Viewing archive of Tuesday, 4 March 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Mar 04 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 63 Issued at 2200Z on 04 Mar 2025IA. Analysis of Solar Active Regions and Activity from 03-2100Z to 04-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C4 event observed at
04/1545Z from Region 4012 (S13E33). There are currently 8 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 (05 Mar, 06 Mar,
07 Mar).
IIA. Geophysical Activity Summary 03-2100Z to 04-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 558 km/s at 04/0525Z. Total IMF reached 8
nT at 04/0449Z. The maximum southward component of Bz reached -8 nT at
04/2037Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1125 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (05 Mar), quiet to
unsettled levels on day two (06 Mar) and quiet levels on day three (07
Mar).
III. Event Probabilities 05 Mar to 07 Mar
| Class M | 40% | 40% | 40% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 04 Mar 160 Predicted 05 Mar-07 Mar 165/170/170 90 Day Mean 04 Mar 189
V. Geomagnetic A Indices
Observed Afr/Ap 03 Mar 005/004 Estimated Afr/Ap 04 Mar 012/016 Predicted Afr/Ap 05 Mar-07 Mar 019/025-008/010-005/005
VI. Geomagnetic Activity Probabilities 05 Mar to 07 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 15% |
| Minor storm | 30% | 05% | 05% |
| Major-severe storm | 10% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 25% | 30% | 20% |
| Major-severe storm | 65% | 30% | 20% |
All times in UTC
Latest news
Wednesday, 5 March 2025
Coronal hole faces Earth
Sunday, 23 February 2025
X2.0 solar flare from sunspot region 4001
Friday, 7 February 2025
Coronal hole faces Earth, Minor G1 geomagnetic storm watch
Latest forum messages
Coronal Hole 13 21Filaments and prominences 709AR 4016 9Unspecified geomagnetic activity 2114AR 4012 29
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/05 | M1.7 |
| Last geomagnetic storm | 2025/02/28 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| January 2025 | 137 -17.5 |
| March 2025 | 124.8 -12.2 |
| Last 30 days | 145.3 +2.5 |