Product: Weekly Highlights and Forecasts:Issued: 2009 Sep 08 2246 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
31 August - 06 September 2009
Solar activity was very low. Region 1025 (N17, L=169, class/area Bxo/010 on 31 August) was numbered on 31 August. Region 1025 remained inactive and decayed to spotless plage on 02 September.
No proton events were observed at geosynchronous orbit.
The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels during the period.
Geomagnetic field activity was at predominantly quiet levels during the period. Unsettled to active periods were observed at high latitudes between 04/0000 UTC to 04/0900 UTC. Solar wind at ACE indicated the increased activity was due to a recurrent coronal hole high speed stream (CH HSS). Velocities at ACE increased from a low of 342 km/s at 03/1259 UTC to a high of 504 km/s at 04/1831 UTC, before gradually decreasing to 371 km/s at the end of the period.
Interplanetary magnetic field activity included an increase in Bt between 03/1344 UTC and 04/1208 UTC (maximum of 10 nT at 04/0150), while Bz varied between -/+ 6 nT. Density reached a maximum of 10 p/cc at 04/28 UTC.
Forecast of Solar and Geomagnetic Activity
09 September - 05 October 2009
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 be at normal to moderate flux levels during the period.
Geomagnetic field activity is expected to be mostly quiet, with isolated unsettled levels during 09 - 10 September due to a weak CH HSS. Quiet levels are expected during 11 - 14 September. Quiet to unsettled conditions, with isolated active levels are expected during 15 - 17 September due to a CH HSS. Predominantly quiet levels are expected during 18 - 25 September. Quiet to unsettled conditions, with isolated active levels are expected on 26 September due to a CH HSS. Activity will decrease to predominantly quiet levels during 27 September - 05 October.
Product: 27-day Space Weather Outlook Table 27DO.txt:Issued: 2009 Sep 08 2246 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 Sep 08
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2009 Sep 09 69 10 3
2009 Sep 10 69 8 3
2009 Sep 11 69 5 2
2009 Sep 12 68 5 2
2009 Sep 13 68 5 2
2009 Sep 14 68 5 2
2009 Sep 15 68 8 3
2009 Sep 16 68 8 3
2009 Sep 17 68 5 2
2009 Sep 18 68 5 2
2009 Sep 19 68 5 2
2009 Sep 20 68 5 2
2009 Sep 21 68 5 2
2009 Sep 22 68 5 2
2009 Sep 23 68 5 2
2009 Sep 24 68 5 2
2009 Sep 25 68 5 2
2009 Sep 26 68 10 4
2009 Sep 27 68 5 2
2009 Sep 28 69 5 2
2009 Sep 29 69 5 2
2009 Sep 30 69 5 2
2009 Oct 01 69 5 2
2009 Oct 02 69 5 2
2009 Oct 03 69 5 2
2009 Oct 04 69 5 2
2009 Oct 05 69 8 3
(NOAA)
