Viewing archive of Monday, 18 June 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 Jun 18 2202 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 169 Issued at 2200Z on 18 Jun 2007IA. Analysis of Solar Active Regions and Activity from 17-2100Z to 18-2100Z 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 17-2100Z to 18-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled on 19 June. Expect unsettled to
active conditions, with minor storm periods possible, on 20-21 June
as a recurrent coronal hole moves into a geoeffective position,
III. Event Probabilities 19 Jun to 21 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 18 Jun 067 Predicted 19 Jun-21 Jun 068/068/068 90 Day Mean 18 Jun 074
V. Geomagnetic A Indices
Observed Afr/Ap 17 Jun 003/006 Estimated Afr/Ap 18 Jun 003/005 Predicted Afr/Ap 19 Jun-21 Jun 008/010-012/015-015/020
VI. Geomagnetic Activity Probabilities 19 Jun to 21 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 30% |
| Minor storm | 10% | 15% | 20% |
| Major-severe storm | 01% | 05% | 10% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 25% | 30% | 35% |
| Minor storm | 15% | 20% | 25% |
| Major-severe storm | 05% | 10% | 15% |
All times in UTC
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