2026-09-16T21:00:00Z kp 4.67 estimated G1
2026-09-17T00:00:00Z kp 4.00 predicted
2026-09-17T03:00:00Z kp 4.67 predicted G1
2026-09-17T06:00:00Z kp 3.67 predicted
2026-09-17T09:00:00Z kp 3.33 predicted
2026-09-17T12:00:00Z kp 3.33 predicted
2026-09-17T15:00:00Z kp 3.33 predicted
2026-09-17T18:00:00Z kp 3.33 predicted
2026-09-17T21:00:00Z kp 3.33 predicted
2026-09-18T00:00:00Z kp 3.67 predicted
2026-09-18T03:00:00Z kp 2.00 predicted
2026-09-18T06:00:00Z kp 2.00 predicted
2026-09-18T09:00:00Z kp 2.67 predicted
2026-09-18T12:00:00Z kp 2.67 predicted
2026-09-18T15:00:00Z kp 2.67 predicted
2026-09-18T18:00:00Z kp 2.67 predicted
2026-09-18T21:00:00Z kp 3.00 predicted
2026-09-19T00:00:00Z kp 2.67 predicted
2026-09-16 scales R1-R2 5% R3+ 1% S1+ 1% G 1 minor
2026-09-17 scales R1-R2 5% R3+ 1% S1+ 1% G 1 minor
2026-09-18 scales R1-R2 5% R3+ 1% S1+ 1% G 0 none
# type: reference-data
# source: NOAA Space Weather Prediction Center
# as-of: retrieved 2026-09-16T21:09:13Z
# note: forecasts, not observations
# license: https://www.weather.gov/disclaimer