Viewing archive of Tuesday, 10 March 2026
Solar activity report
Report of Solar-Geophysical Activity 2026 Mar 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 69 Issued at 2200Z on 10 Mar 2026IA. Analysis of Solar Active Regions and Activity from 09-2100Z to 10-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 5 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 (11
Mar, 12 Mar, 13 Mar).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 532 km/s at 10/2100Z. Total IMF reached 9
nT at 10/1835Z. The maximum southward component of Bz reached -7 nT at
10/1554Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1726 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (11 Mar) and quiet levels on
days two and three (12 Mar, 13 Mar).
III. Event Probabilities 11 Mar to 13 Mar
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Mar 127 Predicted 11 Mar-13 Mar 125/120/115 90 Day Mean 10 Mar 143
V. Geomagnetic A Indices
Observed Afr/Ap 09 Mar 005/007 Estimated Afr/Ap 10 Mar 013/015 Predicted Afr/Ap 11 Mar-13 Mar 011/010-005/005-006/005
VI. Geomagnetic Activity Probabilities 11 Mar to 13 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 10% | 10% |
| Minor storm | 10% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 20% | 20% |
| Major-severe storm | 40% | 10% | 10% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/06/02 | M3.3 |
| 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 |
| June 2026 | 139.5 +60.2 |
| Last 30 days | 97.8 +5.2 |
