Viewing archive of Sunday, 25 March 2001
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 2001 Mar 25 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 084 Issued at 2200Z on 25 Mar 2001IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity was moderate. Three M-class and two C9
events occurred during the period. The largest events were an M2/2N
from Region 9393 (N20E39) and an M2/1N from new Region 9401
(N22E55). Overall, activity increased noticeably during the
reporting period. Five new regions were numbered: 9398 (N20W10),
9399 (S30W09), 9400 (N11E20), 9401 (N22E55), and 9402 (N17E15).
Several different regions produced activity during the day and it
appears that the sun is entering into a highly active period.
IB. Solar Activity Forecast
Solar activity is expected to be
moderate with a good chance of isolated event class events being
produced from several of the different active regions.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field was mostly quiet to unsettled with a single,
isolated, mid-latitude period of active conditions occurring at
25/0900-1200 UTC.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled, barring an Earth-directed CME.
Isolated active periods are possible on the first day of the
forecast period.
III. Event Probabilities 26 Mar to 28 Mar
| Class M | 75% | 75% | 75% |
| Class X | 15% | 15% | 15% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Mar 217 Predicted 26 Mar-28 Mar 220/220/220 90 Day Mean 25 Mar 159
V. Geomagnetic A Indices
Observed Afr/Ap 24 Mar 006/013 Estimated Afr/Ap 25 Mar 010/010 Predicted Afr/Ap 26 Mar-28 Mar 010/018-005/010-005/005
VI. Geomagnetic Activity Probabilities 26 Mar to 28 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 25% | 25% |
| Minor storm | 10% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
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
AR 13932 12Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 11Strong far side CME 335Incoming & Unnumbered Active Regions 1353Unspecified geomagnetic activity 1750
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 | 2024/12/22 | M1.1 |
| 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 | 103.3 -49.2 |
| Last 30 days | 114 -43.9 |