Viewing archive of Sunday, 28 March 2010
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 2010 Mar 28 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 087 Issued at 2200Z on 28 Mar 2010IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z Solar activity was very low. Region 1057 (N15E04)
remained at a Beta magnetic classification while growing in size.
Region 1059 (S22E61), now a Hax Alpha spot has increased in size as
well.
IB. Solar Activity Forecast
Solar activity is expected to be low
with C-class flares expected and a slight chance for a M-class flare
over the next 3 days (29-31 March).
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
The geomagnetic field was quiet with an isolated period of unsettled
to active conditions between 03-06Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to remain mostly quiet for day 1 (29 March), with brief
periods of unsettled to active conditions possible days 2-3 (30-31
March) due to brief periods of Bz south with slightly elevated solar
wind speeds.
III. Event Probabilities 29 Mar to 31 Mar
| Class M | 20% | 20% | 20% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 28 Mar 086 Predicted 29 Mar-31 Mar 088/088/088 90 Day Mean 28 Mar 083
V. Geomagnetic A Indices
Observed Afr/Ap 27 Mar 001/003 Estimated Afr/Ap 28 Mar 005/007 Predicted Afr/Ap 29 Mar-31 Mar 005/007-007/007-007/007
VI. Geomagnetic Activity Probabilities 29 Mar to 31 Mar
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 20% | 25% | 25% |
| Minor storm | 05% | 10% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 30% | 40% | 40% |
| Minor storm | 10% | 15% | 15% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
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