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W7EES > SWPC 12.10.18 23:04l 56 Lines 2045 Bytes #999 (0) @ WW
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Subj: Solar-Geophysical Activity
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Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 284 Issued at 2200Z on 11 Oct 2018
IA. Analysis of Solar Active Regions and Activity from 10/2100Z to
11/2100Z: Solar activity has been at very low levels for the past 24
hours. There are currently 0 numbered sunspot regions on the disk.
IB. Solar Activity Forecast: Solar activity is expected to be very low
on days one, two, and three (12 Oct, 13 Oct, 14 Oct).
IIA. Geophysical Activity Summary 10/2100Z to 11/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 536 km/s at 10/2352Z. Total IMF reached 5
nT at 11/1834Z. The maximum southward component of Bz reached -3 nT at
11/0019Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 35910 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (12 Oct), quiet levels on
day two (13 Oct) and quiet to active levels on day three (14 Oct).
III. Event probabilities 12 Oct-14 Oct
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 11 Oct 071
Predicted 12 Oct-14 Oct 071/070/070
90 Day Mean 11 Oct 069
V. Geomagnetic A Indices
Observed Afr/Ap 10 Oct 012/016
Estimated Afr/Ap 11 Oct 010/010
Predicted Afr/Ap 12 Oct-14 Oct 009/008-006/005-010/012
VI. Geomagnetic Activity Probabilities 12 Oct-14 Oct
A. Middle Latitudes
Active 20/15/25
Minor Storm 05/05/10
Major-severe storm 01/01/01
B. High Latitudes
Active 15/15/15
Minor Storm 25/20/25
Major-severe storm 30/20/40
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