NOAA / Space Weather Prediction Center
Official Space Weather Advisory issued by NOAA Space Weather Prediction Center Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #17-20
2017 May 14 at 8:48 p.m. MDT (2017 May 15 0248 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For May 8-14
No significant space weather storms were observed during the summary period.
Outlook For May 15-21
G1 (Minor) storm levels are likely on 16 May, 18 May, and 21 May due to CH HSS influence.
G2 (Moderate) storm levels are likely on 17 May due to combined effects from a positive polarity CH HSS and a CME.
G2 (Moderate) storm levels are again likely on 19-20 May due to fast wind speeds from a negative CH HSS respectively.
No other significant space weather storms are expected during the outlook period.
For current space weather conditions see: Space Weather Now, Today's Space Weather and Space Weather Alerts
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. For more information, including email services, see SWPC's Space Weather Advisories Web site http://swpc.noaa.gov/advisories or (303) 497-5127.
NOAA Space Weather Scales - Description of catagories used in Outlooks.
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