NOAA SEC Space Weather Advisory Bulletin #04- 52

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

SPACE WEATHER ADVISORY OUTLOOK #04- 52

2004 December 28 at 03:40 p.m. MST (2004 December 28 2240 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For December 20-26

Category G1 (minor) geomagnetic storming occurred on 21 and 22 December
due to high speed solar winds from a coronal hole on the sun.

Outlook For December 29-January 4

Category G1 (minor) geomagnetic storming levels are possible on 02 and
03 December due to the effects of a high speed solar wind stream from a
coronal hole on the sun. Category R1 (minor) radio blackouts are
possible for the rest of the forecast period from an active sunspot
group that is on the visible disk.

For current space weather conditions please refer to:
http://www.sec.noaa.gov/SWN/
http://www.sec.noaa.gov/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 SEC’s Space Weather
Advisories Web site http://sec.noaa.gov/advisories or (303) 497-5127.