[Ips-dhfpr] IPS Daily HF Prop Report - 22 September 15 issued 2330 UT on 22 Sep 2015

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/22 SEPTEMBER 2015 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (22 SEPTEMBER) 
Date   T index  Conditions    
22 Sep    32    Fair           

Flares: none.

MUFs:
   Cocos Island Region:
      Near predicted monthly values during local day.
      Depressed by 30% during local night.
   Niue Island Region:
      Depressed by 20% during local day.
      Depressed by 25% during local night.
      No data after 12UT.
   Northern Australian Region:
      Depressed by 25% during local day and after local dawn.
      Depressed by 15% during local night.
   Southern Australian Region:
      Depressed by 30% during local day.
      Depressed by 25% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Extended periods of disturbance over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Aug      46
Sep      75
Oct      73


2. FORECAST (23 SEPTEMBER - 25 SEPTEMBER)
Date   T index  Conditions       MUFs                              
23 Sep    35    Fair             15 to 20% below predicted monthly 
                                 values
24 Sep    35    Fair             15 to 20% below predicted monthly 
                                 values    
25 Sep    35    Fair             15 to 20% below predicted monthly 
                                 values   

COMMENT: IPS HF Communications Warning 57 was issued on 21 September 
and is current for 22-24 Sep. Degraded HF conditions were observed 
during 22 September over the Australasian region due to low levels 
of ionising radiation and occasional elevated geomagnetic activity. 
Similar HF conditions are expected for the next few days.

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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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Haymarket NSW 1240  AUSTRALIA       FTP: ftp://ftp.ips.gov.au 
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