NOAA SWPC Space Weather Outlook #21-22 17 May 2021

Official Space Weather Advisory issued by NOAA Space Weather Prediction Center
Boulder, Colorado, USA

SPACE WEATHER ADVISORY OUTLOOK #21-22
2021 May 16 at 7:19 p.m. MDT (2021 May 17 0119 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For May 10-16

G3 (Strong) geomagnetic storm conditions were observed between 1200-1800 UTC on 12 May due to CME effects.

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

Outlook For May 17-23

G1 (Minor) geomagnetic storms are likely on 18 May due to anticpated CME effects.

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