Status Report

NOAA SEC Space Weather Outlook #03- 28

By SpaceRef Editor
July 15, 2003
Filed under ,

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

2003 July 15 at 12:58 p.m. MDT (2003 July 15 1858 UTC)


Summary For July 7-13

Space weather reached moderate levels this week. A category G2
(moderate) geomagnetic storm occurred on July 11th due to high speed
solar winds from a coronal hole on the sun. On July 12th, the
geomagnetic storm continued and briefly reached category G3 (strong)
levels. The storm ended late on July 12th. Category R1 (minor) radio
blackouts occurred three time during the week; the first on July 9th
4:38 P.M. MDT (2238 UTC), the second on July 10th at 8:12 A.M. MDT
(1412 UTC), and the third July 12th at 1:06 P.M. MDT (1906 UTC). For a
list of adverse system effects related to space weather storms, please
refer to the NOAA Space Weather Scales.

Outlook For July 16-22

Space weather is expected to be at minor levels. The geomagnetic field
is expected to reach category G1 geomagnetic storming on July 16th –
17th and again on July 20th – 21st due to coronal holes and their
associated high speed solar wind. An isolated category R1 (minor)
radio blackout is possible.

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 or (303) 497-5127.
The NOAA Public Affairs contact is Barbara McGehan at or (303) 497-6288.

SpaceRef staff editor.