SETI public: Fw: Space-Weather-Outlook

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----- Original Message -----
From: Space Environment Center
Sent: Tuesday, June 17, 2003 2:36 PM
To: advisory-list-send_at_dawn.sec.noaa.gov
Subject: Space-Weather-Outlook

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

SPACE WEATHER ADVISORY OUTLOOK #03- 24
2003 June 17 at 12:20 p.m. MDT (2003 June 17 1820 UTC)

**** SPACE WEATHER OUTLOOK ****

Summary For June 9-15
Space weather for the past week has reached strong levels. Category R3
(strong) radio blackouts occurred on June 9th through June 11th and
again on June 15th. Category R2 (moderate) radio blackouts occurred
on June 12th and Category R1 (minor) occurred on June 13th and 14th.
Activity between June 9th and 13th was due to a very active sunspot
region known to NOAA Space Weather Forecasters as Active Region 375.
All the radio blackouts between June 9th and 13th were to due to
energetic solar flares from this region. The category R1 radio
blackout on June 14th and the Category R3 radio blackout on June 15th
were due to solar flares from a new sunspot region, Active Region 386
just rotating onto the visible side of the sun. The geomagnetic field
reached G2 (moderate) storm levels on June 9th and 10th due to a
coronal hole and its high speed solar wind impacting Earths magnetic
field. Category G1 (minor) storming was observed on June 14th and 15th
due to matter ejected from the numerous solar flares we had during the
week. This matter has varied magnetic field orientations, which
interact with the Earths magnetic field and can cause geomagnetic
storms. For a list of adverse system effects related to space weather
storms, please refer to the NOAA Space Weather Scales.

Outlook For June 18-24
Space weather is expected to be at minor to moderate levels. Active
Region 386 is likely to produce category R1 to category R2 radio
blackouts with a chance of a reaching R3 levels. The geomagnetic field
may reach category G1 storm levels early in the period due to high
speed solar wind from another coronal hole due on June 18th - 20th.

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_at_noaa.gov or (303) 497-6288.

• Previous message: LARRY KLAES: "SETI public: Fw: AstroAlert: Addendum to the "Return of the King" AstroAlert"

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