Välja antud: 2015 Aug 28 1230 UTC
M-class flares expected (probability >=50%)
Minor storm expected (A>=30 or K=5)
Warning condition (activity levels expected to increase, but no numeric forecast given)
10cm flux | Ap | |
---|---|---|
28 Aug 2015 | 115 | 041 |
29 Aug 2015 | 115 | 021 |
30 Aug 2015 | 110 | 017 |
Solar flaring activity was low with AR 2403 producing a number of C flares this morning. The largest one peaked at 2:51UT at C8 level. The new region in the South-East was numbered 2405. Larger flaring at M level from region 2403 remains fairly likely. The associated warning condition for proton events is maintained. No Earth-directed CME's were recorded in coronagraph data. While solar wind speed continued to drop from around 350 km/s to around 335 km/s, total magnetic field remained elevated to levels in the 10-15nT range with Bz mainly negative and extended periods of pronounced negative values down to -13nT. Yesterday afternoon saw the anticipated sector boundary crossing into the towards sector. The negative Bz values caused unsettled to moderate geomagnetic storm conditions (local K Dourbes 3-6, NOAA Kp 4-6). Solar wind speed is expected to rise under the influence of a high speed stream from a negative polarity coronal hole. Elevated solar wind conditions are hence expected to continue over the first days before subsiding. Consequently, unsettled to minor geomagnetic storm conditions are expected.
Today's estimated international sunspot number (ISN): 043, based on 18 stations.
Wolf number Catania | /// |
10cm solar flux | 110 |
AK Chambon La Forêt | 056 |
AK Wingst | 041 |
Estimated Ap | 047 |
Estimated international sunspot number | 055 - Based on 18 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
Kõik ajad UTC-s
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