[Ips-dhfpr] IPS Daily HF Prop Report - 20 June 15 issued 2359 UT on 20 Jun 2015

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SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 JUNE 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (20 JUNE) 
Date   T index  Conditions    
20 Jun    62    Normal-fair    

Flares    Max     Fadeout    Freq.  Sectors
  M1.0    0648UT  probable   lower  Mid East/Indian

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 20% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 35% during local night.
   Southern Australian and New Zealand Region:
      Near predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

PCA Event : 10MeV Proton/PCA Event Began at 1105UT 18/06, Ended at 0155UT 19/06

Monthly T index:
Month  T index
May      83
Jun      86
Jul      84


2. FORECAST (21 JUNE - 23 JUNE)
Date   T index  Conditions       MUFs                              
21 Jun    65    Normal-fair      Depressed 15%/near predicted 
                                 monthly values
22 Jun    55    Fair             15 to 20% below predicted monthly 
                                 values    
23 Jun    55    Normal-fair      15 to 20% below predicted monthly 
                                 values   

COMMENT: IPS SWF HF Communications Warning 16 was issued on 20 
June and is current for 20-21 Jun. IPS Preliminary HF Communications 
Warning 17 was issued on 20 June and is current for 21-24 Jun. 
Mostly normal to fair conditions are expected for 21 June with 
depressions during local night hours and into 22 June. Spread-F 
conditions were observed at some stations possibly resulting 
in intermittent degraded COMMS. Degraded COMMS are possible during 
22-23 June with the anticipated increase in geomagnetic activity.

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For an explanation of some of the terms in this report, go to
http://www.ips.gov.au, and follow links to Educational->
Glossary on Solar Terrestrial Terms.

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