[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 01 04 26 1203UT issued 1219 UT on 01 Apr 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 01 04 26 1203UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    268.7      277.9        9.2
Darwin_(GA)                    nT    160.7      170.3        9.7
Darwin                         nT     58.5       69.1       10.6
Townsville_(GA)                nT   -623.1     -611.7       11.4
Townsville                     nT   -850.4     -839.4       11.0
Townsville_(ICSWSE/BOM)        nT    103.7      114.6       11.0
Alice_Springs_(GA)             nT     79.4       89.6       10.3
Gingin_(GA)                    nT    271.4      280.0        8.6
Canberra_(GA)                  nT   -169.3     -160.1        9.2
Hobart                         nT   -729.0     -722.9        6.1
Hobart_(ICSWSE/BOM)            nT    -22.3      -16.3        6.0

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