Viewing archive of Tuesday, 25 April 2006
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2006 Apr 25 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 115 Issued at 2200Z on 25 Apr 2006IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity was low. Region 875 (S10E46), a beta
gamma delta magnetic group, produced a long duration C1 flare at
25/0726 UTC. An associated CME was observed in LASCO imagery off the
east limb with a speed of approximately 520 Km/s. This CME is not
expected to be geoeffective.
IB. Solar Activity Forecast
Solar activity is expected to be very
low to low. An isolated M-class flare is possible from Region 875.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field was mostly quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be mostly quiet.
III. Event Probabilities 26 Apr to 28 Apr
| Class M | 15% | 15% | 15% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Apr 095 Predicted 26 Apr-28 Apr 095/095/095 90 Day Mean 25 Apr 079
V. Geomagnetic A Indices
Observed Afr/Ap 24 Apr 004/007 Estimated Afr/Ap 25 Apr 005/005 Predicted Afr/Ap 26 Apr-28 Apr 005/005-005/005-003/005
VI. Geomagnetic Activity Probabilities 26 Apr to 28 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 10% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
Latest news
Saturday, 4 May 2024
Sunspot region 3663, X1 solar flare
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Latest forum messages
AR3663 83Latest SC25 Predictions 107Weakening of Earths magnetic field due to geomagnetic excursion 4Changelog/Featurelog 155AR3664 3
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 | 2024/05/03 | X1.6 |
| Last M-flare | 2024/05/04 | M1.5 |
| Last geomagnetic storm | 2024/05/02 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 151.9 +56.5 |