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 2026 Feb 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 32 Issued at 2200Z on 01 Feb 2026IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity has been at very high levels for the past 24
hours. There are currently 7 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be moderate
to high with a chance for X-class flares on days one, two, and three (02
Feb, 03 Feb, 04 Feb).
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 402 km/s at 31/2128Z. Total IMF reached 5 nT at
01/0250Z. The maximum southward component of Bz reached -4 nT at
01/1111Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 10156 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (02 Feb, 03 Feb, 04
Feb). Protons greater than 10 Mev have a slight chance of crossing
threshold on days two and three (03 Feb, 04 Feb).
III. Event Probabilities 02 Feb to 04 Feb
| Class M | 75% | 75% | 75% |
| Class X | 25% | 25% | 25% |
| Proton | 05% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Feb 162 Predicted 02 Feb-04 Feb 160/155/155 90 Day Mean 01 Feb 151
V. Geomagnetic A Indices
Observed Afr/Ap 31 Jan 003/005 Estimated Afr/Ap 01 Feb 004/004 Predicted Afr/Ap 02 Feb-04 Feb 005/005-005/005-006/005
VI. Geomagnetic Activity Probabilities 02 Feb to 04 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 10% | 10% | 10% |
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
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Space weather facts
| Last X-flare | 2026/02/02 | X2.9 |
| Last M-flare | 2026/02/02 | M1.9 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 97 -27 |
| Last 30 days | 118.3 +3.5 |