Viewing archive of Monday, 10 November 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Nov 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 314 Issued at 2200Z on 10 Nov 2025IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z 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 expected to be moderate
with a chance for X-class flares on days one, two, and three (11 Nov, 12
Nov, 13 Nov).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 598 km/s at 09/2102Z. Total IMF reached 8
nT at 10/1228Z. The maximum southward component of Bz reached -5 nT at
09/2113Z. Protons greater than 10 MeV at geosynchronous orbit reached a
peak level of 30 pfu at 10/1500Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 4275 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to major storm levels on day one (11 Nov), unsettled
to severe storm levels on day two (12 Nov) and unsettled to minor storm
levels on day three (13 Nov). Protons are expected to cross threshold on
day one (11 Nov), have a chance of crossing threshold on day two (12
Nov) and have a chance of crossing threshold on day three (13 Nov).
III. Event Probabilities 11 Nov to 13 Nov
| Class M | 75% | 75% | 75% |
| Class X | 35% | 35% | 35% |
| Proton | 99% | 50% | 35% |
| PCAF | yellow | ||
IV. Penticton 10.7 cm Flux
Observed 10 Nov 180 Predicted 11 Nov-13 Nov 182/182/182 90 Day Mean 10 Nov 152
V. Geomagnetic A Indices
Observed Afr/Ap 09 Nov 007/008 Estimated Afr/Ap 10 Nov 013/017 Predicted Afr/Ap 11 Nov-13 Nov 023/035-034/052-018/022
VI. Geomagnetic Activity Probabilities 11 Nov to 13 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 40% |
| Minor storm | 40% | 35% | 30% |
| Major-severe storm | 30% | 35% | 10% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 10% |
| Minor storm | 15% | 15% | 25% |
| Major-severe storm | 79% | 85% | 65% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/03/28 | M1.3 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| Last 30 days | 90 +16.9 |
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