IA. Analysis of Solar Active Regions and Activity from 18/2100Z
to 19/2100Z: Solar activity was very low. No flares occurred during
the past 24 hours. Region 999 (S03E20) was quiet and stable.
IB. Solar Activity Forecast: Solar activity is expected to remain
very low.
IIA. Geophysical Activity Summary 18/2100Z to 19/2100Z:
The geomagnetic field was mostly quiet. Solar wind velocity observed
at ACE showed a steady decline during the past 24 hours, with day
end speeds around 450 km/s. The greater than 2 MeV electron flux at
geosynchronous orbit was at high levels.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet to unsettled on the first day (20 June), and is
expected to be predominantly quiet for second and third days (20-21
June).
III. Event Probabilities 20 Jun-22 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 19 Jun 065
Predicted 20 Jun-22 Jun 065/065/065
90 Day Mean 19 Jun 070
V. Geomagnetic A Indices
Observed Afr/Ap 18 Jun 008/009
Estimated Afr/Ap 19 Jun 005/005
Predicted Afr/Ap 20 Jun-22 Jun 008/008-005/005-005/005
VI. Geomagnetic Activity Probabilities 20 Jun-22 Jun
A. Middle Latitudes
Active 25/10/10
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 25/10/10
Minor storm 10/05/05
Major-severe storm 05/01/01
 

NOAA Space Weather Scale descriptions can be found at www.sec.noaa.gov/NOAAscales