[Ips-dhfpr] SWS Daily HF Prop Report - 13 June 22 issued 2331 UT on 13 Jun 2022 [SEC=OFFICIAL]

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SUBJ: SWS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/13 JUNE 2022 BY Space Weather Services
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (13 JUNE) 
Date   T index  Conditions    
13 Jun    70    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M3.4    0407UT  possible   lower  E. Asia/Aust.

MUFs:
   Cocos Island Region:
      Mostly near predicted monthly values.
   Niue Island Region:
      Enhanced by 20% during local day.
      Near predicted monthly values during local night.
      Enhanced by 20% after local dawn.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 20% 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 (14 JUNE - 16 JUNE)
Date   T index  Conditions       MUFs                              
14 Jun    75    Normal           Near to 25% above predicted 
                                 monthly values
15 Jun    40    Fair-poor        Near predicted monthly values 
                                 to 20% depressed    
16 Jun    55    Normal-fair      Near predicted monthly values   

COMMENT: SWS SWF HF Communications Warning 47 was issued on 13 
June and is current for 13-15 Jun. Maximum usable frequencies 
(MUFs) on UT day 13 Jun were mostly near monthly predicted values. 
Spread F was observed during local night hours at mid-latitude 
sites. MUFs are expected to be near monthly predicted values 
to mildly enhanced on 14 Jun. The expected CME impact on 15 Jun 
is likely to degrade communications into 16 Jun with depressions 
at times to 20% below predicted monthly values at mid to high 
latitudes.

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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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