:Product: Weekly Highlights and Forecasts
:Issued: 2016 Mar 14 0430 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
07 - 13 March 2016

Solar activity reached low levels on 08-09 and 12 March. The largest
event of the period was a C3 flare from Region 2519 (N05, L=007,
class/area=Cso/80 on 13 Mar) at 09/1250 UTC. Very low levels of
solar activity were observed throughout the remainder of the period.
No coronal mass ejections (CMEs) observed in coronagraph imagery
were determined to be Earth-directed.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at
high levels on 07-11 Mar and decreased to moderate levels on 12-13
Mar.

Geomagnetic field activity reached G1 (Minor) geomagnetic storm
levels early on 07 Mar due to the influence of a positive polarity
coronal hole high speed stream (CH HSS). Activity levels subsided to
quiet to unsettled levels on 08 Mar and quiet levels by 09 Mar.
Quiet to unsettled conditions were observed on 10 Mar and continued
into early on 11 Mar when the co-rotating interaction region (CIR)
ahead of a positive polarity CH HSS caused G2 (Moderate) geomagnetic
storm conditions. As the CH HSS progressed, conditions tapered down
to active levels early on 12 Mar and into quiet to unsettled for the
remainder of the day. Activity continued to subside with only quiet
conditions observed on 13 Mar.

Forecast of Solar and Geomagnetic Activity
14 March - 09 April 2016

Solar activity is expected to be at very low levels with a chance
for C-class flares throughout 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 high levels on 16-21 Mar and 04-06 Apr. Moderate
levels are expected on 22 Mar-03 Apr and 07-09 Apr. Normal levels
are expected on 14-15 Mar.

Geomagnetic field activity is expected to reach G1 (Minor) storm
levels on 15-16 Mar and 02-03 Apr due to the influence of a negative
polarity CH HSS. Active conditions are expected on 17 Mar and 08
Apr. Unsettled conditions are expected 18 Mar and 01, 04, 07, 08
Apr. Quiet conditions are expected throughout the remainder of the
outlook period under a nominal solar wind regime.