:Product: Weekly Highlights and Forecasts
: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/weekly.html
#
#
Weekly Highlights and Forecasts
#
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.
FORECAST OF SOLAR AND GEOMAGNETIC ACTIVITY 20 MARCH - 15 APRIL
2017
Solar activity is expected to be at very low levels for the
forecast
period.
No proton events are expected at geosynchronous
orbit.
The greater than 2 MeV electron flux at geosynchronous orbit
is
expected to be at normal to moderate levels with high levels likely
on
24 March and again from 29 March - 11 April due to recurrent CH
HSS activity.
Geomagnetic field activity is expected to be at unsettled to
active
levels on 21-24 March and again from 28 March - 06 April. G1
(Minor)
geomagnetic storm levels are likely on 23, 28-31 March and 02
April
while G2 (Moderate) geomagnetic storm levels are likely on
28-29
March due to recurrent CH HSS effects.
:Product: 27-day Space
Weather Outlook Table 27DO.txt
:Issued: 2017 Mar 20 0324 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
#
#
27-day Space Weather Outlook Table
# Issued
2017-03-20
#
# UTC Radio Flux Planetary Largest
#
Date 10.7 cm A Index Kp Index
2017 Mar 20 70
5 2
2017 Mar 21 70 8 3
2017 Mar 22
71 12 4
2017 Mar 23 72 20 5
2017
Mar 24 72 8 3
2017 Mar 25 72
5 2
2017 Mar 26 72 8 3
2017 Mar 27
72 8 3
2017 Mar 28 72 35 6
2017
Mar 29 72 30 6
2017 Mar 30 72
20 5
2017 Mar 31 72 18 5
2017 Apr 01
72 15 4
2017 Apr 02 72 20 5
2017
Apr 03 72 15 4
2017 Apr 04 72
12 4
2017 Apr 05 71 12 4
2017 Apr 06
70 10 3
2017 Apr 07 70 5 2
2017
Apr 08 70 5 2
2017 Apr 09 70
5 2
2017 Apr 10 70 5 2
2017 Apr 11
70 5 2
2017 Apr 12 70 5 2
2017
Apr 13 70 5 2
2017 Apr 14 70
5 2
2017 Apr 15 70 5 2
(SWPC via
DXLD)
