Solar activity report
Below you'll find a daily report brought to you by the NOAA about the solar activity and auroral activity during the past day and the prediction for the coming days. This page is daily updated around midnight.
Report of Solar-Geophysical Activity 2017 Jun 26 2200 UTC
Prepared by the NOAA © SWPC and processed by SpaceWeatherLive.com
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 177 Issued at 2200Z on 26 Jun 2017
IA. Analysis of Solar Active Regions and Activity from 25-2100Z to 26-2100Z
Solar activity has been at very low levels for the past 24
hours. There are currently 1 numbered sunspot regions on the disk.
IB. Solar Activity Forecast
Solar activity is expected to be very low
with a slight chance for a C-class flare on days one, two, and three (27
Jun, 28 Jun, 29 Jun).
IIA. Geophysical Activity Summary 25-2100Z to 26-2100Z
The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 611 km/s at 26/1310Z. Total IMF reached 7
nT at 25/2237Z. The maximum southward component of Bz reached -5 nT at
26/0307Z. 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 levels on days one and two (27 Jun, 28 Jun) and quiet to
unsettled levels on day three (29 Jun).
III. Event Probabilities 27 Jun to 29 Jun
| Class M | 01% | 01% | 01% |
| Class X | 01% | 01% | 01% |
| Proton | 01% | 01% | 01% |
| PCAF | green
|
IV. Penticton 10.7 cm Flux
Observed 26 Jun 074
Predicted 27 Jun-29 Jun 075/075/077
90 Day Mean 26 Jun 077
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jun 011/012
Estimated Afr/Ap 26 Jun 007/008
Predicted Afr/Ap 27 Jun-29 Jun 006/005-006/005-008/010
VI. Geomagnetic Activity Probabilities 27 Jun to 29 Jun
| A. Middle Latitudes |
|---|
| Active | 05% | 05% | 15% |
| Minor storm | 01% | 01% | 01% |
| Major-severe storm | 01% | 01% | 01% |
| B. High Latitudes |
|---|
| Active | 15% | 15% | 15% |
| Minor storm | 10% | 10% | 25% |
| Major-severe storm | 05% | 05% | 20% |
