Viewing archive of Monday, 27 January 2014
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 2014 Jan 27 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 27 Issued at 2200Z on 27 Jan 2014IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M1 event observed at
27/0211Z from Region 1967 (S15E75). There are currently 5 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a chance for M-class flares on days one, two, and three (28 Jan, 29 Jan,
30 Jan).
IIA. Geophysical Activity Summary 26-2100Z to 27-2100Z
The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed,
as measured by the ACE spacecraft, reached a peak speed of 385 km/s at
26/2111Z. Total IMF reached 5 nT at 27/2018Z. The maximum southward
component of Bz reached -4 nT at 27/2034Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on day one (28 Jan), quiet to unsettled levels on
day two (29 Jan) and quiet to active levels on day three (30 Jan).
III. Event Probabilities 28 Jan to 30 Jan
| Class M | 50% | 50% | 50% |
| Class X | 05% | 05% | 05% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 27 Jan 144 Predicted 28 Jan-30 Jan 150/160/170 90 Day Mean 27 Jan 151
V. Geomagnetic A Indices
Observed Afr/Ap 26 Jan 003/006 Estimated Afr/Ap 27 Jan 007/008 Predicted Afr/Ap 28 Jan-30 Jan 005/005-007/010-012/012
VI. Geomagnetic Activity Probabilities 28 Jan to 30 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 20% | 30% |
| Minor storm | 01% | 05% | 10% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 30% | 30% |
| Major-severe storm | 05% | 25% | 40% |
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