Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 26 June 2010

By SpaceRef Editor
June 26, 2010
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2010 Jun 26 2200 UTC
# Prepared jointly by the U.S. Dept. of Commerce, NOAA,
# Space Weather Prediction Center and the U.S. Air Force.
Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 177 Issued at 2200Z on 26 Jun 2010
IA. Analysis of Solar Active Regions and Activity from 25/2100Z
to 26/2100Z: Solar activity has been very low.
IB. Solar Activity Forecast: Solar activity is expected to be very
low. An isolated C-class event is still possible on day one (27
June) as Region 1082 (N27W88) approaches the west limb.
IIA. Geophysical Activity Summary 25/2100Z to 26/2100Z:
The geomagnetic field has been quiet to unsettled with an isolated
active period at 26/0300-0600Z. Solar wind speed data from ACE
indicated the onset of a coronal hole high speed stream at 26/0215Z
with solar wind speeds increasing to around 450 km/s.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be predominately unsettled with isolated active periods
for days one thru three (27-29 June). Activity is forecast due to a
recurrent coronal hole high speed stream.
III. Event Probabilities 27 Jun-29 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF Green
IV. Penticton 10.7 cm Flux
Observed 26 Jun 075
Predicted 27 Jun-29 Jun 077/077/078
90 Day Mean 26 Jun 075
V. Geomagnetic A Indices
Observed Afr/Ap 25 Jun 008/008
Estimated Afr/Ap 26 Jun 014/015
Predicted Afr/Ap 27 Jun-29 Jun 012/013-010/012-010/010
VI. Geomagnetic Activity Probabilities 27 Jun-29 Jun
A. Middle Latitudes
Active 20/10/10
Minor storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 25/15/15
Minor storm 10/10/10
Major-severe storm 01/01/01

SpaceRef staff editor.