Viewing archive of Wednesday, 16 May 2012
Solar activity report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 137 Issued at 2200Z on 16 May 2012IA. Analysis of Solar Active Regions and Activity from 15-2100Z to 16-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 15-2100Z to 16-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 17 May to 19 May
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 16 May 131 Predicted 17 May-19 May 130/130/130 90 Day Mean 16 May 115
V. Geomagnetic A Indices
Observed Afr/Ap 15 May 005/005 Estimated Afr/Ap 16 May 007/008 Predicted Afr/Ap 17 May-19 May 004/005-004/005-004/005
VI. Geomagnetic Activity Probabilities 17 May to 19 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
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
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