Viewing archive of Wednesday, 25 July 2007
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 2007 Jul 25 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 206 Issued at 2200Z on 25 Jul 2007IA. Analysis of Solar Active Regions and Activity from 24-2100Z to 25-2100Z Solar activity was very low. The visible disk remains
spotless.
IB. Solar Activity Forecast
Solar activity is expected to remain
very low.
IIA. Geophysical Activity Summary 24-2100Z to 25-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be unsettled to active for 26 July as a coronal hole
high speed stream becomes geoeffective. On 27 July the geomagnetic
field is expected to be quiet to unsettled before abating to quiet
on 28 July.
III. Event Probabilities 26 Jul to 28 Jul
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 25 Jul 069 Predicted 26 Jul-28 Jul 068/068/070 90 Day Mean 25 Jul 074
V. Geomagnetic A Indices
Observed Afr/Ap 24 Jul 002/002 Estimated Afr/Ap 25 Jul 005/005 Predicted Afr/Ap 26 Jul-28 Jul 010/015-005/005-005/005
VI. Geomagnetic Activity Probabilities 26 Jul to 28 Jul
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 10% | 10% |
| Minor storm | 15% | 05% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 15% |
| Minor storm | 15% | 10% | 05% |
| Major-severe storm | 10% | 05% | 01% |
Latest news
Friday, 10 May 2024
Coronal mass ejection impact, Severe G4 geomagnetic storm possible!
Friday, 10 May 2024
CME impact imminent, Two more earth-directed CMEs
Thursday, 9 May 2024
Severe G4 geomagnetic storm watch
Latest forum messages
Geomagnetic storming, CMEs from AR 13664, 2024-05-09/10 448AR3664 711Tell me if this is a record level of traffic or not 4Is there any truth to this "Internet/Electrical Grid Apocalypse"? 115Space Weather Memes 351
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 | 2024/05/10 | X3.8 |
| Last M-flare | 2024/05/10 | M5.8 |
| Last geomagnetic storm | 2024/05/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 138 +1.5 |
| Last 30 days | 167.9 +77.8 |