Viewing archive of Wednesday, 10 June 2026
Solar activity report
Report of Solar-Geophysical Activity 2026 Jun 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 161 Issued at 2200Z on 10 Jun 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 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 and a slight chance for an X-class flare on
days one, two, and three (11 Jun, 12 Jun, 13 Jun).
IIA. Geophysical Activity Summary 09-2100Z to 10-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 482 km/s at 09/2102Z. Total IMF reached 8
nT at 10/1802Z. The maximum southward component of Bz reached -5 nT at
10/1036Z. Electrons greater than 2 MeV at geosynchronous orbit remained
below threshold of 1,000 pfu during the period.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (11 Jun, 13
Jun) and quiet to active levels on day two (12 Jun).
III. Event Probabilities 11 Jun to 13 Jun
| Class M | 40% | 40% | 40% |
| Class X | 10% | 10% | 10% |
| Proton | 05% | 05% | 05% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Jun 124 Predicted 11 Jun-13 Jun 130/128/128 90 Day Mean 10 Jun 125
V. Geomagnetic A Indices
Observed Afr/Ap 09 Jun 010/011 Estimated Afr/Ap 10 Jun 007/008 Predicted Afr/Ap 11 Jun-13 Jun 010/012-013/015-010/012
VI. Geomagnetic Activity Probabilities 11 Jun to 13 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 35% | 30% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 30% | 30% | 35% |
| Major-severe storm | 35% | 45% | 35% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/06/03 | X1.0 |
| Last M-flare | 2026/06/06 | M1.8 |
| Last geomagnetic storm | 2026/06/05 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| May 2026 | 101.4 +22.1 |
| June 2026 | 133.8 +32.4 |
| Last 30 days | 108.1 +14.5 |
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