[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (11nT) IN MAGNETOMETER DATA 12 07 26 1402UT issued 1419 UT on 12 Jul 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (11nT) IN MAGNETOMETER DATA 12 07 26 1402UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    233.3      243.4       10.1
Darwin_(GA)                    nT    125.6      136.3       10.7
Townsville_(GA)                nT   -658.9     -647.5       11.4
Townsville                     nT   -844.2     -832.6       11.5
Townsville_(ICSWSE/BOM)        nT    -81.2      -69.9       11.3
Learmonth_(GA)                 nT    305.9      320.1       14.2
Learmonth_(SWS)                nT   -995.4     -981.1       14.3
Canberra_(GA)                  nT   -203.1     -192.8       10.4
Hobart                         nT   -389.5     -377.8       11.6

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