Viewing archive of Friday, 30 January 2015
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 2015 Jan 30 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 30 Issued at 2200Z on 30 Jan 2015IA. Analysis of Solar Active Regions and Activity from 29-2100Z to 30-2100Z
Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M2 event observed at
30/1216Z from Region 2277 (N08E47). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is likely to be moderate
with a chance for X-class flares on days one, two, and three (31 Jan, 01
Feb, 02 Feb).
IIA. Geophysical Activity Summary 29-2100Z to 30-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
466 km/s at 30/1220Z. Total IMF reached 9 nT at 29/2153Z. The maximum
southward component of Bz reached -6 nT at 30/1540Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to minor storm levels on days one and two (31 Jan, 01
Feb) and quiet to active levels on day three (02 Feb). Protons have a
chance of crossing threshold on days one, two, and three (31 Jan, 01
Feb, 02 Feb).
III. Event Probabilities 31 Jan to 02 Feb
| Class M | 70% | 70% | 70% |
| Class X | 25% | 25% | 25% |
| Proton | 25% | 25% | 25% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 30 Jan 159 Predicted 31 Jan-02 Feb 160/155/150 90 Day Mean 30 Jan 152
V. Geomagnetic A Indices
Observed Afr/Ap 29 Jan 007/008 Estimated Afr/Ap 30 Jan 011/013 Predicted Afr/Ap 31 Jan-02 Feb 014/018-012/015-010/012
VI. Geomagnetic Activity Probabilities 31 Jan to 02 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 40% | 40% | 25% |
| Minor storm | 20% | 15% | 05% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 10% | 10% | 15% |
| Minor storm | 25% | 30% | 30% |
| Major-severe storm | 60% | 50% | 30% |
All times in UTC
Currently there's no noteworthy space weather
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