[Ips-dhfpr] SWS Daily HF Prop Report - 17 January 22 issued 2347 UT on 17 Jan 2022

rwc rwc at ips.gov.au
Tue Jan 18 10:47:45 EST 2022


SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/17 JANUARY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (17 JANUARY) 
Date   T index  Conditions    
17 Jan    36    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 30% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values 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      34
Jan      36
Feb      39


2. FORECAST (18 JANUARY - 20 JANUARY)
Date   T index  Conditions       MUFs                              
18 Jan    40    Normal           Near predicted monthly values
19 Jan    50    Normal           Near predicted monthly values    
20 Jan    25    Normal-fair      Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 4 was issued on 16 
January and is current for 17-19 Jan. SWS HF Communications Warning 
5 was issued on 16 January and is current for 17-18 Jan. Australian 
regional maximum usable frequencies (MUFs) were near predicted 
monthly values with occasional brief depressions to 35% mostly 
during local day. MUFs are expected to be mostly near predicted 
monthly values on 18-19 January with depressions on 20 January.

----------------------------------------------------------
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
PO Box 1386                         WWW: http://www.sws.bom.gov.au
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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