Viewing archive of Friday, 27 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 27 2200 UTCPrepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 178 Issued at 2200Z on 27 Jun 2014IA. Analysis of Solar Active Regions and Activity from 26-2100Z to 27-2100Z Solar activity has been at low levels for the past 24 hours.
The largest solar event of the period was a C1 event observed at
27/0114Z. There are currently 6 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a chance for a C-class flares on day one (28 Jun) and likely to be
low with a slight chance for an M-class flare on days two and three (29
Jun, 30 Jun).
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 379 km/s at
27/2034Z.
IIB. Geophysical Activity Forecast
The geomagnetic field is expected
to be at quiet to active levels on day one (28 Jun), quiet to unsettled
levels on day two (29 Jun) and quiet levels on day three (30 Jun).
III. Event Probabilities 28 Jun to 30 Jun
| Class M | 05% | 10% | 15% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green | ||
IV. Penticton 10.7 cm Flux
Observed 27 Jun 104 Predicted 28 Jun-30 Jun 110/120/130 90 Day Mean 27 Jun 133
V. Geomagnetic A Indices
Observed Afr/Ap 26 Jun 007/005 Estimated Afr/Ap 27 Jun 006/008 Predicted Afr/Ap 28 Jun-30 Jun 012/012-008/008-006/005
VI. Geomagnetic Activity Probabilities 28 Jun to 30 Jun
| A. Middle Latitudes | |||
|---|---|---|---|
| Active | 25% | 20% | 05% |
| Minor storm | 05% | 05% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes | |||
|---|---|---|---|
| Active | 15% | 15% | 15% |
| Minor storm | 20% | 20% | 10% |
| Major-severe storm | 20% | 20% | 05% |
All times in UTC
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