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Solar activity report
Report of Solar-Geophysical Activity 2026 Apr 22 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 112 Issued at 2200Z on 22 Apr 2026IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 4 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (23
Apr, 24 Apr, 25 Apr).
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 556 km/s at 22/0331Z. Total IMF reached 5 nT at
22/2057Z. The maximum southward component of Bz reached -5 nT at
22/0821Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 4922 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (23 Apr,
24 Apr, 25 Apr).
III. Event Probabilities 23 Apr to 25 Apr
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Apr 116 Predicted 23 Apr-25 Apr 120/120/110 90 Day Mean 22 Apr 130
V. Geomagnetic A Indices
Observed Afr/Ap 21 Apr 014/019 Estimated Afr/Ap 22 Apr 006/005 Predicted Afr/Ap 23 Apr-25 Apr 008/008-009/008-008/008
VI. Geomagnetic Activity Probabilities 23 Apr to 25 Apr
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 25% | 25% | 25% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/22 | M2.3 |
| Last geomagnetic storm | 2026/05/16 | Kp6- (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 89.2 +9.9 |
| Last 30 days | 95.5 +2.6 |
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