Viewing archive of Wednesday, 5 February 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Feb 05 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 36 Issued at 2200Z on 05 Feb 2025IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M2 event observed at
05/0750Z from Region 3977 (N18W41). There are currently 9 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 (06 Feb, 07
Feb, 08 Feb).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 457 km/s at 05/0749Z. Total IMF reached 7
nT at 05/2023Z. The maximum southward component of Bz reached -5 nT at
05/1644Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 426 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (06 Feb, 08
Feb) and quiet to active levels on day two (07 Feb). Protons have a
chance of crossing threshold on days one, two, and three (06 Feb, 07
Feb, 08 Feb).
III. Event Probabilities 06 Feb to 08 Feb
| Class M | 85% | 85% | 85% |
| Class X | 25% | 25% | 25% |
| Proton | 25% | 25% | 25% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Feb 191 Predicted 06 Feb-08 Feb 195/195/200 90 Day Mean 05 Feb 193
V. Geomagnetic A Indices
Observed Afr/Ap 04 Feb 004/004 Estimated Afr/Ap 05 Feb 006/007 Predicted Afr/Ap 06 Feb-08 Feb 009/008-010/012-008/010
VI. Geomagnetic Activity Probabilities 06 Feb to 08 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 25% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 20% | 30% | 25% |
All times in UTC
Latest news
Thursday, 11 September 2025
Coronal hole faces Earth
Sunday, 31 August 2025
M2.7 solar flare with earth-directed CME!
Tuesday, 5 August 2025
M4.4 solar flare from sunspot region 4168
Latest forum messages
Comet C/2025 A6 (Lemmon) 72CMEs from 2025/10/03 48Coronal Hole 85 2Unspecified geomagnetic activity 3204Incoming & Unnumbered Active Regions 2108
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2025/06/19 | X1.9 |
| Last M-flare | 2025/10/03 | M1.2 |
| Last geomagnetic storm | 2025/10/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| September 2025 | 129.8 -3.7 |
| October 2025 | 140.1 +10.3 |
| Last 30 days | 131.3 -1.2 |