[Ips-dhfpr] SWS Daily HF Prop Report - 14 June 22 issued 2330 UT on 14 Jun 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/14 JUNE 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (14 JUNE) 
Date   T index  Conditions    
14 Jun    64    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Enhanced by 30% during local day.
      Near predicted monthly values during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 15% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 15% 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
May      79
Jun      57
Jul      59


2. FORECAST (15 JUNE - 17 JUNE)
Date   T index  Conditions       MUFs                              
15 Jun    40    Fair-poor        Near predicted monthly values/depressed 
                                 to 20%
16 Jun    55    Normal-fair      Near predicted monthly values    
17 Jun    65    Normal           Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 47 was issued on 13 
June and is current for 13-15 Jun. SWS Preliminary HF Communications 
Warning 48 was issued on 14 June and is current for 14-16 Jun. 
Maximum usable frequencies (MUFs) on UT day 14-Jun were mostly 
near monthly predicted values. Spread-F was observed at Hobart 
during local night hours. Degraded conditions are expected on 
15-Jun due to the anticipated arrival of a CME first observed 
on 13-Jun, with depressions at times to 20% below predicted monthly 
values at mid to high latitudes. MUFs are expected to return 
to near monthly predicted values over 16-17 Jun.

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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.

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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