[ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 16 11 25 0213UT issued 0228 UT on 16 Nov 2025 [SEC=OFFICIAL]

[Australian Space Weather Forecasting Centre]

WEAK SUDDEN IMPULSE DETECTED (9nT) IN MAGNETOMETER DATA 16 11 25 0213UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    241.1      248.3        7.2
Darwin_(GA)                    nT    169.4      178.4        9.0
Darwin                         nT     61.4       70.9        9.5
Townsville_(GA)                nT   -605.9     -593.7       12.2
Townsville                     nT   -701.2     -688.0       13.2
Townsville_(ICSWSE/BOM)        nT    274.7      287.7       13.0
Learmonth_(GA)                 nT    336.0      343.8        7.8
Learmonth_(SWS)                nT   -936.1     -928.3        7.8
Canberra_(GA)                  nT   -209.0     -200.9        8.0
Hobart                         nT   -438.8     -432.0        6.9

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