[Ips-dhfpr] SWS Daily HF Prop Report - 11 February 22 issued 2331 UT on 11 Feb 2022

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/11 FEBRUARY 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (11 FEBRUARY) 
Date   T index  Conditions    
11 Feb    31    Normal-fair    

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Enhanced by 25% after local dawn.
   Niue Island Region:
      Enhanced by 15% during local day.
      Near predicted monthly values during local night.
      Enhanced by 25% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Jan      46
Feb      38
Mar      41


2. FORECAST (12 FEBRUARY - 14 FEBRUARY)
Date   T index  Conditions       MUFs                              
12 Feb    40    Fair             Near predicted monthly values/depressed 
                                 10 to 20%
13 Feb    45    Normal-fair      Near predicted monthly values/depressed 
                                 10 to 15%    
14 Feb    50    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 17 was issued on 9 
February and is current for 10-12 Feb. Frequencies of ionospheric 
support in the Australian region were mostly mildly depressed 
during the local day yesterday. Similar conditions are expected 
for 12 Feb, in particular for the southern Australian region 
with frequency depressions of 15-20% after local dawn then recovering, 
which can be expected over the next two days. Northern Australian 
region ionospheric frequencies are expected to be near to 15% 
enhanced.

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