Viewing archive of Sunday, 22 June 2008
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 2008 Jun 22 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 174 Issued at 2200Z on 22 Jun 2008IA. Analysis of Solar Active Regions and Activity from 21-2100Z to 22-2100Z Solar activity was at very low levels. No flares were
observed during the period.
IB. Solar Activity Forecast
Solar activity is expected to remain
at very low levels.
IIA. Geophysical Activity Summary 21-2100Z to 22-2100Z
The geomagnetic field was quiet. Solar wind velocities gradually
decayed from a peak of about 500 km/s at the beginning of the period
to near 400 km/s at forecast issue time. The greater than 2 MeV
electron flux at geosynchronous orbit reached high levels today.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at mostly quiet levels for days one and two (23 and
24 June). Activity is expected to increase to quiet to unsettled
conditions on day three (25 June) due to a recurrent coronal hole
high speed stream that will rotate into a geoeffective position.
III. Event Probabilities 23 Jun to 25 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 22 Jun 065 Predicted 23 Jun-25 Jun 065/065/065 90 Day Mean 22 Jun 070
V. Geomagnetic A Indices
Observed Afr/Ap 21 Jun 004/005 Estimated Afr/Ap 22 Jun 005/005 Predicted Afr/Ap 23 Jun-25 Jun 005/005-005/005-008/008
VI. Geomagnetic Activity Probabilities 23 Jun to 25 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 25% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 05% |
All times in UTC
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