[Ips-dhfpr] SWS Daily HF Prop Report - 03 February 22 issued 2337 UT on 03 Feb 2022

[rwc]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/03 FEBRUARY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (03 FEBRUARY) 
Date   T index  Conditions    
03 Feb    70    Normal-poor    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values.
   Niue Island Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Enhanced by 20% during local day.
      Enhanced by 70% during local night.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 25% during local night.
      Depressed by 20% after local dawn.
   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
Jan      46
Feb      38
Mar      41


2. FORECAST (04 FEBRUARY - 06 FEBRUARY)
Date   T index  Conditions       MUFs                              
04 Feb     0    Poor-fair        Depressed 15 to 25%/near predicted 
                                 monthly values
05 Feb    65    Normal           Near to 15% above predicted 
                                 monthly values    
06 Feb    65    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Australian regional maximum usable frequencies (MUFs) 
were near to 70% above predicted monthly values on 3 February. 
The ionosphere for southern region Australia was expected to 
remain depressed during the local day yesterday, but recovered 
more quickly then became enhanced. Degraded HF conditions were 
observed for the southern region Australia during local night 
hours due to unexpected overnight geomagnetic storm activity. 
As a result of this overnight geomagnetic activity the regional 
ionosphere is depressed about 20-30% in the southern Australian 
region this morning. Isolated shortwave fadeouts are possible 
on daylight HF circuits over the next few days.

----------------------------------------------------------
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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