Viewing archive of Monday, 2 August 2010
Solar activity report
Any mentioned solar flare in this report has a scaling factor applied by the Space Weather Prediction Center (SWPC). Because of the SWPC scaling factor, solar flares are reported as 42% smaller than for the science quality data. The scaling factor has been removed from our archived solar flare data to reflect the true physical units.
Report of Solar-Geophysical Activity 2010 Aug 02 2201 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 2010IA. Analysis of Solar Active Regions and Activity from 01-2100Z to 02-2100Z
Solar activity was very low. Two B-class flares were
observed, one of which was produced by Region 1092 (N16E10). Region
1092 showed a minor increase in spot count during the period and was
classified as a Cho group with a beta magnetic configuration. No new
regions were assigned.
IB. Solar Activity Forecast
Solar activity is expected to be very
low. However, there will be a chance for an isolated C-class flare
from Region 1092.
IIA. Geophysical Activity Summary 01-2100Z to 02-2100Z
Geomagnetic field activity was at quiet levels. The greater than 2
MeV electron flux at geosynchronous orbit was high throughout the
period.
IIB. Geophysical Activity Forecast
Geomagnetic field activity is
expected to be at unsettled to active levels on day 1 (03 August)
due to the arrival of the first of two CMEs observed on 01 August
(this CME was associated with the long-duration C3/Sf flare at
01/0826Z). Activity is expected to be at active to minor storm
levels with a slight chance for major storm on days 2 - 3 (04 - 05
August) due to the arrival of the second slower CME observed on 01
August (associated with a large filament disappearance).
III. Event Probabilities 03 Aug to 05 Aug
| Class M | 05% | 05% | 05% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 02 Aug 079 Predicted 03 Aug-05 Aug 080/082/084 90 Day Mean 02 Aug 075
V. Geomagnetic A Indices
Observed Afr/Ap 01 Aug 002/004 Estimated Afr/Ap 02 Aug 003/005 Predicted Afr/Ap 03 Aug-05 Aug 012/012-018/022-020/025
VI. Geomagnetic Activity Probabilities 03 Aug to 05 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 40% | 50% |
| Minor storm | 05% | 20% | 25% |
| Major-severe storm | 01% | 05% | 10% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 45% | 40% |
| Minor storm | 10% | 25% | 35% |
| Major-severe storm | 01% | 10% | 15% |
All times in UTC
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Latest forum messages
Unspecified geomagnetic activity 2380AR 14079 68Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 33Short PBS episode on Aurora sounds 5New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 54
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/30 | M2.03 |
| Last geomagnetic storm | 2025/05/02 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 48.5 -92.1 |
| Last 30 days | 116.9 -13.6 |