Status Report

NOAA SEC Report of Solar-Geophysical Activity 19 Feb 2001

By SpaceRef Editor
February 19, 2001
Filed under ,
:Product: Report of Solar-Geophysical Activity
:Issued: 2001 Feb 19 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 050 Issued at 2200Z on 19 Feb 2001
IA.  Analysis of Solar Active Regions and Activity from  18/2100Z
to 19/2100Z:  Solar activity was low.  A C5 X-ray event with no
optical correlation occurred at 19/2100Z.  Minor growth was observed
in Regions 9354 (S09W06) and 9358 (S08E33).  No new regions were
numbered today.
IB.  Solar Activity Forecast:  Solar activity is expected to be low.
IIA.  Geophysical Activity Summary 18/2100Z to 19/2100Z:
The geomagnetic field was quiet to unsettled.
IIB.  Geophysical Activity Forecast:  The geomagnetic field is
expected to be quiet to unsettled.
III.  Event Probabilities 20 Feb-22 Feb
Class M    15/15/15
Class X    01/01/01
Proton     01/01/01
PCAF       green
IV.  Penticton 10.7 cm Flux
Observed           19 Feb 137
Predicted   20 Feb-22 Feb  140/145/145
90 Day Mean        19 Feb 169
V.  Geomagnetic A Indices
Observed Afr/Ap 18 Feb  002/004
Estimated Afr/Ap 19 Feb  005/005
Predicted Afr/Ap 20 Feb-22 Feb  005/005-005/005-005/005
VI.  Geomagnetic Activity Probabilities 20 Feb-22 Feb
A.  Middle Latitudes
Active                20/20/20
Minor storm           05/05/05
Major-severe storm    01/01/01
B.  High Latitudes
Active                25/25/25
Minor storm           10/10/10
Major-severe storm    01/01/01

SpaceRef staff editor.