Viewing archive of Sunday, 24 April 2011
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 2011 Apr 24 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 114 Issued at 2200Z on 24 Apr 2011IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity was low. Regions 1193 (N18W73) and 1195
(S15W01) remained stable and quiet.
IB. Solar Activity Forecast
Solar activity is expected to be low
for the next 3 days (25-27 April).
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be mostly quiet for the next 3 days (25-27 April).
III. Event Probabilities 25 Apr to 27 Apr
| Class M | 10% | 10% | 10% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Apr 117 Predicted 25 Apr-27 Apr 115/115/112 90 Day Mean 24 Apr 106
V. Geomagnetic A Indices
Observed Afr/Ap 23 Apr 004/006 Estimated Afr/Ap 24 Apr 003/005 Predicted Afr/Ap 25 Apr-27 Apr 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 25 Apr to 27 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| 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
Incoming & Unnumbered Active Regions 1360Strong far side CME 338Unspecified geomagnetic activity 175150 mhz F2 51AR 13932 13
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 | M1.0 |
| 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 |