Viewing archive of Tuesday, 25 February 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Feb 25 2225 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 56 Issued at 2200Z on 25 Feb 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 are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
on days one, two, and three (26 Feb, 27 Feb, 28 Feb).
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 423 km/s at 25/0001Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 956 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (26 Feb) and quiet levels
on days two and three (27 Feb, 28 Feb).
III. Event Probabilities 26 Feb to 28 Feb
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Feb 071 Predicted 26 Feb-28 Feb 070/070/070 90 Day Mean 25 Feb 071
V. Geomagnetic A Indices
Observed Afr/Ap 24 Feb 003/002 Estimated Afr/Ap 25 Feb 004/004 Predicted Afr/Ap 26 Feb-28 Feb 006/008-005/005-006/005
VI. Geomagnetic Activity Probabilities 26 Feb to 28 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 10% |
| Minor storm | 05% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 20% |
| Major-severe storm | 20% | 20% | 20% |
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