Report of Solar Geophysical Activity

 

Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 152 Issued at 2200Z on 01 Jun 2015

IA.  Analysis of Solar Active Regions and Activity from 31/2100Z to
01/2100Z: Solar activity has been at very low levels for the past 24
hours. There are currently 3 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 days one, two, and three (02 Jun,
03 Jun, 04 Jun).

IIA.  Geophysical Activity Summary 31/2100Z to 01/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed, as measured by the ACE spacecraft, reached a peak speed of
398 km/s at 31/2153Z. Total IMF reached 8 nT at 31/2240Z. The maximum
southward component of Bz reached -6 nT at 31/2231Z.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on days one, two, and three (02 Jun, 03 Jun, 04
Jun).

III.  Event probabilities 02 Jun-04 Jun
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           01 Jun 100
Predicted   02 Jun-04 Jun 100/105/110
90 Day Mean        01 Jun 125

V.  Geomagnetic A Indices
Observed Afr/Ap 31 May  006/005
Estimated Afr/Ap 01 Jun  008/008
Predicted Afr/Ap 02 Jun-04 Jun  006/005-006/005-006/005

VI.  Geomagnetic Activity Probabilities 02 Jun-04 Jun
A.  Middle Latitudes
Active                10/10/10
Minor Storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/20/20
Minor Storm           20/20/20
Major-severe storm    10/10/10
For current space weather conditions please refer to:

www.swpc.noaa.gov/phenomena/solar-radiation-storm

www.sec.noaa.gov/NOAAscales