B3.4 peak at 2026-09-16T11:53:00Z
# type: reference-data
# source: NOAA Space Weather Prediction Center
# as-of: 2026-09-16T21:06:00Z
# begin: 2026-09-16T11:46:00Z B2.5
# end: 2026-09-16T12:03:00Z B2.9
# current-xray-level: B2.4 at 2026-09-16T21:06:00Z
# satellite: GOES-18
# note: classes A < B < C < M < X, each ten times stronger; R1 radio blackouts start at M1
# license: https://www.weather.gov/disclaimer