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W7EES > SWPC 03.01.19 00:57l 56 Lines 2017 Bytes #999 (0) @ WW
BID : 6744_W7EES
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Subj: Solar-Geophysical Activity
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Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 364 Issued at 2200Z on 30 Dec 2018
IA. Analysis of Solar Active Regions and Activity from 29/2100Z to
30/2100Z: 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 (31 Dec, 01 Jan, 02 Jan).
IIA. Geophysical Activity Summary 29/2100Z to 30/2100Z: The geomagnetic
field has been at quiet to unsettled levels for the past 24 hours. Solar
wind speed reached a peak of 582 km/s at 30/1419Z. Total IMF reached 6
nT at 30/0445Z. The maximum southward component of Bz reached -5 nT at
30/0433Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 4040 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (31 Dec) and quiet levels
on days two and three (01 Jan, 02 Jan).
III. Event probabilities 31 Dec-02 Jan
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 30 Dec 069
Predicted 31 Dec-02 Jan 069/069/069
90 Day Mean 30 Dec 070
V. Geomagnetic A Indices
Observed Afr/Ap 29 Dec 009/008
Estimated Afr/Ap 30 Dec 009/011
Predicted Afr/Ap 31 Dec-02 Jan 009/010-006/008-006/005
VI. Geomagnetic Activity Probabilities 31 Dec-02 Jan
A. Middle Latitudes
Active 15/10/10
Minor Storm 05/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 15/15/15
Minor Storm 30/20/20
Major-severe storm 25/20/20
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