jan in the Australian region were near predicted 
monthly values, with 15% enhancements observed in the northern 
Australian region during local night. Sporadic E was observed 
at Canberra and Cocos Islands and spread F was observed at Learmonth. 
MUFs are expected to be near predicted monthly values to 15% 
enhanced over 2-Jan. MUFs are expected to be near predicted monthly 
values on 3-4 Jan, with a chance of mild depressions in the southern 
Australian region 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