Viewing archive of Friday, 13 June 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 Jun 13 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 164 Issued at 2200Z on 13 Jun 2014IA. Analysis of Solar Active Regions and Activity from 12-2100Z to 13-2100Z Solar activity has been at moderate levels for the past 24
hours. The largest solar event of the period was a M3 event observed at
12/2216Z from Region 2085 (S20W58). There are currently 11 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 (14 Jun, 15
Jun, 16 Jun).
IIA. Geophysical Activity Summary 12-2100Z to 13-2100Z
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 398 km/s at
12/2107Z. Total IMF reached 8 nT at 13/1327Z. The maximum southward
component of Bz reached -6 nT at 13/1213Z. Electrons greater than 2 MeV
at geosynchronous orbit reached a peak level of 227 pfu.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (14 Jun), quiet to unsettled
levels on day two (15 Jun) and quiet levels on day three (16 Jun).
Protons have a chance of crossing threshold on days one, two, and three
(14 Jun, 15 Jun, 16 Jun).
III. Event Probabilities 14 Jun to 16 Jun
| Class M | 70% | 70% | 70% |
| Class X | 30% | 30% | 30% |
| Proton | 30% | 30% | 30% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 13 Jun 153 Predicted 14 Jun-16 Jun 150/140/135 90 Day Mean 13 Jun 139
V. Geomagnetic A Indices
Observed Afr/Ap 12 Jun 005/005 Estimated Afr/Ap 13 Jun 006/008 Predicted Afr/Ap 14 Jun-16 Jun 016/020-009/010-007/008
VI. Geomagnetic Activity Probabilities 14 Jun to 16 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 35% | 20% | 15% |
| Minor storm | 25% | 05% | 05% |
| Major-severe storm | 05% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 10% | 25% |
| Major-severe storm | 25% | 05% | 20% |
All times in UTC
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