Viewing archive of Sunday, 23 March 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 Mar 23 2203 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 083 Issued at 2200Z on 23 Mar 2008IA. Analysis of Solar Active Regions and Activity from 22-2100Z to 23-2100Z Solar activity was very low. New Region 987 (S08E50)
was numbered today. It grew into a Cso type with four spots and a
Beta magnetic configuration before decaying to a plage region.
IB. Solar Activity Forecast
Solar activity is expected to be
predominantly very low. There is a slight chance of a C-class flare
from Region 987.
IIA. Geophysical Activity Summary 22-2100Z to 23-2100Z
The geomagnetic field ranged from quiet to unsettled levels.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be quiet to unsettled on day 1 (24 March). Unsettled to
active conditions are expected on days 2 and 3 (25-26 March),
occasionally reaching minor to major storm levels at high latitudes,
in response to a geoeffective coronal hole high speed stream.
III. Event Probabilities 24 Mar to 26 Mar
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | Green | ||
IV. Penticton 10.7 cm Flux
Observed 23 Mar 072 Predicted 24 Mar-26 Mar 072/072/072 90 Day Mean 23 Mar 072
V. Geomagnetic A Indices
Observed Afr/Ap 22 Mar 004/005 Estimated Afr/Ap 23 Mar 008/008 Predicted Afr/Ap 24 Mar-26 Mar 005/008-010/015-020/020
VI. Geomagnetic Activity Probabilities 24 Mar to 26 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 10% | 15% | 25% |
| Minor storm | 05% | 10% | 15% |
| Major-severe storm | 01% | 05% | 10% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 25% | 40% |
| Minor storm | 05% | 10% | 15% |
| Major-severe storm | 01% | 10% | 15% |
All times in UTC
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