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Geomagnetic storm on 28 May 2017 (G3)
Max Kp7oG3
Ap47No. 4 in 2017
Consecutive G1+ days2
Ap rank1,103since 1932
Kp by 3-hour slot (UTC)
6o
7o
6o
5o
4-
2-
1o
1-
The days around it
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 25 May 2017 | 1o | 2 | – |
| 26 May 2017 | 1o | 2 | – |
| 27 May 2017 | 6- | 13 | G2 |
| 28 May 2017 | 7o | 47 | G3 |
| 29 May 2017 | 4o | 9 | – |
| 30 May 2017 | 3+ | 5 | – |
| 31 May 2017 | 2- | 3 | – |
Highest-Ap days of 2017
106
51
47
47
46
44
44
37
37
36
Dates and time slots are UTC. Kp is the 3-hourly planetary geomagnetic index (0–9); Ap is the daily average disturbance. G1–G5 follow the NOAA storm scale (Kp 5- and above counted as G1). Aurora visibility also depends on weather and location. The latest values are preliminary.
About this page
Max Kp 7o, Ap 47: No. 1,103 of 34,615 days since 1932 by Ap.