Pages

Friday, February 06, 2009

Weekly Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts
:Issued: 2009 Feb 03 1851 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact: .www.swpc.noaa.gov/weekly.html
#
# Weekly Highlights and Forecasts
#
Highlights of Solar and Geomagnetic Activity
26 January - 01 February 2009

Solar activity was very low. No significant flare activity was observed. The visible disk was spotless during the period.

No proton events were observed at geosynchronous orbit.

The greater than 2 MeV electron flux at geosynchronous orbit was at normal levels.

Geomagnetic field activity was at mostly quiet levels during the period. Isolated active to major storm periods were observed at high latitudes midday on 26 January. This activity was due to a sustained period of southward IMF Bz in association with a recurrent coronal hole high speed stream. A weak, 9 nT sudden impulse was detected at Boulder at 30/2156 UTC. During the summary period, ACE solar wind velocities ranged from a low of 327 km/sec at 26/1311 UTC to a high of 527 km/sec at 31/2334 UTC. The Bz component of the IMF ranged primarily between -5 nT to +6 nT for the majority of the period. However, at the beginning of the period, Bz varied between -10 nT to +8 nT.

Forecast of Solar and Geomagnetic Activity
04 February - 02 March 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 be at normal levels.

The geomagnetic field is expected to be at quiet levels 04 - 14 February. Activity is expected to increase to quiet to unsettled levels on 15 February, with isolated active levels due to a recurrent coronal hole high-speed stream (CH HSS). Activity is expected to decrease to quiet levels during 16-21 February as the HSS subsides. Activity is expected to increase to quiet to unsettled levels with isolated active levels on 22 February due to another CH HSS. Activity is expected to decrease to mostly quiet levels from 23 February - 02 March.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2009 Feb 03 1852 UTC
# Prepared by the US Dept. of Commerce, NOAA, Space Weather Prediction Center
# Product description and SWPC contact: www.swpc.noaa.gov/wwire.html
#
# 27-day Space Weather Outlook Table
# Issued 2009 Feb 03
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2009 Feb 04 70 5 2
2009 Feb 05 70 5 2
2009 Feb 06 70 5 2
2009 Feb 07 70 5 2
2009 Feb 08 70 5 2
2009 Feb 09 70 5 2
2009 Feb 10 70 5 2
2009 Feb 11 70 5 2
2009 Feb 12 70 5 2
2009 Feb 13 70 5 2
2009 Feb 14 70 5 2
2009 Feb 15 70 8 3
2009 Feb 16 70 5 2
2009 Feb 17 70 5 2
2009 Feb 18 70 5 2
2009 Feb 19 70 5 2
2009 Feb 20 70 5 2
2009 Feb 21 70 5 2
2009 Feb 22 70 10 3
2009 Feb 23 70 5 2
2009 Feb 24 70 5 2
2009 Feb 25 70 5 2
2009 Feb 26 70 5 2
2009 Feb 27 70 5 2
2009 Feb 28 70 5 2
2009 Mar 01 70 5 2
2009 Mar 02 70 5 2
(NOAA)