[Ips-dhfpr] IPS Daily HF Prop Report - 30 July 15 issued 2357 UT on 30 Jul 2015

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/30 JULY 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (30 JULY) 
Date   T index  Conditions    
30 Jul    49    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day.
      Depressed 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
Jun      70
Jul      84
Aug      82


2. FORECAST (31 JULY - 02 AUGUST)
Date   T index  Conditions       MUFs                              
31 Jul    55    Normal-fair      Depressed 15-25%/near predicted 
                                 monthly values
01 Aug    56    Normal-fair      Depressed 15-25%/near predicted 
                                 monthly values    
02 Aug    56    Normal           Depressed 15-25%/near predicted 
                                 monthly values   

COMMENT: IPS HF Communications Warning 28 was issued on 30 July 
and is current for 30 Jul to 1 Aug. MUF depressions of up to 
25% have been seen across much of the Australasian region over 
the last 24 hours. These conditions are due to low levels of 
ionising solar flux. Minor to moderate MUF depressions and degradations 
in HF conditions may be expected on 1 and 2 August due to expected 
mild rise in geomagnetic activity on these days.

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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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Bureau of Meteorology
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