Space Weather Outlook #02-31 — 31 Jul 2002

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

SPACE WEATHER ADVISORY OUTLOOK #02- 31

2002 July 31 at 03:12 p.m. MDT (2002 July 31 2112 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For July 22-30

Space weather reached strong levels during the period. A category R3
(strong) radio blackout occurred on July 23. Two category R2 (moderate)
radio blackouts and five category R1 (minor) radio blackouts occurred
on July 26. A category S1 (minor) solar radiation storm occurred during
July 22 – 27. Brief category G1 (minor) geomagnetic storm condition
were observed on July 22. For a list of adverse system effects related
to space weather storms, please refer to the NOAA Space Weather
Scales.

Outlook For July 31-August 6

Space weather is expected to be at minor to moderate levels. Isolated
category R1 (minor) to R2 (moderate) radio blackouts are possible
during the period. There will be a slight chance for a category S1
(minor) solar radiation during the period.

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.
The NOAA Public Affairs contact is Barbara McGehan at
Barbara.McGehan@noaa.gov or (303) 497-6288.