[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (10nT) IN MAGNETOMETER DATA 20 03 26 0401UT issued 0419 UT on 20 Mar 2026 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (10nT) IN MAGNETOMETER DATA 20 03 26 0401UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    308.1      317.7        9.6
Darwin_(GA)                    nT    234.0      242.3        8.4
Townsville_(GA)                nT   -581.3     -571.7        9.7
Townsville                     nT   -797.8     -787.7       10.1
Townsville_(ICSWSE/BOM)        nT    133.7      143.7       10.0
Learmonth_(GA)                 nT    355.6      368.1       12.5
Learmonth_(SWS)                nT   -933.7     -921.0       12.7
Canberra_(GA)                  nT   -177.0     -165.3       11.7
Hobart                         nT   -723.8     -710.3       13.4

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