[Ips-whfpr] IPS Weekly Prop. Report (26 August 15) issued 0137 UT on 26 Aug 2015

[rwc]

SUBJ: IPS WEEKLY HF PROPAGATION REPORT
ISSUED ON 26 AUGUST 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (19 AUGUST - 25 AUGUST)
Date   T index   Conditions        
19 Aug   39      Normal-fair       
MUFS:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Depressed by 45% during local night.
      Depressed by 35% after local dawn.
   Niue Island Region:
      Depressed by 35% during local day.
      Depressed by 35% during local night.
      Depressed by 35% after local dawn.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 20% during local day.
      Depressed by 35% during local night.
      Depressed by 25% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 25% over the UT day.

20 Aug   37      Normal-fair       
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 40% during local night.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 40% during local night.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 30% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

21 Aug   34      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 50% during local night.
      Depressed by 25% after local dawn.
   Niue Island Region:
      Depressed by 25% during local day.
      Depressed by 50% 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 Region:
      Depressed by 25% during local day.
      Depressed by 25% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 20% over the UT day.

22 Aug   40      Normal            
MUFS:
   Cocos Island Region:
      Depressed by 25% during local day.
      Depressed by 40% during local night.
   Niue Island Region:
      Depressed by 30% during local day.
      Depressed by 45% during local night.
      Depressed by 30% after local dawn.
   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 25% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values over the UT day.

23 Aug   54      Normal            
MUFS:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 45% during local night.
      Depressed by 20% after local dawn.
   Niue Island Region:
      Depressed by 15% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Northern Australian Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Southern Australian Region:
      Depressed by 20% during local day.
      Near predicted monthly values during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

24 Aug   41      Normal            
MUFS:
   Cocos Island Region:
      Depressed by 15% during local day.
      Depressed by 45% during local night.
   Niue Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Northern Australian Region:
      Depressed by 20% during local day.
      Depressed by 35% during local night.
      Depressed by 20% after local dawn.
   Southern Australian Region:
      Depressed by 25% during local day.
      Depressed by 30% during local night.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Depressed by 15% over the UT day.

25 Aug   42      Normal            
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.

Predicted Monthly T index for August:  80

2. FORECAST (26 AUGUST - 01 SEPTEMBER) 
MUFS: MUFs 10-30% below near predicted monthly values for the
forecast period.

Propagation conditions: Mostly Normal with SWFs probable early 
in the week.

T index: 80
IPS HF Communications Warning 40 was issued on 24 August and 
is current for 24-26 Aug. IPS SWF HF Communications Warning 41 
was issued on 26 August and is current for 26-27 Aug.

3. OUTLOOK (02 SEPTEMBER - 02 OCTOBER)
Degraded HF propagation conditions possible:
3 Sep,  15 Sep,  19 Sep,  23-24 Sep,  30 Sep

PLEASE NOTE:
Space weather conditions can frequently be determined by short 
timescale events that cannot be forecast a week in advance,
particularly at solar maximum.

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
PO Box 1386                         WWW: http://www.ips.gov.au
Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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