Routine Space Environment Product Issued Weekly
Issued by NWS

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FXXX06 KWNP 200356
WEKHIL

:Product: 7-day Space Weather Highlights
:Issued: 2017 Mar 20 0323 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact on the Web
# http://www.swpc.noaa.gov/wwire.html
#
#                7-day Space Weather Highlights
#
Highlights of Solar and Geomagnetic Activity
13 - 19 March 2017

Solar activity was at very low levels with no observable spots on
the solar disk. No Earth-directed CMEs were observed during the
period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
normal to moderate levels with high levels observed on 13-15 March.
The largest flux value of the period was 8,800 pfu observed at
14/1655 UTC.

Geomagnetic field activity ranged from quiet to unsettled levels.
Solar wind speed was at nominal levels between 300 km/s and 400 km/s
through most of the period with total field near 5 nT. On 15-16
March, a slight increase in solar wind speed and total field was
observed just after a solar sector boundary crossing at 15/0008 UTC.
This was likely due to a weak connection to a positive polarity
coronal hole high speed stream (CH HSS). Total field increased to 9
nT while solar wind speed increased to near 433 km/s. The
geomagnetic field responded with isolated unsettled periods on 15
and 16 March.


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