Viewing archive of Wednesday, 1 August 2012
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 2012 Aug 01 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 01 Aug 2012IA. Analysis of Solar Active Regions and Activity from 31-2100Z to 01-2100Z
Solar activity was low. Regions 1528 (N17W56), 1532
(S19W14), 1535 (N18E37), 1536 (S22W01), and 1538 (S22E54) all
produced low level C-class flares. Region 1536 is the most
magnetically complex group on the visible disk with a weak
Beta-gamma configuration. No Earth-directed coronal mass ejections
(CMEs) were observed during the reporting period.
IB. Solar Activity Forecast
Solar activity is expected to continue
at low levels with a chance for M-class flares.
IIA. Geophysical Activity Summary 31-2100Z to 01-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled with isolated active periods
possible on day 1 (02 August) due to effects from the 28 July CME.
Quiet to unsettled conditions are expected on day 2 (03 August).
Mostly quiet conditions are expected on day 3 (04 August).
III. Event Probabilities 02 Aug to 04 Aug
| Class M | 35% | 35% | 35% |
| Class X | 05% | 05% | 05% |
| Proton | 05% | 05% | 05% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 01 Aug 150 Predicted 02 Aug-04 Aug 155/155/150 90 Day Mean 01 Aug 127
V. Geomagnetic A Indices
Observed Afr/Ap 31 Jul 005/006 Estimated Afr/Ap 01 Aug 005/006 Predicted Afr/Ap 02 Aug-04 Aug 008/010-007/008-006/005
VI. Geomagnetic Activity Probabilities 02 Aug to 04 Aug
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 15% | 05% |
| Minor storm | 10% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 25% | 20% | 15% |
| Major-severe storm | 30% | 20% | 05% |
All times in UTC
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
AR4048 97Temporary Topic - Ongoing Solar Proton Events 14Unspecified geomagnetic activity 2188AR4046 156We are launching a dating app! SpaceWeatherLove! Download it today! 7
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 | 2025/04/01 | M2.5 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| April 2025 | 147 -7.6 |
| Last 30 days | 129.8 -18.9 |