[Ips-wgr] IPS Weekly Geo. Report (13 November 03)

[rwc]

SUBJ: IPS WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 13 NOVEMBER 2003, BY IPS RADIO AND SPACE SERVICES,
FROM THE AUSTRALIAN SPACE FORECAST CENTRE

1. SUMMARY (04 NOVEMBER - 12 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               
 04 Nov   3466 3233   31   A moderate (87nT) impulse was observed in 
                           the IPS magnetomter data at 0626UT on 04 Nov. 
 05 Nov   2111 1133    6     
 06 Nov   2111 2253   11    
 07 Nov   3322 1112    7    
 08 Nov   1122 3433   11    
 09 Nov   3234 5333   19    
 10 Nov   3334 4444   22    
 11 Nov   4445 5544   34    
 12 Nov   3334 3443   19    

*estimated from real time data

Geomagnetic activity was at mostly quiet to unsettled levels early in 
the week. Late in the UT day 8 Nov the earth entered a high speed 
coronal hole solar wind stream. Solar wind velocities increased
steadily during the following two days and remain elevated, leading to 
extended periods of active to minor storm conditions, especially at 
high latitudes. These coronal hole induced effects are likely to 
continue for several more days. 

2. FORECAST (13 NOVEMBER - 13 DECEMBER)
Disturbed Periods: 13-18 NOV, 24-28 NOV, 6-13 NOV. 

Best Quiet Periods: 19-23 NOV, 01-04 DEC. 

A number of active sunspot regions which produced major flares on their
last rotation are due to return during this period. Isolated periods of 
intense geomagnetic activity are possible following flare-induced 
shocks in the solar wind stream.

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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