Viewing archive of Saturday, 25 April 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Apr 25 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 116 Issued at 2200Z on 25 Apr 2020IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity has been at very low levels for the past 24
hours. There is currently 1 numbered sunspot region on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (26 Apr, 27 Apr, 28 Apr).
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 465 km/s at 25/0526Z. Total IMF reached 7
nT at 25/0020Z. The maximum southward component of Bz reached -5 nT at
25/0034Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 211 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (26 Apr,
27 Apr, 28 Apr).
III. Event Probabilities 26 Apr to 28 Apr
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Apr 069 Predicted 26 Apr-28 Apr 070/070/070 90 Day Mean 25 Apr 070
V. Geomagnetic A Indices
Observed Afr/Ap 24 Apr 006/006 Estimated Afr/Ap 25 Apr 005/006 Predicted Afr/Ap 26 Apr-28 Apr 007/008-007/008-007/008
VI. Geomagnetic Activity Probabilities 26 Apr to 28 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 20% | 20% | 20% |
All times in UTC
Latest news
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Latest forum messages
Unspecified geomagnetic activity 1645Incoming & Unnumbered Active Regions 1210sun goes blank 76Space Weather Memes 571AR13883 2024/11/04 CME 45
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 | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/13 | M1.7 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 166 -0.4 |
| Last 30 days | 163.2 +18.4 |