Space Weather Advisory Outlook #02-38 — 17 Sep 2002

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

SPACE WEATHER ADVISORY OUTLOOK #02- 38

2002 September 17 at 01:12 p.m. MDT (2002 September 17 1912 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For September 9-15

Space weather reached moderate levels. The geomagnetic field
surrounding Earth reached a category G2 (moderate) storm on September
11th due to high speed solar wind interacting with the magnetic field.
Category R1 (minor) radio blackouts occurred on September 9th – 11th
and again on September 15th due to energetic solar flares from a very
active sunspot region, known to NOAA Space Environment Forecasters as
Sunspot Region 105. For a list of adverse system effects related to
space weather storms, please refer to the NOAA Space Weather Scales.

Outlook For September 18-24

Space weather is expected to reach minor levels. Category R1 (minor)
radio blackouts are possible. There is a slight chance of a category
R2 (moderate) radio blackout occurring early in the week.

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.