Space Weather Outlook #00-52 12 Dec 2000

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

SPACE WEATHER OUTLOOK #00- 52

2000 December 12 at 01:42 p.m. MST (2000 December 12 2042 UT)

**** SPACE WEATHER OUTLOOK ****

Summary For December 4-10

Space weather was relatively calm during most of the period, but briefly
reached minor levels. A category R1 (minor) radio blackout occurred on
Dec. 6 due to a solar flare. A category R1 radio blackout may cause the
following system effects on the sunlit side of Earth: minor degradation
of high-frequency radio communication with occasional loss of radio
contact and brief degradation of low-frequency navigation signals.

Outlook For December 13-19

Space weather is expected to be at mostly minor levels. An increasing
trend is expected to commence this week. Isolated category R1 radio
blackouts are expected with system effects similar to those mentioned
above.

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.