:Issued: 2013 May 14 1301 UTC
:Product: documentation at http://www.sidc.be/products/meu
#--------------------------------------------------------------------#
# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC #
# (RWC Belgium) #
#--------------------------------------------------------------------#
SIDC URSIGRAM 30514
SIDC SOLAR BULLETIN 14 May 2013, 1305UT
SIDC FORECAST (valid from 1230UT, 14 May 2013 until 16 May 2013)
SOLAR FLARES : Major flares expected (X-class flares expected, probability >=50%)
GEOMAGNETISM : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Warning condition (activity levels expected to increase, but no numeric forecast given)
PREDICTIONS FOR 14 May 2013 10CM FLUX: 150 / AP: 007
PREDICTIONS FOR 15 May 2013 10CM FLUX: 153 / AP: 015
PREDICTIONS FOR 16 May 2013 10CM FLUX: 156 / AP: 007
COMMENT:NOAA AR 1748 rotated into view, it is still not possible to infer its
magnetic configuration but it is a big region with mixed magnetic
polarities. It produced two X-class flares in past 24h and can produce
more. The first one was an X2.8 with peak at 16:05 UT on May 13, the second
one an X3.2 at 01:11 UT today. Both were related to radio bursts and fast
limb CMEs. The first CME has a speed of 1500 km/s in the LASCO C3 field of
view (decelerated with respect to the 1800 km/s seen in C2), while the
second one was travelling at 1900 km/s in LASCO C3 (accelerated from the
1600 km/s measured in C2). Due to the source region location right at the
limb, we expect at most a shock arriving to the Earth early on May 15
(09:00 UT for the first one and 13:00 UT for the second one). There is also
a CME from May 12 expected to arrive around the same time as the first CME
from yesterday. The second X flare and corresponding CME produced also a
rise on the proton flux, which is still below the threshold and seems
stable for the moment. NOAA AR 1745 has also potential for M flares. High
solar activity is expected for the next 48h. Geomagnetic conditions are
currently quiet. The possible arrival of a shock from the two halo CMEs and
a mild fast speed stream from a coronal hole may increase conditions to
active and possible minor storm levels in the next 48h.
TODAY'S ESTIMATED ISN : 106, BASED ON 14 STATIONS.
SOLAR INDICES FOR 13 May 2013
WOLF NUMBER CATANIA : 147
10CM SOLAR FLUX : 150
AK CHAMBON LA FORET : 007
AK WINGST : 006
ESTIMATED AP : 005
ESTIMATED ISN : 097, BASED ON 15 STATIONS.
NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX END LOC XRAY OP 10CM RADIO BURST TYPES Catania NOAA NOTE
NONE
END
BT
# 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
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and there's nothing else going on, in fact, lots o' good stuff has been going on.

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