Solar activity report
Below you'll find a daily report brought to you by the NOAA about the solar activity and auroral activity during the past day and the prediction for the coming days. This page is daily updated around midnight.
Report of Solar-Geophysical Activity 2026 May 08 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 128 Issued at 2200Z on 08 May 2026IA. Analysis of Solar Active Regions and Activity from 07-2100Z to 08-2100Z Solar activity has been at low levels for the past 24 hours.
There are currently 5 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 (09 May, 10 May, 11 May).
IIA. Geophysical Activity Summary 07-2100Z to 08-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 606 km/s at 08/1133Z. Total IMF reached 19
nT at 08/0146Z. The maximum southward component of Bz reached -12 nT at
08/0749Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 452 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to unsettled levels on days one, two, and three (09 May,
10 May, 11 May).
III. Event Probabilities 09 May to 11 May
| Class M | 45% | 45% | 45% |
| Class X | 10% | 10% | 10% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 08 May 120 Predicted 09 May-11 May 125/125/120 90 Day Mean 08 May 126
V. Geomagnetic A Indices
Observed Afr/Ap 07 May 006/007 Estimated Afr/Ap 08 May 011/014 Predicted Afr/Ap 09 May-11 May 009/010-006/006-009/008
VI. Geomagnetic Activity Probabilities 09 May to 11 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 20% | 20% |
| Minor storm | 05% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 20% |
| Minor storm | 30% | 30% | 30% |
| Major-severe storm | 25% | 30% | 25% |
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Space weather facts
| Last X-flare | 2026/04/24 | X2.5 |
| Last M-flare | 2026/05/07 | M2.6 |
| Last geomagnetic storm | 2026/05/05 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2026 | 79.3 -6.6 |
| May 2026 | 122.1 +42.8 |
| Last 30 days | 91.9 -9.4 |
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