Viewing archive of Thursday, 3 July 2025
Solar activity report
Report of Solar-Geophysical Activity 2025 Jul 03 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 184 Issued at 2200Z on 03 Jul 2025IA. Analysis of Solar Active Regions and Activity from 02-2100Z to 03-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 8 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 (04
Jul, 05 Jul, 06 Jul).
IIA. Geophysical Activity Summary 02-2100Z to 03-2100Z
The geomagnetic
field has been at quiet to active levels for the past 24 hours. Solar
wind speed reached a peak of 411 km/s at 03/1025Z. Total IMF reached 14
nT at 03/0908Z. The maximum southward component of Bz reached -12 nT at
03/1220Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 1219 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (04 Jul) and quiet to
unsettled levels on days two and three (05 Jul, 06 Jul).
III. Event Probabilities 04 Jul to 06 Jul
| Class M | 20% | 20% | 20% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 03 Jul 125 Predicted 04 Jul-06 Jul 130/132/135 90 Day Mean 03 Jul 141
V. Geomagnetic A Indices
Observed Afr/Ap 02 Jul 008/014 Estimated Afr/Ap 03 Jul 014/018 Predicted Afr/Ap 04 Jul-06 Jul 011/012-009/010-008/008
VI. Geomagnetic Activity Probabilities 04 Jul to 06 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 15% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 20% |
| Minor storm | 25% | 30% | 25% |
| Major-severe storm | 50% | 25% | 20% |
All times in UTC
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| Last M-flare | 2026/02/08 | M2.8 |
| Last geomagnetic storm | 2026/02/05 | Kp5+ (G1) |
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| Monthly mean Sunspot Number | |
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