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Kakioka K-index on 21
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 UT    K    Comments
00-03: 1    0: calm
03-06: 0    0: calm
06-09: 0    0: calm
09-12: 0    0: calm
12-15: 0    0: calm
15-18: 5    6: impulsive disturbances
18-21: 2    2: oscillation
21-24: 3    3: irregular disturbance
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K-sum: 11
K-max: 5
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MAGNE KA211 00005 23000 00623
REMARKS IMPULSIVE DISTURBANCE OCCURRED AT 1644