Peak flux (for x-ray flare of M-class) was ~11:35 UT.
Space Weather Message Code: ALTTP2 Serial Number: 1107 Issue Time: 2021 Dec 20 1205 UTC ALERT: Type II Radio Emission Begin Time: 2021 Dec 20 1122 UTC Estimated Velocity: 350 km/s NOAA Space Weather Scale descriptions can be found at www.swpc.noaa.gov/noaa-scales-explanation Description: Type II emissions occur in association with eruptions on the sun and typically indicate a coronal mass ejection is associated with a flare event.