[Ips-dhfpr] ASWFC Daily HF Prop Report - 06 January 23 issued 2330 UT on 06 Jan 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/06 JANUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (06 JANUARY) 
Date   T index  Conditions    
06 Jan    65    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  X1.2    0057UT  probable   all    West Pacific

MUFs:
   Cocos Island Region:
      Depressed by 25% during local day.
      Near predicted monthly values during local night.
      Depressed by 40% after local dawn.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values.
   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 (07 JANUARY - 09 JANUARY)
Date   T index  Conditions       MUFs                              
07 Jan    75    Normal           Near predicted monthly values
08 Jan    75    Normal-fair      Near predicted monthly values    
09 Jan    75    Normal           Near predicted monthly values   

COMMENT: ASWFC SWF HF Communications Warning 3 was issued on 
6 January and is current for 6-8 Jan. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 06-Jan were near predicted 
monthly values. Spread F was observed at Hobart during local 
night. MUFs are expected to be near predicted monthly values 
over 07-09 Jan. There is a chance of mild degradation in HF conditions 
during local night on 08-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