[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (12nT) IN MAGNETOMETER DATA 07 11 25 1133UT issued 1149 UT on 07 Nov 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (12nT) IN MAGNETOMETER DATA 07 11 25 1133UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    204.7      213.9        9.1
Darwin_(GA)                    nT    111.6      121.9       10.3
Darwin                         nT      7.4       18.2       10.8
Townsville_(GA)                nT   -660.2     -647.6       12.6
Townsville                     nT   -761.3     -748.8       12.5
Townsville_(ICSWSE/BOM)        nT   -135.8     -123.6       12.2
Learmonth_(GA)                 nT    285.2      303.2       18.0
Learmonth_(SWS)                nT   -983.8     -965.9       17.9
Alice_Springs_(GA)             nT     38.8       52.1       13.3
Gingin_(GA)                    nT    229.5      244.3       14.8
Canberra_(GA)                  nT   -190.0     -177.4       12.6
Hobart                         nT   -440.1     -428.1       12.1
Hobart_(ICSWSE/BOM)            nT    -32.2      -20.7       11.5

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