NOAA SEC Space Weather Advisory Outlook #04- 21

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

SPACE WEATHER ADVISORY OUTLOOK #04- 21

2004 May 24 at 11:18 a.m. MDT (2004 May 24 1718 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For May 17-23

Category G1 (minor) geomagnetic storming occurred on 20 May due to high
speed solar winds from a coronal hole on the Sun. Category R1 (minor)
radio blackouts occurred on 21 May due to solar flare activity from
active sunspot region 618.

Outlook For May 26-June 1

Space weather for the next week is expected to reach minor levels.
There is chance for category R1 (minor) radio blackouts due to solar
flare activity from Region 618.

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.