Viewing archive of Tuesday, 13 January 2026
Solar activity report
Report of Solar-Geophysical Activity 2026 Jan 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 13 Issued at 2200Z on 13 Jan 2026IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 3 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (14 Jan, 15 Jan,
16 Jan).
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 642 km/s at 13/0146Z. Total IMF reached 8
nT at 13/1046Z. The maximum southward component of Bz reached -7 nT at
13/0337Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 3574 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (14 Jan), quiet to unsettled
levels on day two (15 Jan) and quiet levels on day three (16 Jan).
III. Event Probabilities 14 Jan to 16 Jan
| Class M | 25% | 25% | 25% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Jan 117 Predicted 14 Jan-16 Jan 120/122/125 90 Day Mean 13 Jan 146
V. Geomagnetic A Indices
Observed Afr/Ap 12 Jan 014/018 Estimated Afr/Ap 13 Jan 009/011 Predicted Afr/Ap 14 Jan-16 Jan 011/012-008/008-006/005
VI. Geomagnetic Activity Probabilities 14 Jan to 16 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 10% |
| Minor storm | 15% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 25% | 20% |
| Major-severe storm | 50% | 25% | 15% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2026/01/17 | M2.2 |
| Last geomagnetic storm | 2026/01/16 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 96.7 -27.3 |
| Last 30 days | 101.3 -5.7 |