Viewing archive of Thursday, 25 March 2004
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 2004 Mar 25 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 085 Issued at 2200Z on 25 Mar 2004IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity was moderate. Newly visible Region 582
(N16E72) rotated onto the disk, elevating activity levels. It
produced an M1/Sf at 24/2329UTC, and an M2/Sf at 0439UTC. The region
emerged on the invisible disk and arrives with hot plage and a
bright x-ray corona. Elsewhere, the six other visible regions were
mostly quiet and stable.
IB. Solar Activity Forecast
Solar activity is expected to be
moderate, due to additional M-level activity from Region 582.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field was quiet to unsettled. ACE data show a slight
increase in solar wind radial speed and magnetic field strength
through the period. The greater than 2 MeV electron flux at
geostationary orbit was high for a short time.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled early, then slightly more
disturbed through the interval. A high speed stream may begin to
affect the field late on 28 March.
III. Event Probabilities 26 Mar to 28 Mar
| Class M | 60% | 60% | 60% |
| Class X | 10% | 10% | 10% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Mar 127 Predicted 26 Mar-28 Mar 130/135/130 90 Day Mean 25 Mar 110
V. Geomagnetic A Indices
Observed Afr/Ap 24 Mar 001/004 Estimated Afr/Ap 25 Mar 007/010 Predicted Afr/Ap 26 Mar-28 Mar 005/010-010/010-010/015
VI. Geomagnetic Activity Probabilities 26 Mar to 28 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 25% |
| Minor storm | 05% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Ask your obscure/"stupid" space weather questions. 113Incoming & Unnumbered Active Regions 1363Strong far side CME 339AR 13932 28AR 3928 6
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 | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/23 | M8.9 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 106.6 -45.9 |
| Last 30 days | 116.1 -41.8 |