Viewing archive of Sunday, 13 July 2014
Solar activity report
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 194 Issued at 2200Z on 13 Jul 2014IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z
IB. Solar Activity Forecast
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
IIB. Geophysical Activity Forecast
III. Event Probabilities 14 Jul to 16 Jul
| Class M | 60% | 40% | 25% |
| Class X | 10% | 05% | 05% |
| Proton | 10% | 05% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Jul 127 Predicted 14 Jul-16 Jul 120/115/110 90 Day Mean 13 Jul 137
V. Geomagnetic A Indices
Observed Afr/Ap 12 Jul 007/ 006 (Estimated) Estimated Afr/Ap 13 Jul 007/008 Predicted Afr/Ap 14 Jul-16 Jul 008/008-009/012-008/008
VI. Geomagnetic Activity Probabilities 14 Jul to 16 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 20% | 20% | 20% |
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
21:51 UTC - Solar flare
Moderate M1.33 flare from sunspot region 4274
21:36 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.33)
20:30 UTC - Solar flare
Moderate M1.37 flare from sunspot region 4274
20:15 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.37)
X4.0 solar flare
A X4.0 (R3-strong) solar flare peaked at 08:30 UTC this morning. It was of course departing sunspot region 4274 which has been the source of so many solar flares and even geomagnetic storms this past week that provided the fireworks.
Space weather facts
| Last X-flare | 2025/11/14 | X4.0 |
| Last M-flare | 2025/11/14 | M1.3 |
| Last geomagnetic storm | 2025/11/13 | Kp7+ (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2025 | 114.6 -15.2 |
| November 2025 | 100.3 -14.3 |
| Last 30 days | 98.1 -36.4 |