Viewing archive of Wednesday, 28 April 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 Apr 28 2201 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 118 Issued at 2200Z on 28 Apr 2010IA. Analysis of Solar Active Regions and Activity from 27-2100Z to 28-2100Z
Solar activity was very low. New Region 1063 (N16E14)
was numbered today and is magnetically classified as a Beta group.
No flares were observed during the past 24 hours.
IB. Solar Activity Forecast
Solar activity is expected to be very
low.
IIA. Geophysical Activity Summary 27-2100Z to 28-2100Z
The geomagnetic field was quiet.
IIB. Geophysical Activity Forecast
The geomagnetic field is
expected to be predominantly quiet for the next three days (29 April
- 01 May).
III. Event Probabilities 29 Apr to 01 May
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 28 Apr 076 Predicted 29 Apr-01 May 076/076/076 90 Day Mean 28 Apr 081
V. Geomagnetic A Indices
Observed Afr/Ap 27 Apr 003/004 Estimated Afr/Ap 28 Apr 004/004 Predicted Afr/Ap 29 Apr-01 May 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 29 Apr to 01 May
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 05% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Iqaluit, NUNuuk
Tórshavn
Reykjavik
Trondheim
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