Product: Weekly Highlights and Forecasts:Issued: 2009 Mar 24 2221 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
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
16 - 22 March 2009
Solar activity was very low. No flares were observed. The visible disk was spotless.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at high levels on 16 - 18 March. Normal levels were observed on 19 - 22 March.
Geomagnetic field activity was at predominantly quiet levels from 16 March to mid-day on 20 March. During this time, ACE solar wind velocities gradually decreased from 473 km/s to a minimum of 271 km/s at 19/1947 UTC. The interplanetary magnetic field (IMF) Bz
ranged between -4 nT and + 5 nT. Activity increased at mid-day on 20 March, as a recurrent coronal hole rotated into a geoeffective position. Quiet to unsettled conditions were observed at
mid-latitudes through early on 22 March. Major storm periods were observed at high latitudes on 21/09 - 15 UTC. During this period, ACE solar wind velocities increased to a maximum of 472 km/s at 22/0550 UTC. The IMF Bt increased to a maximum of +12 nT, and Bz reached a minimum of -9 nT at 21/0928 UTC.
Forecast of Solar and Geomagnetic Activity
25 March - 20 April 2009
Solar activity is expected to be at very low levels.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to increase to high levels during 10-14 April. Normal flux levels are expected during the rest of the period.
Geomagnetic field activity is expected to be at predominantly quiet levels through 08 April. Activity is expected to increase to unsettled to active levels during 09 - 10 April, with a chance for minor storm periods at high latitudes due to a recurrent coronal hole high-speed stream. Mostly quiet activity is expected for the rest of the period.
Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2009 Mar 24 2222 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 2009 Mar 24
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2009 Mar 25 70 8 3
2009 Mar 26 70 8 3
2009 Mar 27 70 5 2
2009 Mar 28 70 5 2
2009 Mar 29 70 5 2
2009 Mar 30 70 5 2
2009 Mar 31 70 5 2
2009 Apr 01 70 5 2
2009 Apr 02 70 5 2
2009 Apr 03 70 5 2
2009 Apr 04 70 5 2
2009 Apr 05 70 5 2
2009 Apr 06 70 5 2
2009 Apr 07 70 5 2
2009 Apr 08 70 5 2
2009 Apr 09 70 15 4
2009 Apr 10 70 10 3
2009 Apr 11 70 5 2
2009 Apr 12 70 5 2
2009 Apr 13 70 5 2
2009 Apr 14 70 5 2
2009 Apr 15 70 5 2
2009 Apr 16 70 5 2
2009 Apr 17 70 5 2
2009 Apr 18 70 5 2
2009 Apr 19 70 5 2
2009 Apr 20 70 5 2
(NOAA)