Viewing archive of Friday, 14 February 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Feb 14 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 45 Issued at 2200Z on 14 Feb 2025IA. Analysis of Solar Active Regions and Activity from 13-2100Z to 14-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
14/0228Z. There are currently 8 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares and a slight chance for an X-class flare on
days one, two, and three (15 Feb, 16 Feb, 17 Feb).
IIA. Geophysical Activity Summary 13-2100Z to 14-2100Z
The geomagnetic
field has been at unsettled to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 581 km/s at 14/1706Z. Total IMF
reached 9 nT at 14/1531Z. The maximum southward component of Bz reached
-8 nT at 14/0128Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 6603 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (15 Feb), quiet to
active levels on day two (16 Feb) and quiet to unsettled levels on day
three (17 Feb).
III. Event Probabilities 15 Feb to 17 Feb
| Class M | 45% | 45% | 45% |
| Class X | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 14 Feb 179 Predicted 15 Feb-17 Feb 185/190/190 90 Day Mean 14 Feb 192
V. Geomagnetic A Indices
Observed Afr/Ap 13 Feb 019/022 Estimated Afr/Ap 14 Feb 023/030 Predicted Afr/Ap 15 Feb-17 Feb 018/022-013/016-008/010
VI. Geomagnetic Activity Probabilities 15 Feb to 17 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 35% | 25% |
| Minor storm | 25% | 15% | 05% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 25% | 25% | 30% |
| Major-severe storm | 65% | 50% | 30% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/01/04 | X1.85 |
| Last M-flare | 2025/02/17 | M1.1 |
| Last geomagnetic storm | 2025/02/15 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2025 | 137 -17.5 |
| February 2025 | 155.6 +18.6 |
| Last 30 days | 159.2 +2.9 |