NOAA / Space Weather Prediction Center

S1 Proton Short-Term Warning Verification

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M-class Flares, X-class Flares, F10.7 Solar Flux, S1 Proton Events, S1 Event Warnings,
Glossary, Bibliography

The Short-Term S1 Proton Warning is a "high-confidence" notification of solar particle activity expected to reach the S1 proton alert threshold (10 pfu at greater than 10 MeV).

Stats Table Thumbnail Statistics Summary Table

Proton Warning Table Thumb Proton Warning Contingency Table and Statistics

Proton Warning Lead Time Plot Proton Warning Lead Time Plot