Viewing archive of Wednesday, 1 January 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Jan 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 1 Issued at 2200Z on 01 Jan 2025IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z Solar activity has been at high levels for the past 24 hours.
The largest solar event of the period was a M2 event observed at
31/2250Z from Region 3938 (N19W28). There are currently 9 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be moderate
with a slight chance for an X-class flare on days one and two (02 Jan,
03 Jan) and likely to be moderate on day three (04 Jan).
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic
field has been at active to severe storm levels for the past 24 hours.
Solar wind speed reached a peak of 575 km/s at 01/0711Z. Total IMF
reached 25 nT at 01/1608Z. The maximum southward component of Bz reached
-23 nT at 01/1623Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (02 Jan, 03 Jan) and
quiet levels on day three (04 Jan). Protons greater than 10 Mev have a
slight chance of crossing threshold on days one and two (02 Jan, 03
Jan).
III. Event Probabilities 02 Jan to 04 Jan
| Class M | 80% | 75% | 70% |
| Class X | 10% | 10% | 05% |
| Proton | 10% | 10% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Jan 219 Predicted 02 Jan-04 Jan 220/215/220 90 Day Mean 01 Jan 205
V. Geomagnetic A Indices
Observed Afr/Ap 31 Dec 010/012 Estimated Afr/Ap 01 Jan 047/085 Predicted Afr/Ap 02 Jan-04 Jan 012/015-012/015-005/005
VI. Geomagnetic Activity Probabilities 02 Jan to 04 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 35% | 10% |
| Minor storm | 15% | 15% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 30% | 25% | 20% |
| Major-severe storm | 50% | 50% | 15% |
All times in UTC
Latest news
Wednesday, 13 May 2026
Coronal hole faces Earth
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Latest forum messages
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 | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/29 | M1.1 |
| Last geomagnetic storm | 2026/05/16 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| Last 30 days | 96.3 +4.4 |
This day in history*
Aurora on this day in history
No observations submitted for this day in history. If you've observed the aurora and you have some amazing photos to show off, submit your observations now!
Submit your aurora observation