Viewing archive of Saturday, 12 June 2004
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 2004 Jun 12 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 164 Issued at 2200Z on 12 Jun 2004IA. Analysis of Solar Active Regions and Activity from 11-2100Z to 12-2100Z Solar activity was low. Two C1 flares occurred, at
12/1841 UTC and 12/1943 UTC, in a new unnumbered region rotating
onto the disk near NE12. Other disk regions were quiet.
IB. Solar Activity Forecast
Solar activity is expected to be low.
A C-class flare is possible in Region 631 (S10E02) or in the new
Region rotating onto the disk near NE12. Sunspots associated with
the new active region are expected to rotate into view by tomorrow.
IIA. Geophysical Activity Summary 11-2100Z to 12-2100Z
The geomagnetic field was quiet to unsettled.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled.
III. Event Probabilities 13 Jun to 15 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 12 Jun 088 Predicted 13 Jun-15 Jun 085/085/085 90 Day Mean 12 Jun 102
V. Geomagnetic A Indices
Observed Afr/Ap 11 Jun 014/010 Estimated Afr/Ap 12 Jun 010/008 Predicted Afr/Ap 13 Jun-15 Jun 010/010-010/010-015/015
VI. Geomagnetic Activity Probabilities 13 Jun to 15 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 25% |
| Minor storm | 05% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 30% | 30% |
| Minor storm | 15% | 15% | 15% |
| Major-severe storm | 05% | 05% | 05% |
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