[Ips-dhfpr] IPS Daily HF Prop Report - 21 August 14 issued 2330 UT on 21 Aug 2014

[Regional Warning Centre]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 2330UT/21 AUGUST 2014 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (21 AUGUST) 
Date   T index  Conditions    
21 Aug    71    Normal         

Flares    Max     Fadeout    Freq.  Sectors
  M3.4    1332UT  possible   lower  European

MUFs:
   Cocos Island Region:
      Depressed 25-35% 03, 20-23 UT. Enhanced 25-50%
      07-13 UT. Near predicted monthly values at
      other times.
   Niue Island Region:
      Depressed 15-20% 01-15 UT. Near predicted
      monthly values at other times.
   Northern Australian Region:
      Depressed 20-30% 02, 11, 15, 18 UT, depressed
      40-50% 12-14, 16 UT at Darwin. Depressed 25-40%
      11-14 UT at Townsville. Near predicted monthly
      values at other times.
   Southern Australian and New Zealand Region:
      Mostly near predicted monthly values. Some
      depressions to 20% 00-02, 11-15, 22-23 UT.
   Antarctic Region (Casey/Scott Base/Davis/Mawson):
      Near predicted monthly values to 30% depressed.

PCA Event : No event.

Monthly T index:
Month  T index
Jul      68
Aug      91
Sep      87


2. FORECAST (22 AUGUST - 24 AUGUST)
Date   T index  Conditions       MUFs                              
22 Aug    70    Normal           Near predicted monthly values 
                                 to 20% depressed.
23 Aug    65    Normal           Near predicted monthly values 
                                 to 20% depressed.    
24 Aug    65    Normal           Near predicted monthly values 
                                 to 20% depressed.   

COMMENT: IPS SWF HF Communications Warning 41 was issued on 21 
August and is current for 22-24 Aug. Spread F observed at Hobart 
12-20 UT, Perth 12-22 UT and Townsville 12-17 UT. Chance of sudden 
ionospheric disturbance (SWF) 22-24 Aug.

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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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