Product: Weekly Highlights and Forecasts:Issued: 2010 Mar 30 2021 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: www.swpc.noaa.gov/weekly.html
#
Highlights of Solar and Geomagnetic Activity
22 - 28 March 2010
Solar activity began the week at very low levels but increased to low levels on 26-27 March and returned to very low levels on 28 March. The increase in activity on 26-27 March consisted of five impulsive, low-level C-class flares, all originating from Region 1057 (N15, L=322, class/area Eki/410 on 28 March). Region 1057 emerged on the disk on 23 March and grew steadily during the remainder of the week.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal background levels.
The geomagnetic field began the period at quiet levels. An increase to quiet to unsettled levels was observed on 24 March. Mostly quiet levels predominated for 25-26 March, although there were some isolated unsettled to active periods at a few high latitude sites. Quiet levels prevailed for 27 March, followed by quiet to unsettled levels with some isolated active periods on 28 March. Real-time solar wind observations from the ACE spacecraft showed the onset of a co-rotating interaction region at about 1000 UTC on 25 March, followed by a weak high-speed stream beginning at about 1500 UTC on 25 March. Solar wind velocity remained elevated through the remainder of the week with typical speeds between 380-460 km/s.
Forecast of Solar and Geomagnetic Activity
31 March - 26 April 2010
Solar activity is expected to be very low with possible isolated periods of low levels during the forecast period. There is a slight chance for an isolated M-class event during the remainder of the disk passage of Region 1057 from 31 March-05 April.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to be at normal levels through most of the period. However, moderate to high flux levels are possible during 08-11 April and 14-16 April.
The geomagnetic field is expected be predominantly quiet for 31 March - 06 April. An increase to unsettled levels with a chance for isolated active periods is possible on 07-08 April due to a recurrent high-speed stream. Quiet conditions are expected to prevail for the remainder of the interval from 09-26 April.
Product: 27-day Space Weather Outlook Table 27DO.txt:Issued: 2010 Mar 30 2021 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC web contact: www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2010 Mar 30
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2010 Mar 31 82 5 2
2010 Apr 01 82 5 2
2010 Apr 02 82 5 2
2010 Apr 03 80 5 2
2010 Apr 04 80 5 2
2010 Apr 05 75 5 2
2010 Apr 06 75 5 2
2010 Apr 07 75 8 3
2010 Apr 08 80 8 3
2010 Apr 09 80 5 2
2010 Apr 10 80 5 2
2010 Apr 11 75 5 2
2010 Apr 12 75 5 2
2010 Apr 13 75 5 2
2010 Apr 14 75 5 2
2010 Apr 15 75 5 2
2010 Apr 16 75 5 2
2010 Apr 17 75 5 2
2010 Apr 18 75 5 2
2010 Apr 19 75 5 2
2010 Apr 20 75 5 2
2010 Apr 21 80 5 2
2010 Apr 22 80 5 2
2010 Apr 23 80 5 2
2010 Apr 24 80 5 2
2010 Apr 25 80 5 2
2010 Apr 26 80 5 2
(NOAA)
