Status Report

NOAA SEC Report of Solar-Geophysical Activity 29 May 2001

By SpaceRef Editor
May 29, 2001
Filed under , ,
:Product: Report of Solar-Geophysical Activity
:Issued: 2001 May 29 2200 UT
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
#Space Environment Center and the U.S. Air Force.
#
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 149 Issued at 2200Z on 29 May 2001
IA.  Analysis of Solar Active Regions and Activity from  28/2100Z
to 29/2100Z:  Solar activity has been low.  Region 9475 (N18E34)
produced the only minor C-class events.  This region has doubled its
growth since yesterday with an area of 100 millionths and has
developed a delta configuration within the trailing portion of the
spot group.
IB.  Solar Activity Forecast:  Solar activity is expected to be low. 
Additional C-class flares are likely.
IIA.  Geophysical Activity Summary 28/2100Z to 29/2100Z:
The geomagnetic field has been quiet to active.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled for the forecast period.
III.  Event Probabilities 30 May-01 Jun
Class M    20/20/20
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           29 May 139
Predicted   30 May-01 Jun  135/135/135
90 Day Mean        29 May 169
V.  Geomagnetic A Indices
Observed Afr/Ap 28 May  014/018
Estimated Afr/Ap 29 May  010/012
Predicted Afr/Ap 30 May-01 Jun  008/010-008/010-008/010
VI.  Geomagnetic Activity Probabilities 30 May-01 Jun
A.  Middle Latitudes
Active                15/15/15
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                20/20/20
Minor storm           05/05/05
Major-severe storm    01/01/01

SpaceRef staff editor.