IA. Analysis of Solar Active Regions and Activity from 27/2100Z
to 28/2100Z: Solar activity continued to be very low. The disk is
spotless and no flares occurred.
IB. Solar Activity Forecast: Solar activity is expected to remain
very low.
IIA. Geophysical Activity Summary 27/2100Z to 28/2100Z:
The geomagnetic field was quiet to mildly unsettled. A sudden impulse
measuring 33 nT at Boulder occurred at 0520 UTC, bringing unsettled
conditions in its wake. The source of this impulse is of dubious
origin.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be quiet throughout the forecast period.
III. Event Probabilities 29 May-31 May
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 28 May 068
Predicted 29 May-31 May 068/068/068
90 Day Mean 28 May 069
V. Geomagnetic A Indices
Observed Afr/Ap 27 May 002/003
Estimated Afr/Ap 28 May 005/005
Predicted Afr/Ap 29 May-31 May 005/005-005/005-005/005
VI. Geomagnetic Activity Probabilities 29 May-31 May
A. Middle Latitudes
Active 15/10/10
Minor storm 01/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 15/15/10
Minor storm 01/01/01
Major-severe storm 01/01/01
 

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