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W7EES  > SWPC     28.07.19 01:45l 59 Lines 2248 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 208 Issued at 2200Z on 27 Jul 2019

IA.  Analysis of Solar Active Regions and Activity from 26/2100Z to
27/2100Z: 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 (28 Jul, 29 Jul, 30 Jul).

IIA.  Geophysical Activity Summary 26/2100Z to 27/2100Z: The geomagnetic
field has been at quiet levels for the past 24 hours. Solar wind speed
reached a peak of 332 km/s at 27/0841Z. Total IMF reached 6 nT at
27/0815Z. The maximum southward component of Bz reached -5 nT at
27/1723Z.
IIB.  Geophysical Activity Forecast: The geomagnetic field is expected
to be at quiet to unsettled levels on day one (28 Jul) and quiet levels
on days two and three (29 Jul, 30 Jul).

III.  Event probabilities 28 Jul-30 Jul
Class M    01/01/01
Class X    01/01/01
Proton     01/01/01
PCAF       green

IV.  Penticton 10.7 cm Flux
Observed           27 Jul 067
Predicted   28 Jul-30 Jul 067/067/067
90 Day Mean        27 Jul 069

V.  Geomagnetic A Indices
Observed Afr/Ap 26 Jul  004/002
Estimated Afr/Ap 27 Jul  004/004
Predicted Afr/Ap 28 Jul-30 Jul  007/008-006/005-005/005

VI.  Geomagnetic Activity Probabilities 28 Jul-30 Jul
A.  Middle Latitudes
Active                10/10/10
Minor Storm           01/01/01
Major-severe storm    01/01/01
B.  High Latitudes
Active                15/15/15
Minor Storm           25/20/20
Major-severe storm    20/15/15

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