NOAA SEC Space Weather Advisory Outlook #04- 4
Official Space Weather Advisory issued by NOAA Space Environment Center
Boulder, Colorado, USA
SPACE WEATHER ADVISORY OUTLOOK #04- 4
2004 January 27 at 02:20 p.m. MST (2004 January 27 2120 UTC)
**** SPACE WEATHER OUTLOOK ****
Summary For January 19-25
Space weather during the past week reached strong levels. Two category
R1 (minor) radio blackouts were observed on 19 January. A category R2
(moderate) radio blackout occurred on 20 January due to an M6 solar
flare that originated from an active sunspot region designated by NOAA
Space Weather forecasters as Active Region 540. This Active Region was
also responsible for the Category R1 radio blackouts on the 19th. A
category G3 (strong) geomagnetic storm was observed on January 22nd due
to a coronal mass ejection (CME) that left the sun on 20 January.
Category G1 (minor) periods were observed on the 23rd and 25th due
mainly to weak CME effects. For a list of adverse system effects
related to space weather storms, please refer to the NOAA Space Weather
Scales.
Outlook For January 28-February 3
Space weather for the next week may reach minor levels. G1 (minor)
geomagnetic storm levels are expected in early February from high speed
solar winds from a coronal hole on the sun. There is a slight chance
for R1 radio blackouts in early February as old active regions rotate
onto the visible disk.
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.
