Viewing archive of Thursday, 7 April 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Apr 07 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 97 Issued at 2200Z on 07 Apr 2022IA. Analysis of Solar Active Regions and Activity from 06-2100Z to 07-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
07/0131Z from Region 2985 (S20E16). There are currently 4 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on day one (08 Apr) and expected to
be very low with a slight chance for a C-class flare on days two and
three (09 Apr, 10 Apr).
IIA. Geophysical Activity Summary 06-2100Z to 07-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 466 km/s at 07/0510Z. Total IMF reached 7
nT at 07/0319Z. The maximum southward component of Bz reached -6 nT at
07/0326Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 3207 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on days one and two (08 Apr, 09 Apr) and
quiet to unsettled levels on day three (10 Apr).
III. Event Probabilities 08 Apr to 10 Apr
| Class M | 05% | 05% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 07 Apr 111 Predicted 08 Apr-10 Apr 108/108/105 90 Day Mean 07 Apr 113
V. Geomagnetic A Indices
Observed Afr/Ap 06 Apr 006/007 Estimated Afr/Ap 07 Apr 014/017 Predicted Afr/Ap 08 Apr-10 Apr 009/012-010/015-009/010
VI. Geomagnetic Activity Probabilities 08 Apr to 10 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 25% |
| Minor storm | 15% | 20% | 05% |
| Major-severe storm | 01% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 10% | 15% |
| Minor storm | 30% | 25% | 30% |
| Major-severe storm | 40% | 55% | 30% |
All times in UTC
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