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Solar activity report
Report of Solar-Geophysical Activity 2026 Mar 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 81 Issued at 2200Z on 22 Mar 2026IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity has been at very low levels for the past 24
hours. There are currently 7 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on day one (23 Mar) and likely to be low
with a slight chance for an M-class flare on days two and three (24 Mar,
25 Mar).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic
field has been at unsettled to severe storm levels for the past 24
hours. Solar wind speed reached a peak of 716 km/s at 22/2027Z. Total
IMF reached 14 nT at 22/0849Z. The maximum southward component of Bz
reached -11 nT at 22/1432Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 1309 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to major storm levels on day one (23 Mar), quiet to
active levels on day two (24 Mar) and quiet to unsettled levels on day
three (25 Mar).
III. Event Probabilities 23 Mar to 25 Mar
| Class M | 25% | 20% | 20% |
| Class X | 05% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Mar 120 Predicted 23 Mar-25 Mar 120/120/122 90 Day Mean 22 Mar 141
V. Geomagnetic A Indices
Observed Afr/Ap 21 Mar 027/044 Estimated Afr/Ap 22 Mar 040/077 Predicted Afr/Ap 23 Mar-25 Mar 024/034-013/014-011/012
VI. Geomagnetic Activity Probabilities 23 Mar to 25 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 35% | 35% |
| Minor storm | 35% | 15% | 15% |
| Major-severe storm | 25% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 10% |
| Minor storm | 20% | 25% | 25% |
| Major-severe storm | 75% | 50% | 50% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/26 | M4.0 |
| Last geomagnetic storm | 2026/03/25 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 84 +5.8 |
| Last 30 days | 84 +6.2 |