Status Report

Joint USAF/NOAA Report of Solar and Geophysical Activity 27 Jun 2009

By SpaceRef Editor
June 29, 2009
Filed under , , ,

:Product: Report of Solar-Geophysical Activity
:Issued: 2009 Jun 27 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 178 Issued at 2200Z on 27 Jun 2009
IA. Analysis of Solar Active Regions and Activity from 26/2100Z
to 27/2100Z: Solar activity was very low. No flares were detected.
The visible disk remained spotless.
IB. Solar Activity Forecast: Solar activity is expected to be very
IIA. Geophysical Activity Summary 26/2100Z to 27/2100Z:
Geomagnetic field activity was at mostly quiet levels.
IIB. Geophysical Activity Forecast: Geomagnetic field activity is
expected to be at quiet to unsettled levels with a chance for active
levels on day 1 (28 June) due to a favorably positioned coronal
hole. Mostly quiet conditions are expected during days 2 – 3 (29 –
30 June).
III. Event Probabilities 28 Jun-30 Jun
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 27 Jun 067
Predicted 28 Jun-30 Jun 067/067/067
90 Day Mean 27 Jun 070
V. Geomagnetic A Indices
Observed Afr/Ap 26 Jun 002/003
Estimated Afr/Ap 27 Jun 002/005
Predicted Afr/Ap 28 Jun-30 Jun 008/010-005/005-005/005
VI. Geomagnetic Activity Probabilities 28 Jun-30 Jun
A. Middle Latitudes
Active 20/15/15
Minor storm 05/01/01
Major-severe storm 01/01/01
B. High Latitudes
Active 30/20/20
Minor storm 10/05/05
Major-severe storm 01/01/01

SpaceRef staff editor.