Viewing archive of Monday, 27 February 2017
Solar activity report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 58 Issued at 2200Z on 27 Feb 2017IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 28 Feb to 02 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 27 Feb 082 Predicted 28 Feb-02 Mar 081/080/081 90 Day Mean 27 Feb 077
V. Geomagnetic A Indices
Observed Afr/Ap 26 Feb 000/002 Estimated Afr/Ap 27 Feb 006/007 Predicted Afr/Ap 28 Feb-02 Mar 010/012-017/025-015/020
VI. Geomagnetic Activity Probabilities 28 Feb to 02 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 35% |
| Minor storm | 10% | 25% | 25% |
| Major-severe storm | 01% | 05% | 05% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 30% | 25% | 20% |
| Major-severe storm | 40% | 60% | 60% |
All times in UTC
Latest news
X4.0 solar flare
X5.1 solar flare, G4 geomagnetic storm watch
X1.2 solar flare with earth-directed CME
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Latest alerts
Friday, 14 November 2025
21:51 UTC - Solar flare
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