B4.0 peak at 2026-10-31T20:51:00Z
# type: reference-data
# source: NOAA Space Weather Prediction Center
# as-of: 2026-10-31T23:40:00Z
# begin: 2026-10-31T20:44:00Z B3.4
# end: 2026-10-31T21:06:00Z B3.7
# current-xray-level: A0.0 at 2026-10-31T23:40:00Z
# 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