Space Weather Outlook #01-37 – 12 Sep 2001

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

SPACE WEATHER OUTLOOK #01- 37

2001 September 12 at 10:14 a.m. MDT (2001 September 12 1614 UT)

**** SPACE WEATHER OUTLOOK ****

Summary For September 3-9

Space weather reached moderate levels. A category R2 (moderate) radio
blackout occurred on September 9 due to a large, but impulsive solar
flare. In addition, isolated category R1 (minor) radio blackouts were
observed almost daily due to moderate-sized solar flares. This flare
activity originated in a few large, magnetically complex sunspot groups
that are currently making their way across the face of the Sun. There
were no geomagnetic storms or solar radiation storms detected during
the period.

Outlook For September 12-18

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