[Ips-dhfpr] SWS Daily HF Prop Report - 16 January 22 issued 2338 UT on 16 Jan 2022

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/16 JANUARY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (16 JANUARY) 
Date   T index  Conditions    
16 Jan    29    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 35% during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Enhanced by 30% during local day.
      Enhanced by 20% during local night.
   Northern Australian Region:
      Enhanced by 15% during local day.
      Enhanced by 15% during local night.
   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      34
Jan      36
Feb      39


2. FORECAST (17 JANUARY - 19 JANUARY)
Date   T index  Conditions       MUFs                              
17 Jan    25    Normal-fair      Near predicted monthly values/depressed 
                                 15 to 25%
18 Jan    25    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 15%    
19 Jan    35    Normal           Near predicted monthly values   

COMMENT: Australian regional maximum usable frequencies (MUFs) 
were variable during local daytime (00-08 UT, 16 Jan) with some 
sites depressed by up to 35%. Degraded conditions were also observed 
subsequently during local nighttime in the north. Periods of 
depressed MUFs are expected on UT day 17 Jan due to continued 
elevated solar wind and on 18 Jan due to possible CME effects, 
with mostly normal conditions expected by 19 Jan.

----------------------------------------------------------
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.

Space Weather Services              email: asfc at bom.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp-out.sws.bom.gov.au
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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