Generic Space Environment Advisory
Issued by NWS

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NWXX04 KWNP 290706

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

2015 June 29 at 1:03 a.m. MDT (2015 June 29 0703 UTC)


Summary For June 22-28

Category R2 (Moderate) radio blackouts were observed on 22 and 25 June due to flare activity from active sunspot Region 2371.

Category S1 (Minor) solar radiation storms occurred on 24, 26, and 27 June with S2 (moderate) levels on 23 June, and S3 (Strong) on 22 June due to a combination of flare activity from active sunspot Region 2371 as well as a shock enhancement from the arrival of the 21 June coronal mass ejection (CME).

Category G1-G4 (Minor to Severe) geomagnetic storms were observed on 22-23 June with the arrival of the 19 June CME.  Category G1-G2 (Minor to Moderate) geomagnetic storms were also observed on 25 June due to the arrival of the 22 June CME.

Outlook For June 29-July 5

No space weather storms are expected.

Current space weather conditions at, and

Data used to provide space weather services are contributed by NOAA,
USAF, NASA, NSF, USGS, the International Space Environment Service (ISES)
and other observatories, universities, and institutions. For more
information, including email services, see SWPC`s Space Weather
Advisories Web site or (303) 497-5127. is the U.S. government's official web portal to all federal, state and local government web resources and services.