NOAA/SEC Space Weather Advisory Outlook #04- 30
Official Space Weather Advisory issued by NOAA Space Environment Center
Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #04- 30
2004 July 26 at 04:34 p.m. MDT (2004 July 26 2234 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For July 19-25
Space weather reached severe levels this period. Category R1 (minor)
radio blackouts were observed on 22 through 25 July and R2 (moderate)
radio blackouts were observed on 20 and 25 July due to solar flare
activity from active sunspot Region 652. Category G1 (minor) (22 – 24
July), G2 (moderate) (23 and 25 July), G3 (strong) (25 July), and G4
(severe) (25 July) geomagnetic storming occurred due to clouds of
magnetic material from numerous solar flares on the Sun that impacted
Earth. A category S1 (minor) solar radiation storm was observed on 25
July due to solar flare activity from active sunspot Region 652.
Outlook For July 28-August 3
Space weather for the next week is expected to reach moderate levels. A
complex sunspot cluster is currently visible on the Sun and has the
potential to produce R1 (minor) and R2 (moderate) radio blackouts in
addition to S1 (minor) and S2 (moderate) solar radiation storms. There
is a chance for category G1 (minor) and G2 (moderate) geomagnetic
storms due to high speed solar winds from a coronal hole on the Sun and
from clouds of magnetic material from solar flares on the Sun.
For current space weather conditions please refer to:
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.
