[Ips-dhfpr] IPS Daily HF Prop Report - 01 October 15 issued 2330 UT on 01 Oct 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/01 OCTOBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 OCTOBER) 
Date   T index  Conditions    
01 Oct    59    Mildly depressed         

Flares    Max     Fadeout    Freq.  Sectors
  M4.5   1310 UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Enhanced by 20% during local day.
      Enhanced by 50% during local night.
   Niue Island Region:
      Depressed by 15% during local day.
      Depressed by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values.
   Southern Australian Region:
      Mostly near predicted monthly values.
      Depressed by 20% after local dawn.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 15% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      35
Oct      70
Nov      68


2. FORECAST (02 OCTOBER - 04 OCTOBER)
Date   T index  Conditions             MUFs                              
02 Oct    50    Moderately depressed   0 to 20% below predicted monthly 
                                       values
03 Oct    45    Moderately depressed   0 to 20% below predicted monthly 
                                       values    
04 Oct    45    Moderately depressed   0 to 20% below predicted monthly 
                                       values   

COMMENT: Conditions for HF radio propagation were mixed throughout 
the Australian region during 01 Oct UT. The T index was 125 for 
Cocos Island and 131 for Darwin (both enhanced). However, the 
T index for Niue was only 22 (depressed). T indices for the mid-latitude 
stations were mostly in the range of about 50 to 73 (mildly depressed). 
Minor geomagnetic storms are expected during 02-04 Oct. This 
may lead to depressed conditions for HF radio wave propagation.

----------------------------------------------------------
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 
tel: +61 2 9213 8010                fax: +61 2 9213 8060 

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