Viewing archive of Tuesday, 1 July 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Jul 01 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 182 Issued at 2200Z on 01 Jul 2025IA. Analysis of Solar Active Regions and Activity from 30-2100Z to 01-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 10 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be low with a
slight chance for an M-class flare on days one, two, and three (02 Jul,
03 Jul, 04 Jul).
IIA. Geophysical Activity Summary 30-2100Z to 01-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 873 km/s at 01/0729Z. Total IMF reached 6
nT at 30/2334Z. The maximum southward component of Bz reached -5 nT at
30/2223Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 3574 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at unsettled to minor storm levels on day one (02 Jul), quiet to
minor storm levels on day two (03 Jul) and quiet to unsettled levels on
day three (04 Jul).
III. Event Probabilities 02 Jul to 04 Jul
| Class M | 20% | 15% | 15% |
| Class X | 05% | 01% | 01% |
| Proton | 05% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Jul 126 Predicted 02 Jul-04 Jul 128/128/130 90 Day Mean 01 Jul 142
V. Geomagnetic A Indices
Observed Afr/Ap 30 Jun 011/ 009 Estimated Afr/Ap 01 Jul 009/010 Predicted Afr/Ap 02 Jul-04 Jul 023/032-015/020-010/012
VI. Geomagnetic Activity Probabilities 02 Jul to 04 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 40% | 35% |
| Minor storm | 30% | 25% | 15% |
| Major-severe storm | 15% | 05% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 10% | 10% |
| Minor storm | 20% | 20% | 25% |
| Major-severe storm | 70% | 65% | 50% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/02/03 | X1.5 |
| Last M-flare | 2026/02/03 | M2.5 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| February 2026 | 114 -10 |
| Last 30 days | 118.1 +6.2 |