Viewing archive of Friday, 31 July 2015
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2015 Jul 31 1230 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Active conditions expected (A>=20 or K=4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 31 Jul 2015 | 102 | 022 |
| 01 Aug 2015 | 104 | 017 |
| 02 Aug 2015 | 106 | 007 |
Bulletin
Solar activity is low, no C-class flares in past 24 h and the situation is not expected to change in the coming hours.
The Earth is under the influence of a fast speed stream emanating from a coronal hole, solar wind speeds are around 500 km/s with interplanetary magnetic field magnitudes of 10 nT. Active conditions were observed overnight and more active to minor storm periods can be expected in the next 48 hours.
Today's estimated international sunspot number (ISN): 080, based on 25 stations.Solar indices for 30 Jul 2015
| Wolf number Catania | 100 |
| 10cm solar flux | 102 |
| AK Chambon La Forêt | 024 |
| AK Wingst | 020 |
| Estimated Ap | 017 |
| Estimated international sunspot number | 086 - Based on 35 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| None | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
Gillam, MBCurrent data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Iqaluit, NUNuuk
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