Viewing archive of Friday, 10 July 2026
Solar activity report
Report of Solar-Geophysical Activity 2026 Jul 10 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 191 Issued at 2200Z on 10 Jul 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 4 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 Jul, 12 Jul, 13 Jul).
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 682 km/s at 10/1303 UTC. Total IMF reached
12 nT at 10/0947 UTC. The maximum southward component of Bz reached -9
nT at 10/0939 UTC. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 2028 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one and three (11 Jul, 13
Jul) and quiet to minor storm levels on day two (12 Jul).
III. Event Probabilities 11 Jul to 13 Jul
| Class M | 30% | 30% | 30% |
| Class X | 10% | 10% | 10% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 10 Jul 107 Predicted 11 Jul-13 Jul 105/105/110 90 Day Mean 10 Jul 132
V. Geomagnetic A Indices
Observed Afr/Ap 09 Jul 015/016 Estimated Afr/Ap 10 Jul 011/014 Predicted Afr/Ap 11 Jul-13 Jul 008/012-016/024-010/010
VI. Geomagnetic Activity Probabilities 11 Jul to 13 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 35% | 20% |
| Minor storm | 05% | 10% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 20% | 15% |
| Major-severe storm | 10% | 35% | 10% |
All times in UTC
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AR14482 73Current Farside Activity 704Unspecified geomagnetic activity 348AR4485 31Incoming & Unnumbered Active Regions 535
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Space weather facts
| Last X-flare | 2026/07/04 | X1.3 |
| Last M-flare | 2026/07/12 | M1.2 |
| Last geomagnetic storm | 2026/07/04 | Kp7+ (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| June 2026 | 94.4 -7.1 |
| July 2026 | 91.7 -2.7 |
| Last 30 days | 90 -18.9 |
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