[Ips-wgr] IPS Weekly Geo. Report (27 November 03)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 27 NOVEMBER 2003, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (18 NOVEMBER - 26 NOVEMBER)
K indices are in UT (0-24). For conversion to local time:
AEST = UT + 10 hours; ACST = UT + 9.5 hours; AWST = UT + 8 hours
        Australian Region*              
 Date     K-INDICES    A               
 18 Nov   3333 4333   16     
 19 Nov   2222 2323    9     
 20 Nov   2366 6777   85    
 21 Nov   5664 2236   43    
 22 Nov   3223 4544   21    
 23 Nov   3342 4333   17    
 24 Nov   2222 4323   11    
 25 Nov   4333 3422   16    
 26 Nov   2212 2223    7    

*estimated from real time data

The week started with geomagnetic activity at unsettled 
to active levels due to coronal hole effect. Severe storm 
was observed on 20 November due to the arrival of a CME. 
The geomagnetic activity then declined to major storm on
21, minor storm on 22 and then quiet to active levels on 
23 November. The geomagnetic activity remained at quiet 
to active levels for the next two days due to the effect 
of a geoeffectively located coronal hole. The effect of 
this coronal hole continued to decline on 26 November as 
the geomagnetic activity gradually declined to quiet to 
unsettled levels on this day. This decline in geomagnetic 
activity is continuing at the time of this report. 

2. FORECAST (27 NOVEMBER - 27 DECEMBER)
Disturbed Periods: 06 to 15 December, 17, 18 and 22 December

Best Quiet Periods: 27 Novebmer to 05 December, 16 December,
			23 to 27 December


PLEASE NOTE:  
At this time of the solar cycle, space weather conditions 
are frequently determined by short timescale events, not 
able to be forecasted a week in advance. 

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