[Ips-dhfpr] IPS Daily HF Prop Report - 26 January 04

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 26/2330Z JANUARY 2004 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (26 JANUARY) 
Date   T index  Conditions    
26 Jan   -11    Fair-normal    

Flares: none.

MUFs:
   Equatorial PNG Region:
      Near predicted monthly values during local day,
      Depressed by 25% during local night.
   Northern Australian Region:
      Depressed by 35% during local day,
      Depressed by 25% during local night.
   Southern Australian and New Zealand Region:
      Depressed by 35% during local day,
      Depressed by 20% during local night.
   Antarctic Region (Casey/Scott Base):
      Near predicted monthly values over the UT day.


PCA Event : No event.

Predicted Monthly T index for January:  56
2. FORECAST (27 JANUARY - 29 JANUARY)
Date   T index  Conditions       MUFs                              
27 Jan    25    Normal-fair      Depressed 10-20% S Aus/NZ regions, 
                                 otherwise near predicted monthly 
                                 values. 
28 Jan    30    Normal-fair      Depressed 5-15% S Aus/NZ/Antarctic 
                                 regions, otherwise near predicted 
                                 monthly values.     
29 Jan    20    Normal-fair      Depressed 10-20% S Aus/NZ/Antarctic 
                                 regions, otherwise near predicted 
                                 monthly values.    
COMMENT: IPS HF Communications Warning 10 was issued on 25 January 
and is current for interval 26-27 January. Spread-F conditions 
observed at high latitudes. Evening spread-F observed in S Aus/NZ 
regions, also sporadic-E around local dawn today. Post-dawn depressions 
observed yesterday persisted throughout the local day. Widespread 
minor depressions observed again today at mid to high latitudes, 
but showing signs of recovery at most locations. Expect gradually 
improving HF conditions today Equatorial/N Aus region, with continuing 
mid-high latitude depressions today and tomorrow. Possible further 
disturbance at high latitudes tomorrow due to a mild coronal 
hole wind stream effect. 

IPS Radio and Space Services      | email: asfc at ips.gov.au
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Haymarket NSW 1240  AUSTRALIA     | FTP: ftp://ftp.ips.gov.au 
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