Wednesday, March 05, 2008

Weekly Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts
:Issued: 2008 Mar 04 2253 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
25 February - 02 March 2008

Solar activity was very low with no flares detected.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit reached high levels on all days but 28 February.

The geomagnetic field was at quiet to unsettled levels during 25 - 27 February. By early on 28 February, activity increased to unsettled to active levels with isolated minor storm periods observed at middle latitudes, while minor to major storm periods were observed at high latitudes. This activity persisted through midday on 01 March and was due to a recurrent coronal hole high speed stream. ACE solar wind measurements peaked at 837 km/s at 01/0603 UTC) while density peaked at 24 p/cc at 27/1541 UTC. Significant changes in the IMF were observed from late on 27 February through midday on 28 February including increased Bt (peak 11 nT at 27/1651 UTC) and intermittent periods of southward Bz (minimum -11 nT at 27/1651 UTC). The high-speed stream began decaying early on 02 March and ended the summary period with velocities near 575 km/s.

Forecast of Solar and Geomagnetic Activity
05 - 31 March 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 on all days of the forecast period except 26 March.

The geomagnetic field is expected to be mostly quiet to unsettled on 05 - 07 March. Activity is expected to increase to unsettled to active levels during 08 - 13 March with minor to major storm periods possible at high latitudes due to a recurrent coronal hole high-speed stream. Quiet to unsettled conditions are expected during 14 - 24 March as the high-speed stream subsides. Activity is expected to increase to unsettled to active levels during 25 - 28 March with minor to major storm periods possible at high latitudes due to a recurrent coronal hole high-speed stream. Quiet to unsettled conditions are expected during 29 - 31 March as the
high-speed stream subsides.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2008 Mar 04 2253 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 Mar 04
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2008 Mar 05 70 5 2
2008 Mar 06 70 5 2
2008 Mar 07 70 5 2
2008 Mar 08 70 15 4
2008 Mar 09 70 15 4
2008 Mar 10 70 10 3
2008 Mar 11 70 10 3
2008 Mar 12 70 15 4
2008 Mar 13 70 10 3
2008 Mar 14 70 8 3
2008 Mar 15 70 5 2
2008 Mar 16 70 10 3
2008 Mar 17 70 10 3
2008 Mar 18 70 8 3
2008 Mar 19 70 8 3
2008 Mar 20 70 5 2
2008 Mar 21 70 5 2
2008 Mar 22 70 5 2
2008 Mar 23 70 5 2
2008 Mar 24 70 5 2
2008 Mar 25 70 10 3
2008 Mar 26 70 20 5
2008 Mar 27 70 25 6
2008 Mar 28 70 20 5
2008 Mar 29 70 8 3
2008 Mar 30 70 5 2
2008 Mar 31 70 5 2
(NOAA)