Viewing archive of Tuesday, 2 August 2022
Solar activity report
Report of Solar-Geophysical Activity 2022 Aug 02 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 214 Issued at 2200Z on 02 Aug 2022IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C4 event observed at
02/1533Z. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares and a slight chance for an M-class
flare on days one, two, and three (03 Aug, 04 Aug, 05 Aug).
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 536 km/s at 02/1926Z. Total IMF reached 8
nT at 02/1145Z. The maximum southward component of Bz reached -6 nT at
02/1012Z. Electrons greater than 2 MeV at geosynchronous orbit reached
a peak level of 390 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (03 Aug), quiet to unsettled
levels on day two (04 Aug) and quiet levels on day three (05 Aug).
III. Event Probabilities 03 Aug to 05 Aug
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Aug 098 Predicted 03 Aug-05 Aug 100/098/098 90 Day Mean 02 Aug 125
V. Geomagnetic A Indices
Observed Afr/Ap 01 Aug 008/008 Estimated Afr/Ap 02 Aug 009/011 Predicted Afr/Ap 03 Aug-05 Aug 010/012-008/008-006/005
VI. Geomagnetic Activity Probabilities 03 Aug to 05 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 15% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 15% |
| Minor storm | 25% | 25% | 25% |
| Major-severe storm | 45% | 30% | 20% |
All times in UTC
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/04 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 118.8 +32.8 |
| Last 30 days | 102.1 +47 |
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