NOAA SEC Space Weather Advisory Outlook #03- 26

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

SPACE WEATHER ADVISORY OUTLOOK #03- 26

2003 July 01 at 02:10 p.m. MDT (2003 July 01 2010 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For June 23-29

Space weather for the past week reached moderate levels. A category G1
(minor) geomagnetic storm was observed on June 23rd and 24th due to a
couple of small coronal holes and their associated high speed solar
wind. A very large coronal hole was observed on June 26th – June 29th
and the high speed winds produced a category G2 (moderate) geomagnetic
storm on June 27th and 28th. The storm weakened to a category G1
(minor) on June 29th. For a list of adverse system effects related to
space weather storms, please refer to the NOAA Space Weather Scales.

Outlook For July 2-8

Space weather is expected to be at minor to moderate levels. The
geomagnetic field may reach category G1 and G2 during the period due to
a large coronal hole and its associated high speed solar wind.

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.