Viewing archive of Wednesday, 5 February 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 Feb 05 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 36 Issued at 2200Z on 05 Feb 2014IA. Analysis of Solar Active Regions and Activity from 04-2100Z to 05-2100Z 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
05/1620Z from Region 1967 (S12W38). There are currently 8 numbered
sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be moderate
with a chance for X-class flares on days one, two, and three (06 Feb, 07
Feb, 08 Feb).
IIA. Geophysical Activity Summary 04-2100Z to 05-2100Z
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 450 km/s at
05/2054Z. Total IMF reached 11 nT at 05/0541Z. The maximum southward
component of Bz reached -6 nT at 05/2048Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet levels on days one and two (06 Feb, 07 Feb) and quiet to
active levels on day three (08 Feb). Protons have a slight chance of
crossing threshold on days one, two, and three (06 Feb, 07 Feb, 08 Feb).
III. Event Probabilities 06 Feb to 08 Feb
| Class M | 80% | 80% | 80% |
| Class X | 25% | 25% | 25% |
| Proton | 10% | 10% | 10% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 05 Feb 194 Predicted 06 Feb-08 Feb 198/195/190 90 Day Mean 05 Feb 154
V. Geomagnetic A Indices
Observed Afr/Ap 04 Feb 004/003 Estimated Afr/Ap 05 Feb 004/005 Predicted Afr/Ap 06 Feb-08 Feb 006/005-006/005-008/012
VI. Geomagnetic Activity Probabilities 06 Feb to 08 Feb
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 05% | 05% | 20% |
| Minor storm | 01% | 01% | 05% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 15% | 15% | 20% |
| Major-severe storm | 05% | 05% | 25% |
All times in UTC
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