[Ips-wgr] ASWFC Weekly Geo. Report (16 May 24) issued 0148 UT on 16 May 2024 [SEC=OFFICIAL]

[rwc]

SUBJ: ASWFC WEEKLY GEOPHYSICAL REPORT 
ISSUED ON 16 MAY 2024
FROM THE AUSTRALIAN SPACE WEATHER FORECASTING CENTRE
ASWAS SCALE DESCRIPTION: https://bit.ly/3lmaMBx

1. SUMMARY (07 MAY - 15 MAY)
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               
 07 May   2211 1211    4  
 08 May   2122 1101    4  
 09 May   1111 0021    2  
 10 May   2322 2677   50  In the BOM magnetometer data for 10 
                          May, a moderate (51nT) impulse was 
                          observed at 1706UT.
 11 May   7678 8655  127  
 12 May   5624 1234   26  
 13 May   3433 2212   12  
 14 May   1222 1111    4  
 15 May   1122 2022    5  

*estimated from real time data

NOTE: Indices may have been generated from data obtained in 
cooperation with the following organisations: Geoscience Australia, 
University of Newcastle Space Physics Group, Australian Government 
Antarctic Division and International Center for Space Weather 
Science and Education, Japan.

Planetary (Kp) G5 storm observed over 10-11 May reaching G4 in
the Australian (KAus) region geomagnetic field. A strong shock in the 
solar wind was observed 10/1637UT and extreme geomagnetic storm
conditions were then observed. The estimated planetary A index (Ap)
reached 273 on 11-May and the Australian region Dst fell to -514 on 
this day. The geomagnetic activity was induced by several CMEs that 
left the Sun over 8-9 May.

2. FORECAST (16 MAY - 15 JUNE)
Disturbed Periods: 
16 May, 9 Jun.

Best Quiet Periods: 
 19-22 May,  25-26 May,  31 May,  3-8 Jun,  10-11 Jun.

3. FORECAST FOR HIGH RESOLUTION AEROMAGNETIC SURVEYS
Northern Australian Regions:
 Disturbed Periods: No recurrent patterns.
 Best Quiet Periods: 16-26 May,  29 May to 5 Jun.

Central Australian Regions:
 Disturbed Periods: No recurrent patterns.
 Best Quiet Periods: 16-26 May,  29 May to 2 Jun,  10-11 Jun.

Southern Australian Regions:
 Disturbed Periods: 03 Jun.
 Best Quiet Periods: 16-25 May,  29 May,  31 May to 2 Jun, 10-11 Jun.


Pc3 pulsations are high frequency (10-45 second period) variations 
of the Earths magnetic field. Daily pc3-indices are the daily sum of 
20 minute pc3-indices for that station and have been shown to be well 
correlated with rejection of high resolution aeromagnetic survey 
flight-line data.

PLEASE NOTE:
Geomagnetic activity can frequently be determined by short timescale 
solar events that cannot be forecast a week in advance, particularly
at solar maximum.

Australian Space Weather Forecasting Centre
Bureau of Meteorology
ASWFC at bom.gov.au
www.bom.gov.au | www.sws.bom.gov.au