Viewing archive of Monday, 23 January 2006
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 2006 Jan 23 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 023 Issued at 2200Z on 23 Jan 2006IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity remained at low levels today. Region
848 (S19W28) produced multiple B and C-class flares during the
period. The magnetic delta spot seen yesterday has decayed and the
sunspot group is now classified a beta-gamma. Region 850 (N06W05)
was numbered today.
IB. Solar Activity Forecast
Solar activity is expected to be at
very low to low levels. Region 848 remains capable of producing an
isolated C-class flare.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field was at quiet to active levels. An isolated
period of minor storming occurred at the Boulder magnetometer
between 23/0900 and 1200Z. The elevated conditions are due to a
recurrent high speed coronal hole stream. The solar wind speeds
increased from near 400 km/sec to over 600 km/sec, between 23/0600
and 1200Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be at predominantly unsettled levels. Isolated active
periods are possible on 24 and 25 January due to the coronal hole
high speed stream. A return to quiet to unsettled levels is expected
on 25 January as the coronal hole moves out of geoeffective
position.
III. Event Probabilities 24 Jan to 26 Jan
| Class M | 15% | 15% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Jan 092 Predicted 24 Jan-26 Jan 090/090/090 90 Day Mean 23 Jan 086
V. Geomagnetic A Indices
Observed Afr/Ap 22 Jan 004/006 Estimated Afr/Ap 23 Jan 012/015 Predicted Afr/Ap 24 Jan-26 Jan 012/015-008/012-005/008
VI. Geomagnetic Activity Probabilities 24 Jan to 26 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 30% | 20% | 15% |
| Minor storm | 10% | 05% | 01% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 35% | 30% | 20% |
| Minor storm | 15% | 10% | 05% |
| Major-severe storm | 10% | 05% | 01% |
All times in UTC
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