[Ips-dhfpr] IPS Daily HF Prop Report - 27 June 12 issued 2329 UT on 27 Jun 2012

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/27 JUNE 2012 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (27 JUNE) 
Date   T index  Conditions    
27 Jun    48    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      Depressed by 20% during local day.
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 30% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 25% during local day.
      Depressed by 30% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

PCA Event : No event.

Predicted Monthly T index for June:  78


2. FORECAST (28 JUNE - 30 JUNE)
Date   T index  Conditions       MUFs                              
28 Jun    50    Normal           Depressed up to 30%
29 Jun    60    Normal           Depressed up to 20%    
30 Jun    65    Normal           Depressed up to 20%   

COMMENT: IPS HF Communications Warning 24 
was issued on 26 June and is current for 27-28 Jun. MUF depressions 
were observed over most of the Australian region during the last 
24 hours. The ionising solar UV flux has increased from low levels 
over the last day and is expected to trend upwards over the next 
few days. This is expected to increase the MUFs although depressions 
are likely to persist for at least the next 2 days.

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

IPS Radio and Space Services        email: asfc at ips.gov.au
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