Joint USAF/NOAA Report of Solar and Geophysical Activity
SDF Number 083 Issued at 2200Z on 24 Mar 2005
IA. Analysis of Solar Active Regions and Activity from 23/2100Z
to 24/2100Z: Solar activity was very low.
IB. Solar Activity Forecast: Solar activity is expected to be very
low to low.
IIA. Geophysical Activity Summary 23/2100Z to 24/2100Z:
The geomagnetic field was at quiet to unsettled levels.
IIB. Geophysical Activity Forecast: The geomagnetic field is
expected to be at quiet to unsettled levels on 25 March. On 26
March, isolated active conditions are expected as a recurrent high
speed stream moves into geoeffective position. On 27 March,
unsettled to active conditions are expected.
III. Event Probabilities 25 Mar-27 Mar
Class M 10/10/10
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 24 Mar 087
Predicted 25 Mar-27 Mar 090/090/085
90 Day Mean 24 Mar 098
V. Geomagnetic A Indices
Observed Afr/Ap 23 Mar 003/004
Estimated Afr/Ap 24 Mar 008/008
Predicted Afr/Ap 25 Mar-27 Mar 008/010-010/012-010/015
VI. Geomagnetic Activity Probabilities 25 Mar-27 Mar
A. Middle Latitudes
Active 20/25/25
Minor storm 10/10/10
Major-severe storm 01/01/01
B. High Latitudes
Active 25/25/30
Minor storm 10/15/15
Major-severe storm 01/05/10
73 & GUD DX,
Thomas F. Giella, KN4LF
Retired Space & Atmospheric Weather Forecaster
Plant City, FL, USA
Grid Square EL87WX
Lat & Long 27 58 33.6397 N 82 09 52.4052 W
kn4lf@arrl.net
Contesting Propagation eReflector:
http://lists.contesting.com/mailman/listinfo/propagation
HC-DX Propagation Channel:
http://www.hard-core-dx.com/index.php?topic=Propagation
KN4LF Daily Solar Space Weather & Geomagnetic Data Archive:
http://www.kn4lf.com/kn4lf5.htm
KN4LF Daily LF/MF/HF Radio Propagation Outlook:
http://www.kn4lf.com/kn4lf6.htm
KN4LF HF/MF Radio Propagation Theory Notes: http://www.kn4lf.com/kn4lf8.htm
KN4LF Amateur & SWL Radio History: http://www.kn4lf.com/index.htm
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