Friday, January 23, 2009

Weekly Propagation Forecast Bulletins

Product: Weekly Highlights and Forecasts
:Issued: 2009 Jan 20 2151 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
12 - 18 January 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 normal levels.

Geomagnetic field activity was at mostly quiet levels during the period. However, brief unsettled to active periods occurred at high latitudes during 14 - 15 January. In addition, a 13 nT sudden impulse (SI) was detected at Boulder at 14/0121 UTC; likely associated with a faint, slow CME observed on 09 January. ACE solar wind measurements indicated minor changes during the period. Velocities ranged from 289 to 433 km/sec. A weak shock was observed
at the ACE spacecraft at 14/0015 UTC, in advance of the SI mentioned above, with minor changes detected in velocity and IMF.

Forecast of Solar and Geomagnetic Activity
21 January - 16 February 2009

Solar activity is expected to be at very low levels. No proton events are expected at synchronous 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 during 21 - 26 January. Activity is expected to increase to quiet to unsettled levels, with isolated active levels at high latitudes during 27 - 30 January due to a recurrent coronal hole high-speed stream (CH HSS).
Activity is expected to decrease to quiet levels during 31 January - 14 February. Activity is expected to increase to quiet to unsettled levels on 15 February with isolated active levels due to a recurrent CH HSS. Activity is expected to decrease to quiet levels on 16 February as the HSS subsides.

Product: 27-day Space Weather Outlook Table 27DO.txt
:Issued: 2009 Jan 20 2152 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 Jan 20
#
# UTC Radio Flux Planetary Largest
# Date 10.7 cm A Index Kp Index
2009 Jan 21 70 5 2
2009 Jan 22 70 5 2
2009 Jan 23 70 5 2
2009 Jan 24 70 5 2
2009 Jan 25 70 5 2
2009 Jan 26 70 5 2
2009 Jan 27 70 10 3
2009 Jan 28 70 8 3
2009 Jan 29 70 5 2
2009 Jan 30 70 8 3
2009 Jan 31 70 5 2
2009 Feb 01 70 5 2
2009 Feb 02 70 5 2
2009 Feb 03 70 5 2
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
(NOAA)