IA. Analysis of Solar Active Regions and Activity from 21/2100Z
to 22/2100Z: Solar activity was very low. No flares were observed
during the last 24 hours.
IB. Solar Activity Forecast: Solar activity is expected to remain
very low during the forecast period (23-25 April).
IIA. Geophysical Activity Summary 21/2100Z to 22/2100Z:
The geomagnetic field was quiet during the last 24 hours.
IIB. Geophysical Activity Forecast: The geomagnetic field will be
predominately quiet with isolated unsettled conditions on day one
(23 April). Quiet levels are expected for days two and three (24-25
April) as the effects of the coronal hole high speed stream
diminish.
III. Event Probabilities 23 Apr-25 Apr
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 22 Apr 076
Predicted 23 Apr-25 Apr 078/078/080
90 Day Mean 22 Apr 082
V. Geomagnetic A Indices
Observed Afr/Ap 21 Apr 004/006
Estimated Afr/Ap 22 Apr 004/005
Predicted Afr/Ap 23 Apr-25 Apr 007/008-005/006-005/005
VI. Geomagnetic Activity Probabilities 23 Apr-25 Apr
A. Middle Latitudes
Active 20/05/05
Minor storm 05/01/01
Major-severe storm 01/00/00
B. High Latitudes
Active 25/10/05
Minor storm 05/05/01
Major-severe storm 01/01/00
 

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