[Ips-dhfpr] ASWFC Daily HF Prop Report - 16 January 23 issued 2330 UT on 16 Jan 2023 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: ASWFC DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 JANUARY 2023
FROM THE AUSTRALIAN SPACE WEATHER FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 JANUARY) 
Date   T index  Conditions    
16 Jan    92    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 35% during local night.
   Niue Island Region:
      Enhanced by 25% during local day.
      Near predicted monthly values during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Southern Australian Region:
      Depressed by 25% during local day.
      Near predicted monthly values 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 (17 JANUARY - 19 JANUARY)
Date   T index  Conditions       MUFs                              
17 Jan    95    Normal           Near to 15% above predicted 
                                 monthly values
18 Jan    95    Normal           Near to 15% above predicted 
                                 monthly values    
19 Jan    95    Normal-fair      Near to 15% above predicted 
                                 monthly values   

COMMENT: ASWFC SWF HF Communications Warning 7 was issued on 
14 January and is current for 16-18 Jan. Maximum usable frequencies 
(MUFs) in the Australian region on UT day 16-Jan were near predicted 
monthly values to 20% enhanced in Northern Australia. Southern 
Australian region MUFs were depressed by 25% during local day. 
MUFs are generally expected to be near predicted monthly values 
to 15% enhanced over 17-19 Jan. Mild degradations due to increased 
geomagnetic activity are possible over 18-19 Jan. Shortwave fadeouts 
are possible.

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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