Välja antud: 2016 Jul 18 1230 UTC
C-class flares expected, (probability >=50%)
Active conditions expected (A>=20 or K=4)
Quiet
10cm flux | Ap | |
---|---|---|
18 Jul 2016 | 107 | 003 |
19 Jul 2016 | 106 | 013 |
20 Jul 2016 | 105 | 013 |
The strongest event of the period was a long duration C6.6 flare over the middle and southern portions of NOAA 2567 peaking at 23:35UT. This region continued its magnetic interaction with NOAA 2565 resulting in two other low-level C-class flares over the inversion line between the two sunspot groups. A small new region (Catania 12) emerged in the northeast quadrant but is quiet.
Further C-class flares are expected, with a chance on an isolated M-class flare.
Coronal dimming was observed in the NOAA2565/2567 complex during the long duration C1 event from 17 July (peaking at 08:03UT). Coronagraphic imagery indicates that the associated coronal mass ejections (CMEs) were faint and slow, but may have had an earth-directed component. The arrival time of this complex chain of CMEs is currently estimated for 22 July around 00:00UT (+/- 12 hours).
Quiet to unsettled geomagnetic conditions were observed. Solar wind parameters were at nominal values, with wind speed declining from 460 to 410 km/s. A negative coronal hole (CH; latitude +15 degrees) is currently transiting the central meridian (CM).
Quiet to unsettled geomagnetic conditions are expected. The arrival of a high speed stream (HSS) from a negative CH on the southern hemisphere (-25 degrees) is possible on 19 or 20 July, which may result in active geomagnetic conditions.
Today's estimated international sunspot number (ISN): 067, based on 29 stations.
Wolf number Catania | /// |
10cm solar flux | 105 |
AK Chambon La Forêt | 011 |
AK Wingst | 006 |
Estimated Ap | 006 |
Estimated international sunspot number | 041 - Based on 24 stations |
Day | Begin | Max | Lõpp | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
---|---|---|---|---|---|---|---|---|---|---|
Puuduvad |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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