Viewing archive of Sunday, 2 November 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Nov 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 306 Issued at 2200Z on 02 Nov 2025IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been at moderate levels for the past 24
hours. There are currently 3 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (03 Nov, 04 Nov,
05 Nov).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 641 km/s at 02/0719Z. Total IMF reached 7
nT at 02/0039Z. The maximum southward component of Bz reached -6 nT at
02/1816Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 12610 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (03 Nov), quiet to unsettled
levels on day two (04 Nov) and quiet levels on day three (05 Nov).
III. Event Probabilities 03 Nov to 05 Nov
| Class M | 25% | 40% | 40% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Nov 123 Predicted 03 Nov-05 Nov 125/125/130 90 Day Mean 02 Nov 151
V. Geomagnetic A Indices
Observed Afr/Ap 01 Nov 009/014 Estimated Afr/Ap 02 Nov 015/020 Predicted Afr/Ap 03 Nov-05 Nov 013/015-008/010-006/005
VI. Geomagnetic Activity Probabilities 03 Nov to 05 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 10% |
| Minor storm | 15% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 20% |
| Minor storm | 30% | 25% | 20% |
| Major-severe storm | 50% | 30% | 10% |
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 | 114.4 -9.6 |
| Last 30 days | 118.1 +9.1 |