CME Scoreboard

Prediction for CME (2017-06-28T16:24:00-CME-001)

:Issued: 2017 Jun 29 1002 UTC
:Product: documentation at http://www.sidc.be/products/presto
#--------------------------------------------------------------------#
# FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium)         #
#--------------------------------------------------------------------#
A long duration event took place near AR 2664 (position N20W30) between
12:30 and 21:00UT on 28 June. This was a very gradual event, with the x-ray
flux staying at the B1 level for nearly 5 hours (from about 13UT till 18UT,
no x-ray flare reported). SDO/AIA 193 imagery showed coronal dimming to the
north and south of AR 2664. CACtus has the associated coronal mass ejection
(CME) currently catalogued as 2 separate CMEs, both first seen in LASCO/C2
at 16:24UT. The bulk of this partial halo CME seems to be headed to the
southwest, and has an angular width of about 170 degrees. The CME is very
weak, and was not identified in the ST-A/COR2 imagery (though another
unrelated CME directed to the east can clearly be seen around 16UT). The
CME is also moving rather slow, with Plane-of-the-Sky speeds between 175
and 215 km/s, and estimated true speeds of around 275 km/s. A glancing blow
from this CME is expected around noon on 03 July +/-12 hours. At most
active geomagnetic conditions are expected.
#--------------------------------------------------------------------#
# Solar Influences Data analysis Center - RWC Belgium                #
# Royal Observatory of Belgium                                       #
# Fax : 32 (0) 2 373 0 224                                           #
# Tel.: 32 (0) 2 373 0 491                                           #
#                                                                    #
# For more information, see http://www.sidc.be.  Please do not reply #
# directly to this message, but send comments and suggestions to     #
# 'sidctech@oma.be'. If you are unable to use that address, use      #
# 'rvdlinden@spd.aas.org' instead.                                   #
# To unsubscribe, visit http://sidc.be/registration/unsub.php        #
#                                                                    #
# Legal notices:                                                     #
# - Intellectual Property Rights:                                    #
#   http://www.astro.oma.be/common/internet/en/data-policy-en.pdf    #
# - Liability Disclaimer:                                            #
#   http://www.astro.oma.be/common/internet/en/disclaimer-en.pdf     #
# - Use and processing of your personal information:                 #
#   http://www.astro.oma.be/common/internet/en/privacy-policy-en.pdf #
#--------------------------------------------------------------------#

CCMC Rules of the Road: CCMC requests that users notify the CCMC, CME model/technique developers and submitting forecasters/researchers before performing event and validation studies with data from the CME Arrival Time Scoreboard. It is recommended that such studies be performed with the knowledge and collaboration of developers and submitting forecasters/researchers.

If you are looking for the official U.S. Government forecast for space weather, please go to NOAA's Space Weather Prediction Center (https://swpc.noaa.gov). This "Experimental Research Information" consists of preliminary NASA research products and should be interpreted and used accordingly.

Curator: Chiu Wiegand | NASA Official: Dr. Masha Kuznetsova | Privacy and Security Notices | Accessibility | CCMC Data Collection Consent Agreement