[Ips-dhfpr] ASWFC Daily HF Prop Report - 09 January 23 issued 2331 UT on 09 Jan 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/09 JANUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (09 JANUARY) 
Date   T index  Conditions    
09 Jan   118    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M1.1    0103UT  possible   lower  West Pacific
  M2.2    0901UT  possible   lower  Mid East/Indian
  M1.0    1322UT  possible   lower  European
  X2.0    1850UT  probable   all    East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Enhanced by 20% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Enhanced by 15-30%.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Dec      84
Jan      71
Feb      72


2. FORECAST (10 JANUARY - 12 JANUARY)
Date   T index  Conditions       MUFs                              
10 Jan   105    Normal           Near to 15% above predicted 
                                 monthly values
11 Jan   105    Normal           Near to 15% above predicted 
                                 monthly values    
12 Jan   105    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 4 was issued on 
8 January and is current for 8-10 Jan. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 09-Jan were near predicted 
monthly values to 25% enhanced. A fadeout was observed at Niue 
09/1850-1920UT. MUFs are expected to be near predicted monthly 
values to 15% enhanced over 10-12 Jan. There is a chance of mild 
degradation in HF conditions during local night over 10-11 Jan. 
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