From aswfc at bom.gov.au  Thu Jul  2 00:58:23 2026
From: aswfc at bom.gov.au (Australian Space Weather Forecasting Centre)
Date: Wed, 01 Jul 2026 14:58:23 +0000
Subject: [ips-si-alert] WEAK SUDDEN IMPULSE DETECTED (11nT) IN MAGNETOMETER
 DATA 01 07 26 1441UT issued 1458 UT on 01 Jul 2026 [SEC=OFFICIAL]
Message-ID: <6a452b0f.kGq62V9RQ59jDG6X%aswfc@bom.gov.au>

WEAK SUDDEN IMPULSE DETECTED (11nT) IN MAGNETOMETER DATA 01 07 26 1441UT
               Mean Magnetometer Parameters Pre/Post Impulse:
                                     Pre        Post       Pre/Post
Magnetometer Station          Unit   Impulse    Impulse    Change
Cocos_Island_(GA/BOM/ETH)      nT    276.2      285.2        9.0
Darwin_(GA)                    nT    162.6      173.2       10.6
Townsville_(GA)                nT   -628.4     -615.8       12.6
Townsville                     nT   -809.3     -796.7       12.7
Townsville_(ICSWSE/BOM)        nT    -54.1      -41.5       12.6
Learmonth_(GA)                 nT    343.5      356.5       13.0
Learmonth_(SWS)                nT   -959.2     -946.2       13.0
Canberra_(GA)                  nT   -175.1     -163.9       11.2
Hobart                         nT   -360.7     -350.4       10.3

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