Solar activity report
Below you'll find a daily report brought to you by the NOAA about the solar activity and auroral activity during the past day and the prediction for the coming days. This page is daily updated around midnight.
Report of Solar-Geophysical Activity 2019 Aug 25 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 237 Issued at 2200Z on 25 Aug 2019IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z
Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (26 Aug, 27 Aug, 28 Aug).
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 999 km/s at 25/1526Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 404 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (26 Aug, 27 Aug) and
quiet to unsettled levels on day three (28 Aug).
III. Event Probabilities 26 Aug to 28 Aug
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Aug 066 Predicted 26 Aug-28 Aug 067/067/067 90 Day Mean 25 Aug 068
V. Geomagnetic A Indices
Observed Afr/Ap 24 Aug 005/004 Estimated Afr/Ap 25 Aug 004/004 Predicted Afr/Ap 26 Aug-28 Aug 007/010-014/016-008/008
VI. Geomagnetic Activity Probabilities 26 Aug to 28 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 35% | 25% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 35% | 20% | 15% |
| Major-severe storm | 35% | 30% | 05% |
Latest news
Sunday, 25 August 2019 - 10:41 UTC
Coronal hole faces Earth
Friday, 2 August 2019 - 18:11 UTC
Coronal hole faces Earth, G1 watch
Wednesday, 10 July 2019 - 09:51 UTC
Minor G1 geomagnetic storm
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Space weather facts
| Last X-flare: | 2017/09/10 | X8.2 |
| Last M-flare: | 2017/10/20 | M1.0 |
| Last geomagnetic storm: | 2019/08/05 | Kp5 (G1) |
| Number of spotless days in 2019: | 165 | |
| Current stretch spotless days: | 20 | |