Viewing archive of Friday, 21 November 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Nov 21 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 325 Issued at 2200Z on 21 Nov 2025IA. Analysis of Solar Active Regions and Activity from 20-2100Z to 21-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 6 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 (22
Nov, 23 Nov, 24 Nov).
IIA. Geophysical Activity Summary 20-2100Z to 21-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 489 km/s at 21/0407Z. Total IMF reached 14
nT at 20/2127Z. The maximum southward component of Bz reached -9 nT at
20/2248Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 547 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (22 Nov) and quiet levels
on days two and three (23 Nov, 24 Nov).
III. Event Probabilities 22 Nov to 24 Nov
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 21 Nov 121 Predicted 22 Nov-24 Nov 120/120/125 90 Day Mean 21 Nov 153
V. Geomagnetic A Indices
Observed Afr/Ap 20 Nov 006/007 Estimated Afr/Ap 21 Nov 010/010 Predicted Afr/Ap 22 Nov-24 Nov 008/008-006/005-006/005
VI. Geomagnetic Activity Probabilities 22 Nov to 24 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 25% | 20% | 20% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/06 | M8.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |