Viewing archive of Saturday, 6 June 2026
Solar activity report
Report of Solar-Geophysical Activity 2026 Jun 06 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 157 Issued at 2200Z on 06 Jun 2026IA. Analysis of Solar Active Regions and Activity from 05-2100Z to 06-2100Z Solar activity has been at moderate levels for the past 24
hours. There are currently 8 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a slight chance for an X-class flare on days one, two, and three
(07 Jun, 08 Jun, 09 Jun).
IIA. Geophysical Activity Summary 05-2100Z to 06-2100Z
The geomagnetic
field has been at quiet to minor storm levels for the past 24 hours.
Solar wind speed reached a peak of 708 km/s at 05/2252Z. Total IMF
reached 7 nT at 05/2206Z. The maximum southward component of Bz reached
-6 nT at 05/2228Z. Electrons greater than 2 MeV at geosynchronous orbit
reached a peak level of 1284 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on day one (07 Jun), quiet to severe
storm levels on day two (08 Jun) and unsettled to major storm levels on
day three (09 Jun). Protons have a slight chance of crossing threshold
on day one (07 Jun), have a chance of crossing threshold on day two (08
Jun) and have a slight chance of crossing threshold on day three (09
Jun).
III. Event Probabilities 07 Jun to 09 Jun
| Class M | 55% | 55% | 55% |
| Class X | 10% | 10% | 10% |
| Proton | 15% | 25% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 06 Jun 138 Predicted 07 Jun-09 Jun 140/138/136 90 Day Mean 06 Jun 125
V. Geomagnetic A Indices
Observed Afr/Ap 05 Jun 024/036 Estimated Afr/Ap 06 Jun 017/021 Predicted Afr/Ap 07 Jun-09 Jun 010/010-028/052-026/038
VI. Geomagnetic Activity Probabilities 07 Jun to 09 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 25% |
| Minor storm | 05% | 35% | 35% |
| Major-severe storm | 01% | 50% | 30% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 05% | 05% |
| Minor storm | 30% | 10% | 15% |
| Major-severe storm | 20% | 85% | 79% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/07/04 | X1.3 |
| Last M-flare | 2026/07/20 | M3.4 |
| Last geomagnetic storm | 2026/07/04 | Kp7+ (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (1%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| June 2026 | 94.4 -7.1 |
| July 2026 | 70.7 -23.7 |
| Last 30 days | 85.6 -20.4 |
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