Viewing archive of Sunday, 9 November 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Nov 09 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 313 Issued at 2200Z on 09 Nov 2025IA. Analysis of Solar Active Regions and Activity from 08-2100Z to 09-2100Z Solar activity has been at high levels for the past 24 hours.
There are currently 7 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a chance for X-class flares on days one, two, and three (10 Nov, 11
Nov, 12 Nov).
IIA. Geophysical Activity Summary 08-2100Z to 09-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 670 km/s at 08/2100Z. Total IMF reached 7 nT at
09/1852Z. The maximum southward component of Bz reached -3 nT at
09/0354Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1046 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (10 Nov), unsettled to
major storm levels on day two (11 Nov) and quiet to major storm levels
on day three (12 Nov). Protons have a chance of crossing threshold on
days one, two, and three (10 Nov, 11 Nov, 12 Nov).
III. Event Probabilities 10 Nov to 12 Nov
| Class M | 70% | 70% | 70% |
| Class X | 25% | 25% | 25% |
| Proton | 25% | 25% | 25% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 09 Nov 176 Predicted 10 Nov-12 Nov 175/180/180 90 Day Mean 09 Nov 151
V. Geomagnetic A Indices
Observed Afr/Ap 08 Nov 025/036 Estimated Afr/Ap 09 Nov 010/012 Predicted Afr/Ap 10 Nov-12 Nov 013/018-023/035-018/025
VI. Geomagnetic Activity Probabilities 10 Nov to 12 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 25% | 30% |
| Minor storm | 30% | 40% | 35% |
| Major-severe storm | 15% | 30% | 25% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 20% | 15% | 15% |
| Major-severe storm | 65% | 79% | 80% |
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 | 175.4 +83.6 |
| Last 30 days | 106.4 +12.9 |