Viewing archive of Tuesday, 24 November 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Nov 24 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 329 Issued at 2200Z on 24 Nov 2020IA. Analysis of Solar Active Regions and Activity from 23-2100Z to 24-2100Z Solar activity has been at very low levels for the past 24
hours. The largest solar event of the period was a C1 event observed at
24/0517Z from Region 2785 (S20E44). There are currently 3 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (25 Nov,
26 Nov, 27 Nov).
IIA. Geophysical Activity Summary 23-2100Z to 24-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 550 km/s at 23/2236Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 2375 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (25 Nov,
26 Nov, 27 Nov).
III. Event Probabilities 25 Nov to 27 Nov
| Class M | 10% | 10% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 24 Nov 100 Predicted 25 Nov-27 Nov 100/100/100 90 Day Mean 24 Nov 076
V. Geomagnetic A Indices
Observed Afr/Ap 23 Nov 007/006 Estimated Afr/Ap 24 Nov 004/005 Predicted Afr/Ap 25 Nov-27 Nov 007/008-007/010-008/008
VI. Geomagnetic Activity Probabilities 25 Nov to 27 Nov
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 25% | 20% |
| Minor storm | 10% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 35% | 40% | 30% |
All times in UTC
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | 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 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |