[Ips-dhfpr] IPS Daily HF Prop Report - 01 June 06

[rwc]

SUBJ: IPS DAILY HF PROPAGATION REPORT
ISSUED AT 01/2330Z JUNE 2006 BY IPS RADIO AND SPACE SERVICES
FROM THE AUSTRALIAN SPACE FORECAST CENTRE
AUSTRALIAN REGION SUMMARY AND FORECAST

1. SUMMARY (01 JUNE) 
Date   T index  Conditions    
01 Jun    34    Normal-fair    

Flares: none.

MUFs:
Still about 15% above montlhy average values as coronal hole slow to take effect

PCA Event : No event.

Predicted Monthly T index for June:  15
2. FORECAST (02 JUNE - 04 JUNE)
Date   T index  Conditions       MUFs                              
02 Jun    28    Normal-fair      about 15% below predicted monthly 
                                 values 
03 Jun    22    Normal-fair      about 15% below predicted monthly 
                                 values     
04 Jun    22    Normal           Near predicted monthly values    
COMMENT: The effects of the solar coronal hole have been slower 
to appear than expected although solar wind speed is now increasing. 
The regional ionosphere is still slightly enhanced although likely 
to be suppressed to average or below critical frequencies in 
the next 2 days. Depressions unlikely to exceed 15-20%. Spread 
F is still occurring at most tropical and several mid-latitude 
stations, particularly night and pre-dawn. This is likely to 
continue and degrade night time communications at all latitudes 
over the next 2 days. Blanketing sporadic E was observed at Pt 
Moresby around dusk and a strong pre-dawn F2 layer enhancement 
at Vanimo and Pt Moresby, so the equatorial ionosphere is currently 
dynamic. 
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For an explanation of some of the terms in this report, goto
http://www.ips.gov.au, and follow links to Educational->
Gloassary on Solar Terrestrial Terms.

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