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Geomagnetic activity in April 1949
Mean Ap14.3No. 402 of 1138
G1+ days8
G3+ days2
Max Ap838 Apr 1949
Daily Ap
Daily max Kp
| Date | Max Kp | Ap | Level |
|---|---|---|---|
| 7 Apr 1949 | 7+ | 32 | G3 |
| 8 Apr 1949 | 7o | 83 | G3 |
| 10 Apr 1949 | 5+ | 32 | G1 |
| 11 Apr 1949 | 5+ | 29 | G1 |
| 12 Apr 1949 | 6o | 26 | G2 |
| 13 Apr 1949 | 5+ | 28 | G1 |
| 27 Apr 1949 | 5- | 14 | G1 |
| 29 Apr 1949 | 5+ | 16 | G1 |
Same month a year earlier
| Month | Mean Ap | G1+ | G3+ |
|---|---|---|---|
| April 1948 | 12.8 | 6 | 2 |
| April 1949 | 14.3 | 8 | 2 |
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
Mean Ap 14.3 in April 1949, No. 402 of 1138 months since 1932; 8 days reached G1 or higher.