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Top 50 geomagnetic storms of 1999

On this page you will find an overview of the strongest geomagnetic storms of 1999 together with links to more information in our archive. Storms are ranked by the Disturbance storm-time index (Dst) that is designed to measure the magnetic signature of magnetospheric currents observed in the equatorial regions. The Dst index is provided by the World Data Center for geomagnetism in Kyoto.

Dst Ap Kp maxSpeedIMF BtIMF Bz
11999/10/22-237nT918711.4km/sec37.09nT-31.49nT
21999/09/22-173nT508620.9km/sec32.42nT-22.64nT
31999/09/23-155nT286+583.1km/sec17.32nT-14.26nT
41999/02/18-123nT807-692.0km/sec29.12nT-25.55nT
51999/01/13-112nT407444.4km/sec19.44nT-16.93nT
61999/11/13-106nT436+499.6km/sec16.24nT-13.57nT
71999/02/19-106nT406-596.5km/sec9.25nT-7.47nT
81999/01/14-101nT295+579.7km/sec17.56nT-16.57nT
91999/03/01-95nT416-565.0km/sec23.26nT-19.16nT
101999/04/17-91nT477+438.4km/sec24.83nT-14.63nT
111999/02/28-87nT175+413.4km/sec16.91nT-15.15nT
121999/11/14-87nT113467.0km/sec10.21nT-8.88nT
131999/12/13-85nT266-614.4km/sec14.98nT-11.27nT
141999/03/10-81nT346+475.6km/sec12.93nT-12.29nT
151999/03/02-80nT226-576.9km/sec11.51nT-11.10nT
161999/11/16-79nT144+-16.20nT-13.07nT
171999/10/23-76nT325+706.6km/sec9.59nT-7.58nT
181999/09/13-74nT466656.0km/sec11.08nT-9.47nT
191999/11/08-73nT295-654.0km/sec10.51nT-8.92nT
201999/10/24-71nT265-638.4km/sec8.68nT-6.23nT
211999/09/16-67nT316665.5km/sec8.38nT-7.57nT
221999/11/07-67nT315599.9km/sec19.09nT-16.48nT
231999/10/10-67nT336-673.2km/sec17.84nT-14.09nT
241999/10/15-67nT315802.7km/sec8.62nT-7.71nT
251999/10/28-66nT215+447.3km/sec12.65nT-10.92nT
261999/08/23-66nT316-482.2km/sec15.83nT-11.50nT
271999/09/14-65nT215-683.2km/sec10.39nT-8.03nT
281999/09/27-64nT436-676.9km/sec13.75nT-11.09nT
291999/09/30-61nT265+595.0km/sec7.39nT-6.92nT
301999/10/27-61nT195-420.2km/sec8.24nT-7.33nT
311999/10/12-60nT465+651.3km/sec9.46nT-7.78nT
321999/10/29-59nT93-425.7km/sec10.53nT-7.68nT
331999/09/12-59nT316631.1km/sec15.70nT-12.45nT
341999/02/20-58nT32+511.2km/sec6.84nT-5.27nT
351999/03/07-57nT225-512.6km/sec9.10nT-8.36nT
361999/10/13-57nT235-654.7km/sec8.82nT-7.38nT
371999/11/09-57nT285-675.5km/sec8.46nT-7.43nT
381999/01/15-56nT205-618.5km/sec9.97nT-8.90nT
391999/03/29-56nT286-560.2km/sec15.53nT-12.32nT
401999/08/22-56nT124+474.5km/sec9.83nT-9.63nT
411999/08/20-56nT366-708.6km/sec7.70nT-7.49nT
421999/11/11-55nT265-724.8km/sec8.52nT-7.42nT
431999/08/24-55nT296-574.2km/sec13.66nT-12.12nT
441999/10/17-54nT215-621.3km/sec6.06nT-5.47nT
451999/07/31-53nT285+663.2km/sec10.76nT-8.56nT
461999/10/25-53nT164-630.4km/sec5.85nT-5.66nT
471999/10/11-52nT295661.0km/sec9.38nT-8.13nT
481999/03/04-52nT305596.2km/sec12.08nT-10.68nT
491999/01/23-52nT215711.1km/sec19.43nT-8.22nT
501999/09/15-51nT276-719.0km/sec16.49nT-13.70nT
© Potsdam - CC BY 4.0 - Matzka, J., Stolle, C., Yamazaki, Y., Bronkalla, O. and Morschhauser, A., 2021. - ©WDC for Geomagnetism, Kyoto
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