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FXXX06 KWNP 130528

:Product: 7-day Space Weather Highlights
:Issued: 2017 Nov 13 0513 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
#                7-day Space Weather Highlights
Highlights of Solar and Geomagnetic Activity
06 - 12 November 2017

Solar activity was very low throughout the period under a spotless
disk. The only activity was an eruptive filament observed in the NE
quadrant beginning at 10/0630 UTC in SDO/AIA 304 imagery. An
associated CME was observed off the eastern limb in SOHO/LASCO C2
imagery beginning at 10/0824 UTC, however subsequent analysis showed
no Earth-directed component. No Earth-directed CMEs were observed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
normal levels on 06-07 Nov and reached high levels on 08-12 Nov. The
largest flux of the period was 25,349 pfu observed at 11/1435 UTC.

Geomagnetic field activity was at quiet to G2 (Moderate) storm
levels over the period. The period began with solar wind speeds
between 285-355 km/s and total field around 4 nT. At approximately
07/0300 UTC, phi angle switched from a negative solar sector to
positive. Additionally, an increase in solar wind speed and total
field was observed due to the arrival of a co-rotating interaction
region preceding a positive polarity, polar connected, coronal hole
high speed stream (CH HSS). Total field reached a maximum of 23 nT
at 07/1545 UTC while the Bz component reached a maximum southward
deflection of -15 nT at 07/1508 UTC. Solar wind speed reached double
peaks of 699 km/s at 08/0004 UTC and 719 km/s at 10/1257 UTC before
slowly receding to end of period values near 430 km/s. The
geomagnetic field responded with quiet levels on 06 Nov, reached
G1-G2 (Minor-Moderate) levels on 07-08 Nov, reached unsettled to
active levels on 09-10 Nov, and calmed to mostly quiet conditions on
11-12 Nov. is the U.S. government's official web portal to all federal, state and local government web resources and services.