National Weather Service

Generic Space Environment Advisory
NWS Homepage
This page is being discontinued on March 12, 2014.
The same data is available at this site. Please update your bookmarks.
Thank you, and we apologize for the inconvenience.
Please send an email to with any concerns.

Current Version
Previous Version:    
NWXX04 KWNP 270706

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

2014 October 27 at 1:02 a.m. MDT (2014 October 27 0702 UTC)


Summary For October 20-26

Category R1 (Minor) radio blackouts were observed on 21-24 October and again on 26 October.  A category R2 (Moderate) radio blackout was observed on 22 October.  Category R3 (Strong) radio blackouts were observed on 22 and 24-26 October.  Radio blackouts were due to flaring activity from Region 2192.

Category G1 (Minor) geomagnetic storming was observed on 20 October due to coronal hole high speed stream activity.

Outlook For October 27-November 2

Category R1-R3 (Minor-Strong) radio blackouts are likely from 27-30 October due to potential significant flare activity from Region 2192.

There is a chance for an S1 (Minor) solar radiation storm from 27-31 October due to potential significant flare activity from Region 2192.

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.

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE