[Ips-dhfpr] IPS Daily HF Prop Report - 20 June 13 issued 2330 UT on 20 Jun 2013

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/20 JUNE 2013 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    83    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      5% to 20% above predicted monthly values during local day.
      Depressed by 20% during local night.
   Niue Island Region:
      10% to 30% above predicted monthly values during local day.
   Northern Australian Region:
      10 to 20% above predicted monthly values.
   Southern Australian and New Zealand Region:
      10 to 20% above predicted monthly values.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

PCA Event : 10Mev Proton/PCA Event Began 23 05 2013 1630UT and is in progress

Predicted Monthly T index for June:  67


2. FORECAST (21 JUNE - 23 JUNE)
Date   T index  Conditions       MUFs                              
21 Jun    85    Normal-fair      Near to 15% above predicted 
                                 monthly values
22 Jun    85    Normal           Near to 15% above predicted 
                                 monthly values    
23 Jun    85    Normal           Near to 15% above predicted 
                                 monthly values   

COMMENT: Ionospheric support for HF propagation was near to 15% 
above monthly predicted values during June 20. The 10.7 cm solar 
flux is forecast to continue to increase during the next 2-3 
days and the outlook is for enhanced ionospheric support. However, 
a high speed solar wind stream has arrived at Earth and a minor 
geomagnetic storm may occur. There is a small chance of negative 
storm effects depressing ionospheric support during the next 
48 hours.

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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.

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