[Ips-dhfpr] IPS Daily HF Prop Report - 26 October 13 issued 2343 UT on 26 Oct 2013

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/26 OCTOBER 2013 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 OCTOBER) 
Date   T index  Conditions    
26 Oct   115    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M2.3    0607UT  possible   lower  Mid East/Indian
  M1.2    0927UT  possible   lower  Mid East/Indian
  M1.5    0938UT  possible   lower  Mid East/Indian
  M1.8    1118UT  possible   lower  European
  M3.1    1927UT  possible   lower  East Pacific/
                                    North American
  M1.0    1955UT  possible   lower  East Pacific/
                                    North American

MUFs:
   Cocos Island Region:
      No data available.
   Niue Island Region:
      Enhanced by 30% during local day.
      Enhanced by 25% during local night.
   Northern Australian Region:
      Near predicted monthly values during local day.
      Enhanced by 30% during local night.
   Southern Australian and New Zealand Region:
      Enhanced by 15% during local day.
      Enhanced by 20% during local night.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Enhanced by 25% over the UT day.

PCA Event : No event.

Monthly T index:
Month  T index
Sep      68
Oct      72
Nov      70


2. FORECAST (27 OCTOBER - 29 OCTOBER)
Date   T index  Conditions       MUFs                              
27 Oct   100    Normal           Near to 15% above predicted 
                                 monthly values
28 Oct    90    Normal           Near predicted monthly values    
29 Oct    90    Normal           Near predicted monthly values   

COMMENT: IPS SWF HF Communications Warning 30 was issued on 25 
October and is current for 26-28 Oct. HF conditions are still 
enhanced due to high levels of ionising EUV flux from multiple 
sunspot regions. Expected geomagnetic activity 28-29 Oct may 
reduce the maximum useable frequency from the currently enhanced 
levels. MUFs expected to be near predicted monthly values with 
a chance of depressed periods for Southern AUS/NZ regions 28-29 
Oct. Short wave fadeouts possible next two days with a reasonable 
chance of isolated M and X flares from solar active regions.

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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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