Viewing archive of Sunday, 19 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 19 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 19 Issued at 2200Z on 19 Jan 2014IA. Analysis of Solar Active Regions and Activity from 18-2100Z to 19-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C2 event observed at
19/0658Z from Region 1959 (S24E58). There are currently 7 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be low with
a slight chance for an M-class flare on days one, two, and three (20
Jan, 21 Jan, 22 Jan).
IIA. Geophysical Activity Summary 18-2100Z to 19-2100Z
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 329 km/s at
18/2355Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 317 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and three (20 Jan, 22 Jan) and quiet
to unsettled levels on day two (21 Jan).
III. Event Probabilities 20 Jan to 22 Jan
| Class M | 10% | 10% | 10% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 19 Jan 128 Predicted 20 Jan-22 Jan 130/130/130 90 Day Mean 19 Jan 153
V. Geomagnetic A Indices
Observed Afr/Ap 18 Jan 001/001 Estimated Afr/Ap 19 Jan 002/002 Predicted Afr/Ap 20 Jan-22 Jan 006/005-007/008-005/005
VI. Geomagnetic Activity Probabilities 20 Jan to 22 Jan
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 15% | 05% |
| Minor storm | 01% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 25% | 15% |
| Major-severe storm | 05% | 25% | 05% |
All times in UTC
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| Last M-flare | 2024/11/05 | M2.6 |
| Last geomagnetic storm | 2024/10/12 | Kp5 (G1) |
| Spotless days | |
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