Viewing archive of Saturday, 26 March 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Mar 26 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 85 Issued at 2200Z on 26 Mar 2022IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z
Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
26/1538Z. There are currently 3 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 days one, two, and three (27 Mar,
28 Mar, 29 Mar).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 430 km/s at 25/2224Z. Total IMF reached 9
nT at 26/2021Z. The maximum southward component of Bz reached -7 nT at
26/1857Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 253 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on day one (27 Mar), quiet to
active levels on day two (28 Mar) and quiet levels on day three (29
Mar).
III. Event Probabilities 27 Mar to 29 Mar
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 26 Mar 119 Predicted 27 Mar-29 Mar 119/115/115 90 Day Mean 26 Mar 108
V. Geomagnetic A Indices
Observed Afr/Ap 25 Mar 010/011 Estimated Afr/Ap 26 Mar 007/009 Predicted Afr/Ap 27 Mar-29 Mar 014/018-010/012-006/005
VI. Geomagnetic Activity Probabilities 27 Mar to 29 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 25% | 15% |
| Minor storm | 25% | 10% | 01% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 25% | 25% | 20% |
| Major-severe storm | 65% | 35% | 20% |
All times in UTC
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Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/27 | M2.0 |
| Last geomagnetic storm | 2025/03/26 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
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| Last 30 days | 131.2 -21.8 |