:Issued: 2017 Apr 01 1303 UTC
:Product: documentation at http://www.sidc.be/products/tot
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# DAILY BULLETIN ON SOLAR AND GEOMAGNETIC ACTIVITY from the SIDC     #
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SIDC URSIGRAM 70401
SIDC SOLAR BULLETIN 01 Apr 2017, 1303UT
SIDC FORECAST (valid from 1230UT, 01 Apr 2017 until 03 Apr 2017)
SOLAR FLARES  : C-class flares expected, (probability >=50%)
GEOMAGNETISM  : Active conditions expected (A>=20 or K=4)
SOLAR PROTONS : Quiet
PREDICTIONS FOR 01 Apr 2017  10CM FLUX: 092 / AP: 015
PREDICTIONS FOR 02 Apr 2017  10CM FLUX: 093 / AP: 012
PREDICTIONS FOR 03 Apr 2017  10CM FLUX: 094 / AP: 012
COMMENT: Over the past 24 hours solar activity has been low. The largest
flare was a C1.7 class flare. Active Region (AR) 2645 (McIntosh class:Ekc;
Mag.type:Beta-Gmma) has been most active, producing 2 C-class flares,
including the C1.7 class flare, which peaked at 17:37 UT yesterday. All
other ARs have shown low levels of activity. AR 2645 has shown some
evidence of flux emergence and cancellation in HMI magnetogram
observations, this may increase flaring activity. No Earth directed Coronal
Mass Ejections (CMEs) have been detected. Solar protons have remained at
background levels over the past 24 hours. Solar activity is expected to
remain low over the next 24 hours with a high probability of C-class flares
and a low probability of M-class flares.
The solar wind speed has decreased from 700 till 580 km/s over the past 24
hours. The total magnetic field strength has fluctuated between 4 nT and
5.5 nT. The Bz component fluctuated between -4.2 and +5 nT. Geomagnetic
conditions ranged between Kp index 2-3 (NOAA) and local K index 2-4
(Dourbes) over the past 24 hours. There are no significant trans-equatorial
coronal holes. Geomagnetic conditions are expected to be unsettled to
active.
TODAY'S ESTIMATED ISN  : 070, BASED ON 20 STATIONS.
99999

SOLAR INDICES FOR 31 Mar 2017
WOLF NUMBER CATANIA    : 069
10CM SOLAR FLUX        : 091
AK CHAMBON LA FORET    : 026
AK WINGST              : 027
ESTIMATED AP           : 029
ESTIMATED ISN          : ///, BASED ON /// STATIONS.

NOTICEABLE EVENTS SUMMARY
DAY BEGIN MAX  END  LOC    XRAY OP  10CM Catania/NOAA RADIO_BURST_TYPES 
NONE
END

UMAGF 30503 70401 1004/ 31069 1/026 23334 33322
UMAGF 31523 70401 0000/ 31008 1/027 25443 33444
BT

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