Space Weather Outlook #02-9 — 26 Feb 2002

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

SPACE WEATHER OUTLOOK #02- 9

2002 February 26 at 11:33 a.m. MST (2002 February 26 1833 UT)

**** SPACE WEATHER OUTLOOK ****

Summary For February 18-24

Space weather reached moderate levels during the period. Isolated
category R1 (minor) radio blackouts occurred on February 18 and 20 – 22
due to moderate-sized solar flares. A category R2 (moderate) radio
blackout occurred on February 20 due to a major solar flare from the
Sun’s western limb. This flare also caused a brief category S1 (minor)
solar radiation storm on February 20. There were no geomagnetic storms
during the period. For a list of adverse system effects related to
space weather, please refer to the NOAA Space Weather Scales.

Outlook For February 27-March 5

Space weather is expected to be at minor levels. Isolated category R1
(minor) radio blackouts are likely. There will be a slight chance for
category G1 (minor) geomagnetic storm conditions during March 4 – 5 due
to an expected increase in solar wind velocities.

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. More
information is available at SEC’s Web site http://sec.noaa.gov or
(303) 497-5127. The NOAA Public Affairs contact is Barbara McGehan
at bmcgehan@boulder.noaa.gov or (303) 497-6288.