Viewing archive of Thursday, 6 November 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Nov 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 310 Issued at 2200Z on 06 Nov 2025IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z Solar activity has been at high 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 moderate
with a chance for X-class flares on days one, two, and three (07 Nov, 08
Nov, 09 Nov).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at quiet to severe storm levels for the past 24 hours.
Solar wind speed reached a peak of 682 km/s at 06/1924Z. Total IMF
reached 24 nT at 06/0716Z. The maximum southward component of Bz reached
-16 nT at 06/0414Z. Electrons greater than 2 MeV at geosynchronous
orbit reached a peak level of 341 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to severe storm levels on day one (07 Nov), unsettled
to major storm levels on day two (08 Nov) and unsettled to active levels
on day three (09 Nov). Protons have a slight chance of crossing
threshold on days one, two, and three (07 Nov, 08 Nov, 09 Nov).
III. Event Probabilities 07 Nov to 09 Nov
| Class M | 80% | 80% | 80% |
| Class X | 35% | 35% | 35% |
| Proton | 20% | 20% | 20% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Nov 163 Predicted 07 Nov-09 Nov 160/160/155 90 Day Mean 06 Nov 150
V. Geomagnetic A Indices
Observed Afr/Ap 05 Nov 019/028 Estimated Afr/Ap 06 Nov 036/058 Predicted Afr/Ap 07 Nov-09 Nov 043/076-023/034-014/018
VI. Geomagnetic Activity Probabilities 07 Nov to 09 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 40% | 35% |
| Minor storm | 35% | 30% | 15% |
| Major-severe storm | 35% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 10% |
| Minor storm | 15% | 20% | 25% |
| Major-severe storm | 79% | 65% | 50% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/04 | M6.0 |
| 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 | 186 +94.2 |
| Last 30 days | 106.3 +12.6 |