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W7EES > SWPC 24.12.19 04:12l 61 Lines 2330 Bytes #999 (0) @ WW
BID : 13085_W7EES
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Subj: Solar-Geophysical Activity
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Joint USAF/NOAA Solar Geophysical Activity Report and Forecast
SDF Number 357 Issued at 2200Z on 23 Dec 2019
IA. Analysis of Solar Active Regions and Activity from 22/2100Z to
23/2100Z: 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 (24 Dec, 25 Dec, 26 Dec).
IIA. Geophysical Activity Summary 22/2100Z to 23/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 399 km/s at 23/0127Z. Total IMF reached 8 nT at
23/0915Z. The maximum southward component of Bz reached -6 nT at
23/0948Z. Electrons greater than 2 MeV at geosynchronous orbit reached a
peak level of 463 pfu.
IIB. Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet levels on day one (24 Dec) and quiet to unsettled levels
on days two and three (25 Dec, 26 Dec).
III. Event probabilities 24 Dec-26 Dec
Class M 01/01/01
Class X 01/01/01
Proton 01/01/01
PCAF green
IV. Penticton 10.7 cm Flux
Observed 23 Dec 073
Predicted 24 Dec-26 Dec 072/072/072
90 Day Mean 23 Dec 069
V. Geomagnetic A Indices
Observed Afr/Ap 22 Dec 002/002
Estimated Afr/Ap 23 Dec 004/005
Predicted Afr/Ap 24 Dec-26 Dec 006/005-009/008-008/008
VI. Geomagnetic Activity Probabilities 24 Dec-26 Dec
A. Middle Latitudes
Active 10/15/15
Minor Storm 01/05/05
Major-severe storm 01/01/01
B. High Latitudes
Active 20/15/15
Minor Storm 20/25/25
Major-severe storm 10/25/25
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