[Ips-dhfpr] IPS Daily HF Prop Report - 25 August 15 issued 2350 UT on 25 Aug 2015

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/25 AUGUST 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (25 AUGUST) 
Date   T index  Conditions    
25 Aug    42    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 40% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 40% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 30% during local night.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 20% during local night.
      Depressed by 25% after local dawn.
   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
Jul      60
Aug      80
Sep      78


2. FORECAST (26 AUGUST - 28 AUGUST)
Date   T index  Conditions       MUFs                              
26 Aug    45    Normal           15 to 20% below predicted monthly 
                                 values
27 Aug    50    Normal           Depressed 15%/near predicted 
                                 monthly values    
28 Aug    40    Normal           15 to 20% below predicted monthly 
                                 values   

COMMENT: IPS HF Communications Warning 40 was issued on 24 August 
and is current for 24-26 Aug. Moderately depressed ionospheric 
support observed across all AUS/NZ regions for the last 24 hours. 
Similar conditions are expected for the next 2 days. A further 
reduction of MUFs possible for 28Aug due to possible geomagnetic 
Activity from coronal hole effects.

----------------------------------------------------------
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.

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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