Product: Weekly Highlights and Forecasts:Issued: 2008 Apr 15 2223 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 April 2008
Solar activity was very low. No flares were detected. The visible disk was spotless.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit reached high levels throughout the summary period.
Geomagnetic field activity ranged from quiet to active levels during much of the period. However, intermittent minor to major storm periods also occurred at high latitudes. ACE solar wind measurements indicated Earth was under the influence of a recurrent coronal hole
high-speed stream during the period. Solar wind velocities were elevated throughout the period with a peak of 778 km/sec detected at 08/1740 UTC and a minimum of 500 km/sec detected at 11/2044 UTC. IMF Bt was variable with a range of 1 - 7 nT. IMF Bz was variable with a
range of +/- 5 nT.
Forecast of Solar and Geomagnetic Activity
16 April - 12 May 2008
Solar activity is expected to be very low.
No proton events are expected at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit is expected to reach high levels during 16 April and 23 April - 12 May.
Geomagnetic field activity is expected to be at quiet levels during 16 - 22 April. Activity is expected to increase to active to major storm levels during 23 - 25 April due to a recurrent coronal hole high-speed stream. Activity is expected to decrease to unsettled levels during 26 - 27 April as the high-speed stream subsides. Quiet conditions are forecast during 28 - 30 April. Activity is expected to increase to unsettled to active levels during 01 - 05 May with
minor storm levels likely on 02 May as another recurrent coronal hole high-speed stream affects the field. Activity is expected to decrease to quiet to unsettled levels during the remainder of the period as the high-speed stream subsides.
Product: 27-day Space Weather Outlook Table 27DO.txt:Issued: 2008 Apr 15 2223 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 2008 Apr 15
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2008 Apr 16 70 5 2
2008 Apr 17 70 5 2
2008 Apr 18 70 5 2
2008 Apr 19 70 5 2
2008 Apr 20 75 5 2
2008 Apr 21 80 5 2
2008 Apr 22 80 5 2
2008 Apr 23 80 20 5
2008 Apr 24 80 25 6
2008 Apr 25 80 20 5
2008 Apr 26 80 8 3
2008 Apr 27 80 8 3
2008 Apr 28 80 5 2
2008 Apr 29 75 5 2
2008 Apr 30 75 5 2
2008 May 01 75 10 3
2008 May 02 70 20 5
2008 May 03 70 15 4
2008 May 04 70 10 3
2008 May 05 70 15 4
2008 May 06 70 10 3
2008 May 07 70 10 3
2008 May 08 70 5 2
2008 May 09 70 5 2
2008 May 10 70 5 2
2008 May 11 70 8 3
2008 May 12 70 8 3
(NOAA)
