The Short-Term K5 Warning is a "high-confidence" notification of geomagnetic activity expected to reach the K5 alert threshold.
NOAA / Space Weather Prediction Center
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The Short-Term K5 Warning is a "high-confidence" notification of geomagnetic activity expected to reach the K5 alert threshold.
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Statistics Summary Table
K5 Warning Contingency
Table and Statistics
K5 Warning Lead Time
Plot