Viewing archive of Wednesday, 26 November 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Nov 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 330 Issued at 2200Z on 26 Nov 2025IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 5 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (27
Nov, 28 Nov, 29 Nov).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic
field has been at unsettled to active levels for the past 24 hours.
Solar wind speed reached a peak of 838 km/s at 26/0924Z. Total IMF
reached 8 nT at 25/2121Z. The maximum southward component of Bz reached
-6 nT at 26/0557Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 10063 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at active to minor storm levels on day one (27 Nov), active levels
on day two (28 Nov) and quiet to unsettled levels on day three (29 Nov).
III. Event Probabilities 27 Nov to 29 Nov
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Nov 120 Predicted 27 Nov-29 Nov 120/125/125 90 Day Mean 26 Nov 148
V. Geomagnetic A Indices
Observed Afr/Ap 25 Nov 017/032 Estimated Afr/Ap 26 Nov 020/026 Predicted Afr/Ap 27 Nov-29 Nov 021/030-018/025-009/012
VI. Geomagnetic Activity Probabilities 27 Nov to 29 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 45% | 25% | 25% |
| Minor storm | 25% | 10% | 10% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 70% | 35% | 35% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| January 2026 | 117.9 -6.1 |
| Last 30 days | 121.4 +11.9 |