[Ips-dhfpr] IPS Daily HF Prop Report - 23 July 15 issued 2354 UT on 23 Jul 2015

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SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/23 JULY 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (23 JULY) 
Date   T index  Conditions    
23 Jul    49    Normal         

Flares: none.

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Depressed by 15% during local day/night.
      Depressed by 25% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day and after
      local dawn.
      Depressed by 40% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
     Extended periods of disturbance.

PCA Event : No event.

Monthly T index:
Month  T index
Jun      70
Jul      84
Aug      82


2. FORECAST (24 JULY - 26 JULY)
Date   T index  Conditions       MUFs                              
24 Jul    55    Normal           10 to 30% below predicted monthly 
                                 values
25 Jul    55    Normal           10 to 30% below predicted monthly 
                                 values    
26 Jul    55    Normal           10 to 30% below predicted monthly 
                                 values   

COMMENT: IPS HF Communications Warning 26 was issued on 23 July 
and is current for 24-26 Jul. IPS HF Warning 15/26 has been issued 
as a continuation of HF Warning 15/25. MUF depressions of up 
to 30% 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. Disturbed conditions also observed Antarctic 
region due to elevated geomagnetic activity. Further disturbance 
expected days one and two of the forecast period.

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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.

Space Weather Services              email: asfc at ips.gov.au
Bureau of Meteorology
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