[Ips-dhfpr] SWS Daily HF Prop Report - 15 June 22 issued 2330 UT on 15 Jun 2022 [SEC=OFFICIAL]

[Regional Warning Centre]

SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/15 JUNE 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (15 JUNE) 
Date   T index  Conditions    
15 Jun    69    Fair-normal    

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Enhanced by 20% during local night.
   Niue Island Region:
      Enhanced by 20-25%.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% 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 (16 JUNE - 18 JUNE)
Date   T index  Conditions       MUFs                              
16 Jun    65    Normal-fair      Near predicted monthly values
17 Jun    65    Normal           Near predicted monthly values    
18 Jun    65    Normal           Near predicted monthly values   

COMMENT: 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 15-Jun were mostly near monthly predicted values. 
Spread-F was observed at Hobart and Canberra during local night 
hours. Due to weak geomagnetic activity induced from the arrival 
of a recent CME, no significant ionospheric depressions were 
observed after local dawn this morning. MUFs are now expected to 
to be mostly near monthly predicted values over 16-18 Jun, with
mild degradations possible during local night hours.

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