Official Space Weather Advisory issued by NOAA Space Weather Prediction Center

Boulder, Colorado, USA



SPACE WEATHER ADVISORY OUTLOOK #24-17

2024 April 21 at 8:07 p.m. MDT (2024 April 22 0207 UTC)



**** SPACE WEATHER OUTLOOK ****



Summary For April 15-21


R1 (Minor) events were observed on 15-19 Apr and 21 Apr in response to activity from Regions 3634, 3635, 3638, 3639, 3643, 3645, and 3647.



G1 (Minor) geomagnetic storms were observed on 16 Apr in response to a CME that left the Sun on 12 Apr.



G3 (Strong) geomagnetic storms were observed on 19 Apr in response to a CME that left the Sun on 15 Apr.



No other space weather storms were observed during the summary period.



Outlook For April 22-28



R1-R2 (Minor-Moderate) radio blackouts are expected on 22-27 Apr due to the flare potential from multiple sunspot groups in the Sun's W hemisphere.



No other space weather storms are expected during the outlook period.



Data used to provide space weather services are contributed by NOAA,

USAF, NASA, NSF, USGS, the International Space Environment Services 

and other observatories, universities, and institutions. More 

information is available at SWPC's Web site http://swpc.noaa.gov

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