[Ips-dhfpr] IPS Daily HF Prop Report - 21 August 02

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 21/2330Z AUGUST 2002 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   153    Normal         

Flares    Max     Fadeout    Freq.  Sectors
 X1/1B    0534UT  probable   all    E. Asia/Aust.

MUFs:
   Equatorial PNG Region:
      Normal to enhanced.
   Australian and New Zealand Region:
      Normal to enhanced.
   Antarctic Region (Casey/Scott Base):
      Depressed 15-30% at times to near predicted monthly
      values.


PCA Event : No event.

Predicted Monthly T index for August: 102
2. FORECAST (22 AUGUST - 24 AUGUST)
Date   T index  Conditions       MUFs                              
22 Aug   150    Normal-Fair      about 15% above predicted monthly 
                                 values 
23 Aug   150    Normal           about 15% above predicted monthly 
                                 values     
24 Aug   135    Normal           about 10% above predicted monthly
                                 values
COMMENT: IPS HF Communications Warning 41 was issued on 22 August 
and is current for interval 22-24 August (SWFs) . HF conditions 
were degraded at high latitudes for 21 August due to the sustained 
period of southward IMF and increased geomagnetic activity in 
that region. HF conditions are likely to be mildly degraded for 
high latitudes for 22 August, while low-mid latitudes should 
be mostly normal. SWF's possible. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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