[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (11nT) IN MAGNETOMETER DATA 10 11 25 1332UT issued 1349 UT on 10 Nov 2025 [SEC=OFFICIAL]

Tue Nov 11 00:49:26 AEDT 2025

WEAK SUDDEN IMPULSE DETECTED (11nT) IN MAGNETOMETER DATA 10 11 25 1332UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    240.5      245.0        4.5
Darwin_(GA)                    nT    149.0      156.9        7.8
Darwin                         nT     45.4       53.9        8.5
Townsville_(GA)                nT   -624.9     -612.5       12.3
Townsville                     nT   -724.5     -712.5       12.1
Townsville_(ICSWSE/BOM)        nT    -93.0      -81.0       12.0
Learmonth_(GA)                 nT    319.9      331.0       11.1
Learmonth_(SWS)                nT   -951.8     -940.9       10.9
Alice_Springs_(GA)             nT     73.4       84.4       11.0
Gingin_(GA)                    nT    258.0      265.5        7.5
Canberra_(GA)                  nT   -158.0     -141.7       16.2
Hobart                         nT   -389.6     -370.4       19.2
Hobart_(ICSWSE/BOM)            nT    -16.1        3.1       19.2

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