Sunspot AR1875 erupted on Oct. 22nd (21:20 UT), with M4 level radio emissions. An alert was sent by the NOAA space weather division. There is a 30% chance of M class flares on Oct. 23rd and a 5% chance of X-flares.

Read:Previous ALERT – Solar M1.5 Class Event, Radio Emissions, CME 

Issue Time: 2013 Oct 23 0145 UTC

ALERT: Type II Radio Emission
Begin Time: 2013 Oct 22 2129 UTC
Estimated Velocity: 752 km/s

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.

NOAA Space Weather Scales (meaning of R1,
S1, Etc.) can be found at https://www.knowledgeorb.com/current-space-weather/noaa-space-weather-scales/
For more detailed current Space Weather visit KnowledgeOrb Space Weather at https://www.knowledgeorb.com/current-space-weather/
Aurora viewing updates can be seen on the KnowledgeOrb Aurora viewing page. https://www.knowledgeorb.com/current-aurora-borealis-activity-viewing/