Viewing archive of Tuesday, 11 February 2020
Solar activity report
Report of Solar-Geophysical Activity 2020 Feb 11 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 42 Issued at 2200Z on 11 Feb 2020IA. Analysis of Solar Active Regions and Activity from 10-2100Z to 11-2100Z 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 (12 Feb, 13 Feb, 14 Feb).
IIA. Geophysical Activity Summary 10-2100Z to 11-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 480 km/s at 11/0230Z. Total IMF reached 6
nT at 11/0014Z. The maximum southward component of Bz reached -5 nT at
11/0013Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1640 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one, two, and three (12 Feb, 13 Feb, 14
Feb).
III. Event Probabilities 12 Feb to 14 Feb
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 11 Feb 071 Predicted 12 Feb-14 Feb 070/070/070 90 Day Mean 11 Feb 071
V. Geomagnetic A Indices
Observed Afr/Ap 10 Feb 004/003 Estimated Afr/Ap 11 Feb 008/011 Predicted Afr/Ap 12 Feb-14 Feb 006/005-006/005-006/005
VI. Geomagnetic Activity Probabilities 12 Feb to 14 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 10% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 15% |
| Minor storm | 20% | 20% | 20% |
| Major-severe storm | 10% | 10% | 10% |
All times in UTC
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