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W7EES  > SWPC     08.12.19 02:58l 60 Lines 2233 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 341 Issued at 2200Z on 07 Dec 2019

IA.  Analysis of Solar Active Regions and Activity from 06/2100Z to
07/2100Z: 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 (08 Dec, 09 Dec, 10 Dec).

IIA.  Geophysical Activity Summary 06/2100Z to 07/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 401 km/s at 06/2146Z. Electrons greater than 2 MeV at
geosynchronous orbit reached a peak level of 104 pfu.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on days one and two (08 Dec, 09 Dec)
and quiet levels on day three (10 Dec).

III.  Event probabilities 08 Dec-10 Dec
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           07 Dec 070
Predicted   08 Dec-10 Dec 070/070/070
90 Day Mean        07 Dec 069

V.  Geomagnetic A Indices
Observed Afr/Ap 06 Dec  002/002
Estimated Afr/Ap 07 Dec  002/002
Predicted Afr/Ap 08 Dec-10 Dec  007/008-006/008-006/005

VI.  Geomagnetic Activity Probabilities 08 Dec-10 Dec
A.  Middle Latitudes
Active                20/20/10
Minor Storm           05/05/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           30/30/15
Major-severe storm    25/25/10

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